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Flexible Organic Tribotronic Transistor for Pressure and Magnetic Sensing

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posted on 03.11.2017, 00:00 by Junqing Zhao, Hang Guo, Yao Kun Pang, Fengben Xi, Zhi Wei Yang, Guoxu Liu, Tong Guo, Guifang Dong, Chi Zhang, Zhong Lin Wang
Flexible electronics has attracted enormous interest in wearable electronics and human–machine interfacing. Here, a flexible organic tribotronic transistor (FOTT) without a top gate electrode has been demonstrated. The FOTT is fabricated on a flexible polyethylene terephthalate film using the p-type pentacene and poly­(methyl methacrylate)/Cytop composites as the conductive channel and dielectric layer, respectively. The charge carriers can be modulated by the contact electrification between the dielectric layer and a mobile triboelectric layer. Based on the fabricated FOTT, pressure and magnetic sensors have been developed, respectively, that exhibit great sensitivity, fast response time, and excellent stability. The FOTT in this simple structure shows bright potentials of tribotronics in human–machine interaction, electronic skins, wearable electronics, intelligent sensing, and so on.

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