期刊
ADVANCED MATERIALS TECHNOLOGIES
卷 4, 期 8, 页码 -出版社
WILEY
DOI: 10.1002/admt.201900247
关键词
organic field-effect transistor; organic thermoelectric device; self-powered sensing element
资金
- National Key Research and Development Program of China [2017YFA0204703]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12030100]
- Key Research Program of Frontier Sciences, CAS [QYZDY-SSW-SLH024]
- National Natural Science Foundation [61571423]
Flexible self-powered sensing electronics are required to promote the development of wearable and portable electronics. Although self-powered sensing elements with individual devices, such as piezoelectric and thermoelectric devices, have been demonstrated, it is challenging to realize self-powered operation for most sensing applications. In this work, a flexible self-powered sensing element is developed by integrating organic-transistor-based chemical sensors with a flexible power supplier, an organic thermoelectric (OTE) generator. The constructed OTE array on a paper substrate shows a maximum open-circuit voltage of 0.52 V and a maximum power output of 0.32 mu W. Notably, the device can power organic field-effect transistor-based gas sensors with ultralow operating voltage. The integrated element shows sensitive ammonia detection behavior without an additional power supply. This work suggests that OTE devices are good candidates as flexible power sources, and can be implemented in new strategies for developing self-powered electronics through device integration.
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