Process optimization of organic thin-film transistor by ink-jet printing of DH4T on plastic

被引:40
作者
Song, Dae Ho [1 ]
Choi, Min Hee
Kim, June Young
Jang, Jin
Kirchmeyer, S.
机构
[1] Kyung Hee Univ, Adv Display Res Ctr, Seoul 130701, South Korea
[2] HC Starck GMBH, D-51368 Leverkusen, Germany
关键词
D O I
10.1063/1.2437684
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors studied the organic thin-film transistor (OTFT) with a solution based dihexylquaterthiophene (DH4T) by ink-jet printing. The DH4T with 1.0 wt % solution in dichlorobenzene was used for printing of an active layer of OTFTs. In order to obtain a smooth and uniform film of DH4T, the substrate temperature was elevated to 60 degrees C and the printing was performed by an overlapping method. The OTFT on plastic exhibited an on/off current ratio of similar to 10(7), a threshold voltage of -0.25 V, a gate voltage swing of 0.45 V/decade, and a field-effect mobility of 0.043 cm(2)/V s in the saturation region.
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页数:3
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