制备的薄膜晶体管均表现出了良好的开关特性。其中采用AZO为电极的薄膜晶体管的场效应迁移率为1.95 cm
2
/V·s
开关比为4.53×10
5
在正向偏压应力测试下
阈值电压的漂移量为4.49 V。
Abstract
Amorphous InGaZnO thin film transistors with bottom gate structure using transparent materials ITO and AZO as drain/source electrodes were fabricated by RF sputtering at room temperature. It was found that the fabricated TFTs exhibited good performance. For TFTs with AZO as electrodes
field effect mobility of 1.95 cm
2
/V穝
and on-off ratio of 4.53?10
5
as well as a threshold voltage shift of 4.49 V under positive bias stressing were achieved.
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