Transparent Al-Zn-Sn-O thin film transistors prepared at low temperature

被引:139
作者
Cho, Doo-Hee
Yang, Shinhyuk [1 ]
Byun, Chunwon [1 ]
Shin, Jaeheon [1 ]
Ryu, Min Ki [1 ]
Park, Sang-Hee Ko [1 ]
Hwang, Chi-Sun [1 ]
Chung, Sung Mook [1 ]
Cheong, Woo-Seok [1 ]
Yoon, Sung Min [1 ]
Chu, Hye-Yong [1 ]
机构
[1] ETRI, Transparent Elect Team, Taejon 305350, South Korea
关键词
D O I
10.1063/1.2998612
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have fabricated transparent bottom gate thin film transistors (TFTs) using Al-doped zinc tin oxide (AZTO) as active layers. The AZTO active layer was deposited by rf magnetron sputtering at room temperature. The AZTO TFT showed good TFT performance without postannealing. The field effect mobility and the subthreshold swing were improved by postannealing below 180 degrees C. The AZTO TFT exhibited a field effect mobility (mu(FET)) of 10.1 cm(2)/V s, a turn-on voltage (V-on) of 0.4 V, a subthreshold swing (S/S) of 0.6 V/decade, and an on/off ratio (I-on/I-off) of 10(9). (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2998612]
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页数:3
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