Rational Design of Amorphous Indium Zinc Oxide/Carbon Nanotube Hybrid Film for Unique Performance Transistors
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- 作者：Xingqiang Liu ; Chunlan Wang ; Bo Cai ; Xiangheng Xiao ; Shishang Guo ; Zhiyong Fan ; Jinchai Li ; Xiangfeng Duan ; Lei Liao
- 刊名：Nano Letters
- 出版年：2012
- 出版时间：July 11, 2012
- 年：2012
- 卷：12
- 期：7
- 页码：3596-3601
- 全文大小：366K
- 年卷期：v.12,no.7(July 11, 2012)
- ISSN：1530-6992
文摘
Here we report unique performance transistors based on sol鈥揼el processed indium zinc oxide/single-walled carbon nanotube (SWNT) composite thin films. In the composite, SWNTs provide fast tracks for carrier transport to significantly improve the apparent field effect mobility. Specifically, the composite thin film transistors with SWNT weight concentrations in the range of 0鈥? wt % have been investigated with the field effect mobility reaching as high as 140 cm2/V路s at 1 wt % SWNTs while maintaining a high on/off ratio 107. Furthermore, the introduction SWNTs into the composite thin film render excellent mechanical flexibility for flexible electronics. The dynamic loading test presents evidently superior mechanical stability with only 17% variation at a bending radius as small as 700 渭m, and the repeated bending test shows only 8% normalized resistance variation after 300 cycles of folding and unfolding, demonstrating enormous improvement over the basic amorphous indium zinc oxide thin film. The results provide an important advance toward high-performance flexible electronics applications.