期刊
APPLIED PHYSICS LETTERS
卷 102, 期 23, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4811271
关键词
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资金
- Ontario Research Fund [03-021]
- NSERC
The electrical stability of hydrogenated amorphous silicon thin-film transistors (a-Si:H TFTs) on flexible substrates was characterized under mechanical bending. TFT lifetime until 50% reduction in I-DS under moderate constant-voltage gate bias (<2 MV/cm gate field for 10(4) s) was estimated to be 2.56 h and 7.43 h under uniaxial applied compression and tension, respectively, compared to 4.28 h without strain. The stretched-exponential model for V-T shift in a-Si:H TFTs was fitted to measurement data and used to predict how applied strain can affect TFT lifetime in practical applications. V-T relaxation showed a logarithmic time dependence as would be expected for dielectric/interface charge detrapping. (C) 2013 AIP Publishing LLC.
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