CUED Publications database

Printed subthreshold organic transistors operating at high gain and ultralow power

Jiang, C and Choi, HW and Cheng, X and Ma, H and Hasko, D and Nathan, A (2021) Printed subthreshold organic transistors operating at high gain and ultralow power. Science, 363. pp. 1-12. ISSN 0036-8075

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Abstract

Overcoming the trade-offs between power consumption, fabrication-cost and signal-amplification has been a long-standing question for wearable electronics. We report a high-gain, fully inkjet-printed Schottky-barrier organic thin-film transistor amplifier circuit. The transistor signal amplification efficiency is 38.2 siemens per ampere, which is near the theoretical thermionic limit and an ultralow power consumption of <1 nanowatt. The use of a Schottky-barrier for the source gave the transistor geometry-independent electrical characteristics and accommodated the large dimensional-variation in inkjet-printed features. These transistors demonstrated good reliability with negligible threshold-voltage shift. We demonstrate this capability with an ultralow-power high-gain amplifier for the detection of electrophysiological signals and showed a signal-to-noise ratio >60 decibels and noise voltage <0.3 microvolt per hertz at 100 hertz. 1/2

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 10 Feb 2021 21:28
Last Modified: 13 Apr 2021 07:23
DOI: doi:10.17863/CAM.36798