Zinc tin oxide transistors on flexible substrates

被引:40
作者
Jackson, W. B.
Herman, G. S.
Hoffman, R. L.
Taussig, C.
Braymen, S.
Jeffery, F.
Hauschildt, J.
机构
[1] Hewlett Packard Corp, Div Res, Palo Alto, CA 94304 USA
[2] Hewlett Packard Corp, Corvallis, OR 97330 USA
[3] Iowa Thin Film, Boone, IA 50036 USA
关键词
amorphous semiconductors; thin film transistors; sputtering;
D O I
10.1016/j.jnoncrysol.2005.11.080
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Flexible transistors were fabricated by sputter deposition of zinc tin oxide (ZTO) onto plasma-enhanced chemical vapor deposited gate dielectrics formed on flexible polyimide substrates with aluminum gate electrodes. Using output characteristics, the contact resistance of Al/ZTO contacts was found to be in the range of 100 k Omega causing significant on-current degradation. ZTO transistors with indium tin oxide (ITO) contacts exhibited high on-currents of 1.5 mA, on/off ratios of 10(6), subthreshold voltage slopes of 1.6 V/decade, threshold voltages of -8.8 V, and mobilities of 14 cm(2) V-1 s(-1). Capacitance measurements are shown to be useful for assessing contact resistance. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:1753 / 1755
页数:3
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