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 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.
Authors
- Minami Yamamoto
- N. Izumi (ORCID: https://orcid.org/0000-0003-1114-597X)
- Yukio Kawano (ORCID: https://orcid.org/0000-0002-8456-2937)
- Yuya Kinoshita
- Naoko Hagiwara
- Kohei Murakami (ORCID: https://orcid.org/0000-0001-5458-410X)
- Yukito Kon
- Kou Li (ORCID: https://orcid.org/0000-0001-8756-819X)
- Satsuki Yasui
- Daiki Sakai
- Hajime Nishiyama
- Junyu Jin
- Norika Takahashi
- Leo Takai
- Daiki Shikichi
- Qi Zhang (ORCID: https://orcid.org/0000-0002-9790-916X)
- Yuto Aoshima
- Yuto Matsuzaki
- Hayato Hamashima
Institutions
- Tokyo Institute of Technology (JP)
- National Institute of Informatics (JP)
- Kanagawa Industrial Technology Center (JP)
- Chuo University (JP)
Publication Details
- Journal
- npj Flexible Electronics
- Published
- 2025-05-08
- DOI
- https://doi.org/10.1038/s41528-025-00419-2
- Citations
- 7
- Primary Topic
- Advanced Thermoelectric Materials and Devices
- Type
- article
- Field-Weighted Citation Impact
- 3.62
Funders
- Konica Minolta Imaging Science Foundation
- Futaba Electronics Memorial Foundation
- Life Sciences Research Foundation
- Kayamori Foundation of Informational Science
- Precise Measurement Technology Promotion Foundation
- Kayamori Foundation of Informational Science Advancement
- Tateisi Science and Technology Foundation
- Matsuo Foundation for Science Promotion
- Yashima Environment Technology Foundation
- Kanagawa Institute of Industrial Science and Technology
- Foundation for the Promotion of Ion Engineering
- Fuji Seal Foundation
- Hattori Hokokai Foundation
- Thermal and Electric Energy Technology Foundation
- Iwatani Naoji Foundation
- Murata Science Foundation
- Tokuyama Science Foundation
- Telecommunications Advancement Foundation
- Amano Institute of Technology
- TEPCO Memorial Foundation
- Kajima Foundation
- Japan Society for the Promotion of Science
- Japan Science and Technology Agency
- JST-Mirai Program
- ACT-X