Title |
Ionic thermoelectric gating organic transistors
|
---|---|
Published in |
Nature Communications, January 2017
|
DOI | 10.1038/ncomms14214 |
Pubmed ID | |
Authors |
Dan Zhao, Simone Fabiano, Magnus Berggren, Xavier Crispin |
Abstract |
Temperature is one of the most important environmental stimuli to record and amplify. While traditional thermoelectric materials are attractive for temperature/heat flow sensing applications, their sensitivity is limited by their low Seebeck coefficient (∼100 μV K(-1)). Here we take advantage of the large ionic thermoelectric Seebeck coefficient found in polymer electrolytes (∼10,000 μV K(-1)) to introduce the concept of ionic thermoelectric gating a low-voltage organic transistor. The temperature sensing amplification of such ionic thermoelectric-gated devices is thousands of times superior to that of a single thermoelectric leg in traditional thermopiles. This suggests that ionic thermoelectric sensors offer a way to go beyond the limitations of traditional thermopiles and pyroelectric detectors. These findings pave the way for new infrared-gated electronic circuits with potential applications in photonics, thermography and electronic-skins. |
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