Faculty Profiles

写真a

LI Kou

Organization

Faculty of Science and Engineering Research Associate

Contact information

The inquiry by e-mail is 《here》

Homepage

https://sites.google.com/view/kou-li

External link

Degree

Ph.D. in Engoneering ( Tokyo Institute of Technology )
修士（工学） ( 東京工業大学 )

Education

2023.3

Tokyo Institute of Technology The School of Engineering The Department of Electrical and Electronic Engineering doctor course completed
2020.3

Tokyo Institute of Technology The School of Engineering The Department of Electrical and Electronic Engineering master course completed
2018.3

Tokyo Institute of Technology graduated

Research History

2023.4 - Now

Chuo University Faculty of Science and Engineering, Department of Electrical, Electronic, and Communication Engineering Assistant Professor

Professional Memberships

レーザセンシング学会
日本非破壊検査協会
炭素材料学会
Thermoelectrics Society of Japan
The Fullerenes, Nanotubes and Graphene Research Society
The Japan Society of Applied Physics

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Research Interests

Broadband photo-imaging
Flexible & stretchable electronics
Carbon nanotubes
Photo-thermoelectric effect
Non-destructive inspection

Research Areas

Nanotechnology/Materials / Applied physical properties
Natural Science / Semiconductors, optical properties of condensed matter and atomic physics
Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electric and electronic materials
Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment

Papers

Mechanically alignable and all-dispenser-printable device design platform for carbon nanotube-based soft-deformable photo-thermoelectric broadband imager sheets Reviewed

Minami Yamamoto, Daiki Sakai, Yuto Matsuzaki, Leo Takai, Yukito Kon, Yuto Aoshima, Noa Izumi, Naoko Hagiwara, Hayato Hamashima, Daiki Shikichi, Junyu Jin, Qi Zhang, Kohei Murakami, Yuya Kinoshita, Satsuki Yasui, Norika Takahashi, Hajime Nishiyama, Yukio Kawano, Kou Li

npj Flexible Electronics 9 42 2025.5

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Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC

Abstract

While photo-thermoelectric (PTE) sensors and their ultrabroadband monitoring facilitate non-destructive testing, their conventional fabrication is insufficient for high-yield integration. Specifically, PTE devices faced challenges in their crucial spatial-misalignment for separate fabrication processes per constituent. Herein, this work demonstrates mechanically alignable and all-dispenser-printable integration of carbon nanotube (CNT) functional PTE sensor devices by designing them with solution-processable ink-materials. This technique first accurately prints CNT channels, essential in PTE conversion, using higher-concentration inks, and integrates remaining constituents (dopants and conductive pastes) into single device structures at high-yield. This work further demonstrates that employing higher-concentration CNT inks, suitable for mechanical channel printing, also designs sensitive PTE sensors. These sensors serve stably as integrated devices on diverse functional substrates, facilitating ubiquitous non-destructive monitoring depending on features. Therefore, this work designs such CNT PTE integrated devices and the associated functional inspection appropriately for structures, sizes, and external environments (e.g., temperature and humidity) of monitoring targets.

DOI： 10.1038/s41528-025-00419-2

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Other Link： https://www.nature.com/articles/s41528-025-00419-2
All‐Solution‐Processable Hybrid Photothermoelectric Sensors with Carbon Nanotube Absorbers and Bismuth Composite Electrodes for Nondestructive Testing Reviewed

Yuto Matsuzaki, Reiji Tadenuma, Yuto Aoshima, Minami Yamamoto, Leo Takai, Yukito Kon, Daiki Sakai, Norika Takahashi, Ryo Koshimizu, Qi Zhang, Naoko Hagiwara, Meiling Sun, Daiki Shikichi, Raito Ota, Sayaka Hirokawa, Yukio Kawano, Kou Li

Small Science 5 ( 5 ) 2400448 2025.5

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Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1002/smsc.202400448

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n-type carbon nanotube inks for high-yield printing of ultrabroadband soft photo-imager thin sheets Reviewed

Leo Takai, Yuya Kinoshita, Norika Takahashi, Minami Yamamoto, Daiki Shikichi, Noa Izumi, Yuto Matsuzaki, Yukito Kon, Naoko Hagiwara, Yukio Kawano, Kou Li

FlexMat 2 ( 1 ) 115 - 125 2025.4

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Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1002/flm2.41

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Multi Computer Vision-Driven Testing Platform: Structural Reconstruction and Material Identification with Ultrabroadband Carbon Nanotube Imagers Reviewed

Daiki Shikichi, Raito Ota, Miki Kubota, Yuya Kinoshita, Noa Izumi, Mitsuki Kosaka, Tomoki Nishi, Daiki Sakai, Yuto Matsuzaki, Leo Takai, Minami Yamamoto, Yuto Aoshima, Ryoga Odawara, Takeru Q. Suyama, Hiroki Okawa, Zhenyu Zhou, Tomoya Furukawa, Shota Wada, Satoshi Ikehata, Imari Sato, Yukio Kawano, Kou Li

Advanced Materials Technologies 10 ( 7 ) 2401724 2025.4

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Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1002/admt.202401724

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Microwave Monitoring by Compact Carbon Nanotube Photo-Thermoelectric Sensors Beyond the Diffraction Limit Toward Ultrabroadband Non-Destructive Inspections Reviewed

Qi Zhang, Honghao Li, Ryo Koshimizu, Norika Takahashi, Yuya Kinoshita, Asumi Sano, Junyu Jin, Hiroki Okawa, Yuto Matsuzaki, Daiki Shikichi, Yukio Kawano, Kou Li

Advanced Sensor Research Early View 2400159 2025.1

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Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1002/adsr.202400159

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Broadband Photodetectors and Imagers in Stretchable Electronics Packaging Invited Reviewed

Teppei Araki, Kou Li, Daichi Suzuki, Takaaki Abe, Rei Kawabata, Takafumi Uemura, Shintaro Izumi, Shuichi Tsuruta, Nao Terasaki, Yukio Kawano, Tsuyoshi Sekitani

Advanced Materials 36 ( 20 ) 2304048 2024.5

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Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley

Abstract

The integration of flexible electronics with optics can help realize a powerful tool that facilitates the creation of a smart society wherein internal evaluations can be easily performed nondestructively from the surface of various objects that is used or encountered in daily lives. Here, organic‐material‐based stretchable optical sensors and imagers that possess both bending capability and rubber‐like elasticity are reviewed. The latest trends in nondestructive evaluation equipment that enable simple on‐site evaluations of health conditions and abnormalities are discussed without subjecting the targeted living bodies and various objects to mechanical stress. Real‐time performance under real‐life conditions is becoming increasingly important for creating smart societies interwoven with optical technologies. In particular, the terahertz (THz)‐wave region offers a substance‐ and state‐specific fingerprint spectrum that enables instantaneous analyses. However, to make THz sensors accessible, the following issues must be addressed: broadband and high‐sensitivity at room temperature, stretchability to follow the surface movements of targets, and digital transformation compatibility. The materials, electronics packaging, and remote imaging systems used to overcome these issues are discussed in detail. Ultimately, stretchable optical sensors and imagers with highly sensitive and broadband THz sensors can facilitate the multifaceted on‐site evaluation of solids, liquids, and gases.

DOI： 10.1002/adma.202304048

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Simple Non-Destructive and 3D Multi-Layer Visual Hull Reconstruction with an Ultrabroadband Carbon Nanotubes Photo-Imager Reviewed

Kou Li, Yuya Kinoshita, Daiki Shikichi, Miki Kubota, Norika Takahashi, Qi Zhang, Ryo Koshimizu, Reiji Tadenuma, Minami Yamamoto, Leo Takai, Zhenyu Zhou, Imari Sato, Yukio Kawano

Advanced Optical Materials 12 ( 14 ) 2302847 2024.5

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Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley

Abstract

While millimeter‐wave (MMW)–infrared (IR) broad photo‐imaging exhibits significant potential as an inspection technique, photo‐thermoelectric (PTE) detector operations employing carbon nanotubes (CNTs) are highly suitable because of their efficient absorption characteristics in the above bands. Such an imaging device design and the associated material coordination allow the aggregation of multiple wavelength‐specific optical information for the constituent identification of target objects in a non‐destructive manner with high sensitivity. On the other side, computer vision techniques facilitate 3D structure reconstruction as approaches from inspection methodologies, in addition to the aforementioned imaging device design. Although non‐destructive inspections require collectively satisfying both constituent identification and structural reconstruction, investigations combining MMW–IR broad photo imaging and computer vision monitoring are still insufficient. This work demonstrates computer vision‐driven simple 3D composite multi‐layer reconstructions via non‐destructive broadband multiple‐wavelength monitoring with the CNT film PTE imager. Visual hull evaluation, which is one of the representative computer vision techniques, converts 2D transmissive PTE images with different viewpoints into 3D reconstruction models. The subsequential graphical superposition of these wavelength‐specific models results in non‐destructive entire reconstructions of 3D composite multi‐layer target objects. Therefore, the present computer vision‐driven PTE broadband 3D reconstruction bridges the gap between methodologies and device design strategies toward non‐destructive inspection applications.

DOI： 10.1002/adom.202302847

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Ultraflexible Wireless Imager Integrated with Organic Circuits for Broadband Infrared Thermal Analysis Reviewed

Rei Kawabata, Kou Li, Teppei Araki, Mihoko Akiyama, Kaho Sugimachi, Nozomi Matsuoka, Norika Takahashi, Daiki Sakai, Yuto Matsuzaki, Ryo Koshimizu, Minami Yamamoto, Leo Takai, Ryoga Odawara, Takaaki Abe, Shintaro Izumi, Naoko Kurihira, Takafumi Uemura, Yukio Kawano, Tsuyoshi Sekitani

Advanced Materials 36 ( 15 ) 2309864 2024.4

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Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley

Abstract

Flexible imagers are currently under intensive development as versatile optical sensor arrays, designed to capture images of surfaces and internals, irrespective of their shape. A significant challenge in developing flexible imagers is extending their detection capabilities to encompass a broad spectrum of infrared light, particularly terahertz (THz) light at room temperature. This advancement is crucial for thermal and biochemical applications. In this study, a flexible infrared imager is designed using uncooled carbon nanotube (CNT) sensors and organic circuits. The CNT sensors, fabricated on ultrathin 2.4 µm substrates, demonstrate enhanced sensitivity across a wide infrared range, spanning from near‐infrared to THz wavelengths. Moreover, they retain their characteristics under bending and crumpling. The design incorporates light‐shielded organic transistors and circuits, functioning reliably under light irradiation, and amplifies THz detection signals by a factor of 10. The integration of both CNT sensors and shielded organic transistors into an 8 × 8 active‐sensor matrix within the imager enables sequential infrared imaging and nondestructive assessment for heat sources and in‐liquid chemicals through wireless communication systems. The proposed imager, offering unique functionality, shows promise for applications in biochemical analysis and soft robotics.

DOI： 10.1002/adma.202309864

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Ready-to-transfer two-dimensional materials using tunable adhesive force tapes Reviewed

Maki Nakatani, Satoru Fukamachi, Pablo Solís-Fernández, Satoshi Honda, Kenji Kawahara, Yuta Tsuji, Yosuke Sumiya, Mai Kuroki, Kou Li, Qiunan Liu, Yung-Chang Lin, Aika Uchida, Shun Oyama, Hyun Goo Ji, Kenichi Okada, Kazu Suenaga, Yukio Kawano, Kazunari Yoshizawa, Atsushi Yasui, Hiroki Ago

Nature Electronics 7 ( 2 ) 119 - 130 2024.2

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Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC

Abstract

Graphene and other two-dimensional (2D) materials can be used to create electronic and optoelectronic devices. However, their development has been limited by the lack of effective large-area transfer processes. Here we report a transfer method that uses functional tapes with adhesive forces controlled by ultraviolet light. The adhesion of the tape is optimized for the transfer of monolayer graphene, providing a yield of over 99%. Once detached from the growth substrate, the graphene/tape stack enables easy transfer of graphene to the desired target substrate. The method can be used to transfer other 2D materials, including bilayer graphene, transition metal dichalcogenides, hexagonal boron nitride and stacked heterostructures. The solvent-free nature of the final release step facilitates transfer to various target substrates including flexible polymers, paper and three-dimensional surfaces. The tape/2D material stacks can also be cut into desired sizes and shapes, allowing site-selective device fabrication with reduced loss of 2D materials.

DOI： 10.1038/s41928-024-01121-3

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Other Link： https://www.nature.com/articles/s41928-024-01121-3
All-Screen-Coatable Photo-Thermoelectric Imagers for Physical and Thermal Durability Enhancement Reviewed

Kou Li, Yuto Matsuzaki, Sota Takahara, Daiki Sakai, Yuto Aoshima, Norika Takahashi, Minami Yamamoto, Yukio Kawano

Advanced Materials Interfaces 10 ( 35 ) 2300528 2023.10

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Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1002/admi.202300528

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Recent Progress in Development of Carbon-Nanotube-Based Photo-Thermoelectric Sensors and Their Applications in Ubiquitous Non-Destructive Inspections Invited Reviewed

Kou Li, Yuya Kinoshita, Daiki Sakai, Yukio Kawano

Micromachines 14 ( 1 ) 61 2022.12

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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI AG

The photo-thermoelectric (PTE) effect in electronic materials effectively combines photo-absorption-induced local heating and associated thermoelectric conversion for uncooled and broadband photo-detection. In particular, this work comprehensively summarizes the operating mechanism of carbon nanotube (CNT)-film-based PTE sensors and ubiquitous non-destructive inspections realized by exploiting the material properties of CNT films. Formation of heterogeneous material junctions across the CNT-film-based PTE sensors, namely photo-detection interfaces, triggers the Seebeck effect with photo-absorption-induced local heating. Typical photo-detection interfaces include a channel–electrode boundary and a junction between P-type CNTs and N-type CNTs (PN junctions). While the original CNT film channel exhibits positive Seebeck coefficient values, the material selections of the counterpart freely govern the intensity and polarity of the PTE response signals. Based on these operating mechanisms, CNT film PTE sensors demonstrate a variety of physical and chemical non-destructive inspections. The device aggregates broad multi-spectral optical information regarding the targets and reconstructs their inner composite or layered structures. Arbitrary deformations of the device are attributed to the macroscopic flexibility of the CNT films to further monitor targets from omni-directional viewing angles without blind spots. Detection of blackbody radiation from targets using the device also visualizes their behaviors and associated changes.

DOI： 10.3390/mi14010061

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Stretchable broadband photo-sensor sheets for nonsampling, source-free, and label-free chemical monitoring by simple deformable wrapping Reviewed

Kou Li, Teppei Araki, Ryogo Utaki, Yu Tokumoto, Meiling Sun, Satsuki Yasui, Naoko Kurihira, Yuko Kasai, Daichi Suzuki, Ruben Marteijn, Jaap M.J. den Toonder, Tsuyoshi Sekitani, Yukio Kawano

Science Advances 8 ( 19 ) eabm4349 2022.5

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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

Chemical monitoring communicates diverse environmental information from industrial and biological processes. However, promising and sustainable systems and associated inspection devices that dynamically enable on-site quality monitoring of target chemicals confined inside transformable and opaque channels are yet to be investigated. This paper designs stretchable photo-sensor patch sheets for nonsampling, source-free, and label-free on-site dynamic chemical monitoring of liquids flowing inside soft tubes via simple deformable surface wrapping. The device integrates carbon nanotube–based broadband photo-absorbent thin films with multilayer-laminated stretchable electrodes and substrates. The patterned rigid-soft structure of the proposed device provides durability and optical stability against mechanical deformations with a stretchability range of 70 to 280%, enabling shape-conformable attachments to transformable objects. The effective use of omnidirectional and transparent blackbody radiation from free-form targets themselves allows compact measurement configuration and enhances the functionality and simplicity of this scheme, while the presenting technology monitors concentrations of arbitrary water-soluble chemicals.

DOI： 10.1126/sciadv.abm4349

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光熱起電力型フレキシブル広帯域撮像スキャナ Invited

李恒

日本熱電学会誌 18 ( 2 ) 92 - 93 2022.1

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Authorship：Lead author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)

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Robot-assisted, source-camera-coupled multi-view broadband imagers for ubiquitous sensing platform Reviewed

Kou Li, Ryoichi Yuasa, Ryogo Utaki, Meiling Sun, Yu Tokumoto, Daichi Suzuki, Yukio Kawano

Nature Communications 12 3009 2021.5

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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media {LLC}

DOI： 10.1038/s41467-021-23089-w

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A Terahertz Video Camera Patch Sheet with an Adjustable Design based on Self-Aligned, 2D, Suspended Sensor Array Patterning Reviewed

Daichi Suzuki, Kou Li, Koji Ishibashi, Yukio Kawano

Advanced Functional Materials 31 ( 14 ) 2008931 2021.4

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Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley

DOI： 10.1002/adfm.202008931

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Series Photothermoelectric Coupling Between Two Composite Materials for a Freely Attachable Broadband Imaging Sheet Reviewed

Kou Li, Daichi Suzuki, Yukio Kawano

Advanced Photonics Research 2 ( 3 ) 2000095 2021.3

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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Wiley

DOI： 10.1002/adpr.202000095

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All-printable flexible photo-thermoelectric broadband terahertz and millimeter-waves imagers with carbon nanotubes Reviewed

2022 IEEE Asia-Pacific Microwave Conference 955 - 957 2022.11

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.23919/APMC55665.2022.10000011

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Computer Vision-Driven Non-Destructive Multi-Layered 3D Reconstruction with Broadband Terahertz and Millimeter-Wave Imagers Reviewed

Yuya Kinoshita, Kou Li, Zhenyu Zhou, Imari Sato, Yukio Kawano

2022 IEEE Asia-Pacific Microwave Conference 327 - 329 2022.11

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.23919/APMC55665.2022.9999985

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しなやかな環境親和性を持つ非破壊撮像プラットフォーム～世紀の発見から30年：カーボンナノチューブが織り成す匠の眼～

李恒

第35回独創性を拓く先端技術大賞文部科学大臣賞受賞論文 2022.7

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Authorship：Lead author Language：Japanese

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Stretchable Printed Circuit Board for Wireless Light-Sensing System Reviewed

Teppei Araki, Kou Li, Naoko Kurihira, Yuko Kasai, Daichi Suzuki, Satsuki Yasui, Yukio Kawano, Tsuyoshi Sekitani

2022 International Conference on Electronics Packaging (ICEP) 77 - 78 2022.5

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Language：English Publishing type：Research paper (international conference proceedings) Publisher：IEEE

Flexible hybrid electronics (FHE) has the potential to realize flexible and light large-area electronics by integrating the benefits of traditional semiconductor processing. In addition, printable electronics is expected to lead to resource and energy savings. In this study, we have developed stretchable printed circuit boards, with excellent ductility, on which light-emitting diodes (LEDs) and light sensors were mounted to fabricate sheet-type arrays. The technology developed herein for light-sensing systems based on light sources and detectors is expected to be used as a nondestructive method to inspect objects with arbitrary surfaces.

DOI： 10.23919/icep55381.2022.9795470

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Internal structure visualization by terahertz computed tomography with carbon nanotube photo-scanner toward multi-frequency image reconstruction Reviewed

Tomoya Furukawa, Takeru Suyama, Kou Li, Imari Sato, Yukio Kawano

2021 IEEE Asia-Pacific Microwave Conference 341 - 343 2021.11

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/apmc52720.2021.9661938

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Computer tomography defect diagnosis with carbon nanotube terahertz photo-scanner toward multi-view and multi-frequency image reconstruction Reviewed

Tomoya Furukawa, Takeru Suyama, Kou Li, Imari Sato, Yukio Kawano

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves 1 - 2 2021.9

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz50926.2021.9567061

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Nondestructive terahertz shape restoration of 3D objects with photo-source-coupled ultrabroadband carbon nanotubes scanners Reviewed

Shota Wada, Kou Li, Ryogo Utaki, Meiling Sun, Yukio Kawano

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves 1 - 2 2020.11

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz46771.2020.9370677

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A highly-sensitive and highly-integrated flexible broadband imager with 3D printed -shaped photo-thermoelectric pixel structures Reviewed

Kou Li, Ryogo Utaki, Meiling Sun, Y Kawano

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves 1 - 2 2020.11

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Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz46771.2020.9370813

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Three-dimensional shape reconstruction in millimeter-terahertz wave regions with carbon nanotube film array scanners Reviewed

Shota Wada, Kou Li, Meiling Sun, Ryogo Utaki, Yukio Kawano

2020 International Topical Meeting on Microwave Photonics 264 - 266 2020.11

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.23919/mwp48676.2020.9314493

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Multi-wavelength-coupled in-line pharmaceutical monitoring inspections with photo-thermoelectric device design of broadband image sensor array sheets Reviewed

Meiling Sun, Kou Li, Ryogo Utaki, Yukio Kawano

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves 1 - 2 2020.11

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz46771.2020.9370999

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A stretchable wideband photo-thermoelectric wrap scanner sheet for wearable and noninvasive liquid quality monitoring Reviewed

Ryogo Utaki, Kou Li, Yukio Kawano

2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves 1 - 2 2020.11

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz46771.2020.9370541

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Multi-view Terahertz Imagers with Flexible Carbon Nanotube Film Arrays Reviewed

Kou Li, Ryoichi Yuasa, Ryogo Utaki, Meiling Sun, Yu Tokumoto, Daichi Suzuki, Yukio Kawano

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves 1 - 2 2019.9

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Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz.2019.8874273

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Carbon Nanotube Film Terahertz Detectors with Multiple PN Junctions Reviewed

Ryogo Utaki, Kou Li, Meiling Sun, Yu Tokumoto, Yukio Kawano

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves 1 - 2 2019.9

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz.2019.8874019

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Stretchable Terahertz Imagers for Wearable Bio-monitoring Applications Reviewed

Yu Tokumoto, Kou Li, Teppei Araki, Yuko Harada, Tsuyoshi Sekitani, Yukio Kawano

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves 1 - 2 2019.9

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz.2019.8874350

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Remote Selective Liquid Inspection with Carbon Nanotube Terahertz Imagers Reviewed

Meiling Sun, Kou Li, Yu Tokumoto, Ryogo Utaki, Yukio Kawano

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves 1 - 2 2019.9

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Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz.2019.8874135

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Sensitivity Enhancement of Photothermoelectric Terahertz Detectors with Series Combination between Carbon Nanotubes and Metals Reviewed

Kou Li, Daichi Suzuki, Yuki Ochiai, Yukio Kawano

2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves 1 - 2 2018.9

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Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)

DOI： 10.1109/irmmw-thz.2018.8510320

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Books

薄くて柔らかいシート型光センサ（話題の計測制御機器2025）

阿部岳晃, 李恒, 鈴木大地, 植村隆文, 河野行雄, 関谷毅, 荒木徹平（ Role： Contributor）

日本工業出版 2025.1

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カーボンナノチューブを用いた折り曲げ性・伸縮性撮像センサと検査応用（検査技術）

久保田実樹, 小田原遼河, 高井怜於, 河野行雄, 李恒（ Role： Contributor10月号（2024））

日本工業出版 2024.10

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カーボンナノチューブ膜を用いたフレキシブル非破壊検査シートの開発と応用（テラヘルツ波の発生・検出・制御技術と最新応用～イメージング，超高速通信，非破壊検査，バイオ，セキュリティ～）

敷地大樹, 松﨑勇斗, 河野行雄, 李恒（ Role： Contributor第5章，第7節）

技術情報協会 2024.7

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カーボンナノチューブ型ミリ波・テラヘルツ波・赤外撮像素子と検査応用（異物の分析技術と試料の前処理・結果の解釈）

松﨑勇斗, 敷地大樹, 河野行雄, 李恒（ Role： Contributor1章，19節）

技術情報協会 2024.5

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貼り付けるだけで水溶液濃度を計測できる光センサシートの開発（月刊配管技術）

李恒, 河野行雄（ Role： Contributor65巻 2号）

日本工業出版 2023.2

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インフラ内部の欠陥を全方位視野で可視化するユビキタスな電磁波撮像プラットフォームの開発と異常検知（機械学習・ディープラーニングによる“異常検知”技術と活用事例集）

木下祐哉, 酒井大揮, 李恒, 河野行雄（ Role： Contributor5章 2節）

技術情報協会 2022.12

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カーボンナノ材料のテラヘルツ検出・撮像デバイスへの応用（月刊MATERIAL STAGE）

酒井大揮, 木下祐哉, 李恒, 河野行雄（ Role： Contributor21巻 12号特集2「テラヘルツ波」を吸収，透過，反射するマテリアルのニーズと開発例）

技術情報協会 2022.11

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Nanocarbon terahertz devices（New Technologies and Applications of Two-Dimensional Materials Expanding from Graphene）

Kou Li, Toshio Sugaya, Yukio Kawano（ Role： ContributorChapter 2, Section 5）

NTS 2020.3

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Photo-thermoelectric-type flexible terahertz scanner（Next Generation Thermoelectric Materials and Modules: the Dawn of Thermoelectric Conversion Technology）

Kou Li, Yukio Kawano（ Role： ContributorChapter 3, Section 6）

CMC Publishing 2020.3

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Presentations

（Invited）A mechanically stretchable and optically broadband imager sheet Invited

Kou Li, Teppei Araki, Tsuyoshi Sekitani, Yukio Kawano

8th International Workshop on Nanocarbon Photonics and Electronics 2022.8

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Event date： 2022.8 　　

Language：English Presentation type：Oral presentation (invited, special)

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（Invited）Multifunctional and omnidirectional photo-thermal monitoring robots for ubiquitous safety-net platform Invited

Kou Li, Yukio Kawano

14th Asia-Oceania Top University League on Engineering 2019.11

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（Keynote）Remote Selective Liquid Inspection with Carbon Nanotube Terahertz Imagers

Meiling Sun, Kou Li, Yu Tokumoto, Ryogo Utaki, Yukio Kawano

The 44th International Conference on Infrared, Millimeter and Terahertz Waves 2019.9

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Language：English Presentation type：Oral presentation (keynote)

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（Keynote）Carbon Nanotube Film Terahertz Detectors with Multiple PN Junctions

Ryogo Utaki, Kou Li, Meiling Sun, Yu Tokumoto, Yukio Kawano

The 44th International Conference on Infrared, Millimeter and Terahertz Waves 2019.9

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Language：English Presentation type：Oral presentation (keynote)

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（Keynote）Multi-view Terahertz Imagers with Flexible Carbon Nanotube Film Arrays

Kou Li, Ryoichi Yuasa, Ryogo Utaki, Meiling Sun, Yu Tokumoto, Daichi Suzuki, Yukio Kawano

The 44th International Conference on Infrared, Millimeter and Terahertz Waves 2019.9

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Language：English Presentation type：Oral presentation (keynote)

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Awards

第17回廣野賞

2024.9 一般社団法人レーザセンシング学会ナノカーボン型ミリ波–赤外イメージャーによる視体積交差タイプの非破壊検査実証

李恒
令和5年度手島精一記念研究賞（博士論文賞）

2024.3 A study on photo-thermoelectric sensor array sheets and three-dimensional non-destructive inspection applications

李恒
令和5年度コニカミノルタ画像科学奨励賞（優秀賞）

2024.1 公益財団法人コニカミノルタ画像技術振興財団ミリ波–赤外光帯のオンサイト非破壊検査の実現に向けたカーボンナノチューブ積層型撮像パッチシートの創出

李恒
第20回飯島奨励賞

2023.10 フラーレン・ナノチューブ・グラフェン学会

李恒
The 35th Advanced Technology Award（MEXT Award）

2022.6 Sankei Shimbun

Kou Li
Young Scientist Poster Award（The 61st FNTG）

2022.3 Chemically-enriched and integrated carbon nanotube photo-thermoelectric scanners for non-sampling, source and label-free chemical monitoring

Kou Li, Yukio Kawano
Student Best Poster Award（The 11th ICFPE）

2021.10 The International Conference on Flexible and Printed Electronics All-printable and flexibly-designable broadband 360° photo-thermal imager

Kou Li, Yukio Kawano
Poster Award（The 82nd JSAP Autumn Meeting 2021）

2021.10 The Japan Society of Applied Physics Sensitivity tuning of semiconducting carbon nanotube photo-imagers

Kou Li, Norika Takahashi, Yukio Kawano
Best Poster Award（The 18th Annual Meeting of the Thermoelectrics Society of Japan）

2021.8 Thermoelectric Society of Japan Flexible broadband camera with series photo-thermoelectric coupling

Kou Li, Yukio Kawano
Student Award（The 17th Thin Film Materials & Devices Meeting）

2020.11 Thin Film Materials & Devices Meeteing A highly sensitive and flexible photo-thermoelectric image sensor with 3D printed series π structures between single-walled carbon nanotube thin-film channels and Bi2Te3 composites

Kou Li, Yukio Kawano
Rakusuikai Prize 2020

2020.3 Tokyo Institute of Technology
Master’s Program Representative 2020

2020.3 Tokyo Institute of Technology
Outstanding Master Student Award 2020

2020.3 Tokyo Institute of Technology
Student Travel Award（The 35th NIR Forum）

2019.11 Japan Council for Near Infrared Spectroscopy A portable 360o around-view photo-thermal camera for ubiquitous near infrared imaging inspection robots

Kou Li, Ryoichi Yuasa, Ryogo Utaki, Meiling Sun, Yu Tokumoto, Daichi Suzuki, Yukio Kawano
Student Presentation Award（Symposium on Frontier of Terahertz Science VI）

2019.11 The Japan Society of Applied Physics

Kou Li, Ryoichi Yuasa, Ryogo Utaki, Meiling Sun, Yu Tokumoto, Yukio Kawano
Outstanding Presentation Award（11th MISW）

2019.8 MISW Committee Multifunctional around-view monitoring robots for ubiquitous social safety-net system

Kou Li, Ryoichi Yuasa, Ryogo Utaki, Meiling Sun, Yu Tokumoto, Yukio Kawano
The Best Young Scientist Poster Presentation Award（NPO 2018）

2018.8 University of Eastern Finland Carbon Nanotube Film Flexible Terahertz Detectors on Polymer Films with Series Electrodes for Sensitivity Enhancement

Kou Li, Daichi Suzuki, Yuki Ochiai, Yukio Kawano
Outstanding Presentation Award（Annual Meeting of EISESiV 2021）

2022.2 Research Center for the Earth Inclusive Sensing Empathizing with Silent Voices
Outstanding Presentation Award（Annual Meeting of EISESiV 2020）

2021.2 Research Center for the Earth Inclusive Sensing Empathizing with Silent Voices
Full Refund Waiver of Graduation Loan Scholarship

2020.6 Japan Student Services Organization
Outstanding Presentation Award（Annual Meeting of EISESiV 2018）

2019.2 Research Center for the Earth Inclusive Sensing Empathizing with Silent Voices
The Best Poster Presentation Award（The 1st SSS Workshop）

2018.11 Super Smart Society Promotion Consortium
Outstanding Midterm Graduation Thesis Presentation Award 2017

2017.10 Tokyo Institute of Technology

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Research Projects

実装から廃棄までオンサイト完結するパッケージタイプ非破壊検査カメラの創出

2025.4 - 2027.3

公益財団法人フジシール財団 2025年度若手研究助成中央大学

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Authorship：Principal investigator

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長波長光計測の光路解析による屋外利用可能な透視構造復元の実証

2025.4 - 2027.3

公益財団法人島津科学技術振興財団 2024年度研究開発助成中央大学

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Authorship：Principal investigator

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カーボンナノチューブが織り成す“画像情報処理の眼”と非破壊検査技術への新展開

2025.1 - 2026.12

公益財団法人栢森情報科学振興財団 2024年度研究助成中央大学

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Authorship：Principal investigator

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カーボンナノチューブ膜を用いた光熱電変換におけるマテリアルズインフォマティクスへの新展開

2025.6 - 2026.5

公益財団法人徳山科学技術振興財団 2025年度スタートアップ助成中央大学

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材質同定・全天球透視検査に向けたカーボン・ゴム印刷式のビーチボール型カメラの創出

2025.4 - 2026.3

公益財団法人立石科学技術振興財団 2025年度研究助成（A）中央大学

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Authorship：Principal investigator

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光熱起電力効果特有のカメラ構造化に向けた極性制御ナノカーボン印刷インク設計

2025.4 - 2026.3

一般財団法人新素材情報財団令和6年度研究助成中央大学

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Authorship：Principal investigator

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透視型・長波長光イメージングのプロジェクションマッピングによるオンサイトなLive非破壊検査補助事業

2025.4 - 2026.3

公益財団法人 JKA 機械振興に資する研究・2025年度若手研究中央大学

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Authorship：Principal investigator

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パッチカメラシートと反射系長波長光計測による空調検査

2025.4 - 2026.3

公益財団法人八洲環境技術振興財団 2024年度研究開発・調査助成中央大学

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Authorship：Principal investigator

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災害（砂塵・瓦礫・煙霧）環境での透視検査に向けた広帯域光測距

2025.4 - 2026.3

公益財団法人鹿島学術振興財団 2025年度一般研究助成中央大学

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Authorship：Principal investigator

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走行車体表面へ実装可能なミリ波–赤外カメラと透視・材質同定タイプ光測距による交通現場の非破壊検査実証

2025.4 - 2026.3

公益財団法人スズキ財団 2024年度科学技術研究助成（一般）中央大学

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Authorship：Principal investigator

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稼働機器のモータ内に薄く柔軟に実装可能なシート型ミリ波–赤外トモグラフィ検査の確立

2025.2 - 2026.3

パワーアカデミー 2024年度パワーアカデミー研究助成「萌芽研究（個人型）」中央大学

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Authorship：Principal investigator

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組成制御カーボンナノチューブへの体系的イオンドービービングと極限感度式の非破壊検査カメラ応用

2024.8 - 2026.3

一般財団法人イオン工学振興財団令和6年度研究助成中央大学

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Authorship：Principal investigator

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材質同定・構造復元型の即時検査に向けた高精度印刷によるミリ波–赤外カメラ膜の創製

2024.4 - 2026.3

独立行政法人日本学術振興会若手研究中央大学

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Authorship：Principal investigator

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6G・7G通信の非破壊検査応用とナノカーボン撮像素子の超解像高集積な回折限界打破

2024.4 - 2026.3

公益財団法人電気通信普及財団 2023年度研究調査助成中央大学

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Authorship：Principal investigator

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検査員視覚と調和する透明光熱電撮像ゴーグルの創製

2023.10 - 2026.3

国立研究開発法人科学技術振興機構戦略的創造研究推進事業 ACT-X リアル空間を強靭にするハードウェアの未来中央大学

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Authorship：Principal investigator

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大面積な超広帯域ミリ波–赤外ビデオシートによる即時材質同定型コンピュータビジョンの実証

2024.10 - 2025.9

公益財団法人服部報公会令和6年度工学研究奨励援助中央大学

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Authorship：Principal investigator

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オンサイト非破壊検査の高信頼化に向けた全印刷による人工皮膚型の深部透視カメラの創出

2024.9 - 2025.8

一般財団法人機械システム振興協会令和６年度先端的研究分野における共同調査・研究（先端共同プロジェクト）中央大学

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Authorship：Principal investigator

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広帯域・多波長なミリ波–赤外光学計測の動的な二系統への拡張による豆類製品の即時非破壊検査

2024.5 - 2025.4

公益財団法人タカノ農芸化学研究助成財団 2024年度研究助成（若手部門）中央大学

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Authorship：Principal investigator

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ナノカーボン吸光膜・熱電変換電極の立体集積と非破壊カメラ応用

2024.4 - 2025.3

公益財団法人双葉電子記念財団 2024年度自然科学研究助成中央大学

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Authorship：Principal investigator

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屋内給湯（ガス・温水供給）環境の複合的非破壊検査に向けたパッチ撮像システムの創出

2024.4 - 2025.3

一般財団法人パロマ環境技術開発財団 2024年度研究助成中央大学

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Authorship：Principal investigator

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汚染環境のオンサイト検査センサの創出に向けたカーボン・樹脂型洗濯パッケージの開拓

2024.4 - 2025.3

公益財団法人フジシール財団 2024年度パッケージ若手研究助成中央大学

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Authorship：Principal investigator

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光熱起電力効果型ストレッチャブルカメラシートによる液体配管廃熱のリサイクル撮像利用と選択性を持つオンサイト液質検査パッチシステムへの展開

2024.4 - 2025.3

公益財団法人岩谷直治記念財団第50回岩谷科学技術研究助成中央大学

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Authorship：Principal investigator

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金属探知・非金属材料同定型の全視野二次元カメラシートによる工業製品の非破壊精密検査

2024.1 - 2025.3

公益財団法人精密測定技術振興財団 2023年度調査・研究事業に対する助成中央大学

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Authorship：Principal investigator

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広帯域・全方位深部撮像が可能な自己放射・自走式のカーボンナノチューブ膜型ミリ波–赤外光内視鏡の創出

2024.1 - 2025.3

公益財団法人スズキ財団 2023年度科学技術研究助成（若手）中央大学

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Authorship：Principal investigator

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超高感度なハイブリッド構造・光熱起電力効果型イメージセンサの全印刷作製

2023.12 - 2025.3

一般財団法人熱・電気エネルギー技術財団第31回研究助成中央大学

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Authorship：Principal investigator

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室温での超広帯域・高感度な長波長光センシングの実現に向けた一次元ナノ構造体による新しい熱型検出機構の解明

2023.12 - 2025.3

公益財団法人松尾学術振興財団第36回松尾学術研究助成中央大学

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Authorship：Principal investigator

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医薬品製造過程での即時不良品検知に向けた広帯域多波長インライン撮像システムの創製

2023.10 - 2025.3

公益財団法人住友電工グループ社会貢献基金 2023年度学術・研究助成中央大学

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Authorship：Principal investigator

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光熱電検査素子の遠隔駆動に向けた体系的組成設計による応答・雑音トレードオフの打破

2023.8 - 2025.3

独立行政法人日本学術振興会科学研究費助成事業研究活動スタート支援中央大学

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Authorship：Principal investigator

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質感を伴う検査に向けた光熱起電力効果によるサイバー・フィジカル一体な匠の眼の創製

2024.1 - 2024.12

一般財団法人鷹野学術振興財団 2023年度研究助成中央大学

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Authorship：Principal investigator

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光熱起電力効果型の非破壊検査及び計測技術の設計原理解明に向けたカーボンナノチューブの電気特性制御

2023.10 - 2024.9

公益財団法人村田学術振興財団第39回研究助成中央大学

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Authorship：Principal investigator

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A highly sensitive and flexible photo-thermoelectric image sensor with 3D printed π structures between SWCNTs and Bi composites

2020 - 　

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Authorship：Principal investigator

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A highly-sensitive and highly-integrated flexible broadband imager with 3D printed π-shaped photo-thermoelectric pixel structures

2020 - 　

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Authorship：Principal investigator

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Multi-view Terahertz Imagers with Flexible Carbon Nanotube Film Arrays

2019 - 　

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Authorship：Principal investigator

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Ubiquitous around view photo-thermal monitoring system with flexible carbon nanotube

2019 - 　

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Authorship：Principal investigator

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Social Activities

招待研究展示

Role(s)： Demonstrator

nanotech実行委員会 nanotech 2023 2023.2 - 　

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Type：Science festival

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Invited research exhibition

Role(s)： Demonstrator

nanotech executive committee nanotech 2022 2022.1 - 　

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Type：Science festival

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Lab Visit for Toin Gakuen High School

Role(s)： Organizing member,　Demonstrator

Tokyo Institute of Technology 2019.12 - 　

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Type：University open house

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Research exhibition

Role(s)： Demonstrator

Japan Science and Technology Agency JST Fair 2018 2018.8 - 　

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Type：Science festival

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Research exhibition

Role(s)： Demonstrator

Japan Science and Technology Agency Innovation Japan 2017 2017.9 - 　

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Type：Science festival

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Media Coverage

前人未到のテラヘルツ波 Internet

学術変革領域研究(A)「2.5次元物質科学：社会変革に向けた物質科学のパラダイムシフト」漫画教材第3話 2023.5

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Author：Other

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理系の歩き方 TV or radio program

産経新聞社公式YouTubeチャンネルSankeiNews 2022.11

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Author：Other

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李恒さんが第35回独創性を拓く先端技術大賞の「文部科学大臣賞」を受賞 Internet

東京工業大学東工大ニュース 2022.10

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Author：Other

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「初心忘れず研鑽」先端技術大賞受賞者ら喜び語る Newspaper, magazine

産経新聞社産経新聞 2022.7

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Author：Other

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先端技術大賞東工大工学院の李さんら表彰 Newspaper, magazine

産経新聞社産経新聞 2022.7

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Author：Other

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研究紹介㊦インフラ検査に革命どんな形もカーボンナノチューブで「文部科学大臣賞」受賞 Newspaper, magazine

産経新聞 2022.7

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文部科学大臣賞に東工大・李恒さん「第35回独創性を拓く先端技術大賞」受賞者発表 Newspaper, magazine

産経新聞社プレスリリース 2022.6

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Author：Other

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先端技術大賞受賞者決まる文部科学大臣賞に東工大・李さん Newspaper, magazine

産経新聞社産経新聞 2022.6

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Author：Other

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柔らかく伸びる光センサシートを開発 Internet

中央大学研究支援室 +C特集 2022.5

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Author：Other

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A flexible, in-pipe sensor sheet for the continuous monitoring of liquid quality Internet

Chuo University・Tokyo Institute of Technology・Osaka University Press release 2022.5

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New Nondestructive Broadband Imager Is the Next Step Towards Advanced Technology Internet

Tokyo Institute of Technology・Chuo Unievrsity Press release 2021.6

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A Flexible Approach to Terahertz Imaging Newspaper, magazine

OPTICA Optics and Photonics News 2021.2

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Novel Flexible Terahertz Camera Can Inspect Objects with Diverse Shapes Internet

Tokyo Institute of Technology・RIKEN Press release 2021.2

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シート状電磁波カメラ TV or radio program

TV Tokyo World Business Satellite 2021.1

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テラヘルツ波 TV or radio program

TV Tokyo News Morning Satellite 2018.10

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指先につけるだけで非破壊検査が出来るデバイス TV or radio program

TBS Mirai no Kigen 2018.8

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柔らかい光センシングによる簡便な液質計測手法の創出に関する研究 Promotional material

Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology FIRST NEWS No.12 2022.6

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管内の液質非破壊計測 Newspaper, magazine

The Nikkan Kogyo Shimbun Nikkan Kogyo Shimbun 2022.5

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中央大・東工大・阪大、新しい機能を示す光センサシートを開発 Newspaper, magazine

Nikkei Nihon Keizai Shimbun 2022.5

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ユビキタス電磁波センサネットワークに資するデバイス・システムに関する研究 Promotional material

Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology FIRST NEWS No.11 2021.12

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物体を透過する電磁波，シート型カメラで壊さず検査 Newspaper, magazine

Nikkei Nihon Keizai Shimbun 2021.2

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薄膜集積テラヘルツ帯撮像シート開発及び非破壊検査応用プロトタイプ設計の研究 Promotional material

Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology FIRST NEWS No.8 2020.6

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カーボンナノチューブフィルムによるフレキシブル非破壊撮像カメラに関する研究 Promotional material

Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology FIRST NEWS No.7 2019.12

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