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MoS 2 Tribotronic Transistor for Smart Tactile Switch
Author(s) -
Xue Fei,
Chen Libo,
Wang Longfei,
Pang Yaokun,
Chen Jian,
Zhang Chi,
Wang Zhong Lin
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201504485
Subject(s) - triboelectric effect , materials science , transistor , nanogenerator , optoelectronics , interfacing , diode , voltage , electrical engineering , field effect transistor , computer science , piezoelectricity , computer hardware , composite material , engineering
A novel tribotronic transistor has been developed by vertically coupling a single‐electrode mode triboelectric nanogenerator and a MoS 2 field effect transistor. Once an external material contacts with or separates from the device, negative charges are induced by triboelectrification on the surface of the polymer frictional layer, which act as a “gate” voltage to modulate the carrier transport in the MoS 2 channel instead of the conventional applied gate voltage; the drain‐source current can be tuned in the range of 1.56–15.74 μA, for nearly ten times. The application of this MoS 2 tribotronic transistor for the active smart tactile switch is also demonstrated, in which the on/off ratio can reach as high as ≈16 when a finger touches the device and the increased drain‐source current is sufficient to light two light‐emitting diodes. This work may provide a technique route to utilize the 2D materials based tribotronic transistors in MEMS, nanorobotics, and human–machine interfacing.