Dependence of annealing on stability of transparent amorphous InGaZnO thin film transistor
Dependence of annealing on stability of transparent amorphous InGaZnO thin film transistor
复制标题
退火对透明非晶InGaZnO薄膜晶体管稳定性的依赖性
DOI:
10.1016/j.mssp.2013.02.013
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发表时间:
2013-10
影响因子:
4.1
通讯作者:
Zhang, Jianhua
中科院分区:
文献类型:
--
作者:
Li, Xifeng;Xin, Enlong;Chen, Longlong;Shi, Jifeng;Li, Chunya;Zhang, Jianhua
Bottom-gate transparent IGZO–TFT had been successfully fabricated at relatively low temperature (200°C). The devices annealing for 4h at 200°C exhibit good electrical properties with saturation mobility of 8.2cm2V−1s−1, subthreshold swing of 1.0V/dec and on/off current ratio of 5×106. The results revealed that the stability of TFT devices can be improved remarkably by post-annealing treatment. After applying positive gate bias stress of 20V for 5000s, the device annealing for 1h shows a larger positive Vthshift of 4.7V. However, the device annealing for 4h exhibits a much smaller Vthshift of 0.04V and more stable.
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