Rubrene thin-film transistors with crystalline and amorphous channels

被引:48
作者
Park, Se-W. [1 ]
Hwang, Jung Min [1 ]
Choi, Jeong-M. [1 ]
Hwang, D. K. [1 ]
Oh, M. S. [1 ]
Kim, Jae Hoon [1 ]
Ima, Seongil [1 ]
机构
[1] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea
关键词
D O I
10.1063/1.2723656
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors report on the fabrication of rubrene organic thin-film transistors (OTFTs) with crystalline and amorphous channels, which were achieved by patterning a rubrene thin film deposited under a specific condition. The deposited film was mostly covered by amorphous rubrene matrix with smooth surface except many crystalline rubrene disks embedded with rough surface. When the channel of OTFT covers some portion of crystalline disks, the OTFT displayed a typical field effect behavior while it showed little drain current with the channel covered with amorphous background. Typical field mobility obtained from OTFT with crystalline disks was 1.23x10(-4) cm(2)/V s with an on/off current ratio of similar to 10(3). (c) 2007 American Institute of Physics.
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页数:3
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