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Piezotronic Effect in Flexible Thin‐film Based Devices
Author(s) -
Wen Xiaonan,
Wu Wenzhuo,
Ding Yong,
Wang Zhong Lin
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201300296
Subject(s) - materials science , optoelectronics , piezoresistive effect , thin film , piezoelectricity , semiconductor , flexible electronics , sensitivity (control systems) , nanotechnology , electronic engineering , composite material , engineering
Flexible piezotronic devices based on RF‐sputtered piezoelectric semiconductor thin films have been investigated for the first time . The dominating role of the piezotronic effect over the geometrical and piezoresistive effect in the as‐fabricated devices has been confirmed and the modulation effect of the piezopotential on charge carrier transport under different strains is subsequently studied. Moreover, it is also demonstrated that the UV sensing capability of the as‐fabricated thin film based piezotronic device can be tuned by the piezopotential, showing significantly enhanced sensitivity and improved reset time under tensile strain.