Article ; Online: Ultraflexible Wireless Imager Integrated with Organic Circuits for Broadband Infrared Thermal Analysis.
Advanced materials (Deerfield Beach, Fla.)
2024 Volume 36, Issue 15, Page(s) e2309864
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 ... ...
| 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. |
|---|---|
| Language | English |
| Publishing date | 2024-01-18 |
| Publishing country | Germany |
| Document type | Journal Article |
| ZDB-ID | 1474949-X |
| ISSN | 1521-4095 ; 0935-9648 |
| ISSN (online) | 1521-4095 |
| ISSN | 0935-9648 |
| DOI | 10.1002/adma.202309864 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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