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

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 fabricati...

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Main Authors: 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
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:npj Flexible Electronics
Online Access:https://doi.org/10.1038/s41528-025-00419-2
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author 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
author_facet 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
author_sort Minami Yamamoto
collection DOAJ
description 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.
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publishDate 2025-05-01
publisher Nature Portfolio
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series npj Flexible Electronics
spelling doaj-art-bb9dc60dfa014fddb254f7d7f09bc8772025-08-20T03:09:21ZengNature Portfolionpj Flexible Electronics2397-46212025-05-019111710.1038/s41528-025-00419-2Mechanically alignable and all-dispenser-printable device design platform for carbon nanotube-based soft-deformable photo-thermoelectric broadband imager sheetsMinami Yamamoto0Daiki Sakai1Yuto Matsuzaki2Leo Takai3Yukito Kon4Yuto Aoshima5Noa Izumi6Naoko Hagiwara7Hayato Hamashima8Daiki Shikichi9Junyu Jin10Qi Zhang11Kohei Murakami12Yuya Kinoshita13Satsuki Yasui14Norika Takahashi15Hajime Nishiyama16Yukio Kawano17Kou Li18Department of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityLaboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of TechnologyDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityLaboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of TechnologyDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityDepartment of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo UniversityAbstract 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.https://doi.org/10.1038/s41528-025-00419-2
spellingShingle 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
Mechanically alignable and all-dispenser-printable device design platform for carbon nanotube-based soft-deformable photo-thermoelectric broadband imager sheets
npj Flexible Electronics
title Mechanically alignable and all-dispenser-printable device design platform for carbon nanotube-based soft-deformable photo-thermoelectric broadband imager sheets
title_full Mechanically alignable and all-dispenser-printable device design platform for carbon nanotube-based soft-deformable photo-thermoelectric broadband imager sheets
title_fullStr Mechanically alignable and all-dispenser-printable device design platform for carbon nanotube-based soft-deformable photo-thermoelectric broadband imager sheets
title_full_unstemmed Mechanically alignable and all-dispenser-printable device design platform for carbon nanotube-based soft-deformable photo-thermoelectric broadband imager sheets
title_short Mechanically alignable and all-dispenser-printable device design platform for carbon nanotube-based soft-deformable photo-thermoelectric broadband imager sheets
title_sort mechanically alignable and all dispenser printable device design platform for carbon nanotube based soft deformable photo thermoelectric broadband imager sheets
url https://doi.org/10.1038/s41528-025-00419-2
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