Study of organic thin film transistor with polymethylmethacrylate as a dielectric layer

被引：81

作者：

Huang, Tsung-Syun ^{[1
]}

Su, Yan-Kuin ^{[1
]}

Wang, Po-Cheng ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Elect Engn, Adv Opt Technol Ctr, Inst Microelect, Tainan 701, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 09期

关键词：

D O I：

10.1063/1.2775333

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The properties of pentacene-based organic thin film transistors (OTFTs) with polymethylmetha-crylate (PMMA) as a dielectric layer have been investigated. The concentration of PMMA was about 8 wt % with toluene as solvent. The pentacene film on PMMA dielectric layer displays high thin film quality according to results of x-ray diffraction scan and atomic force microscopy. The crystalline size was about 33.96 nm and the grain size was about 1000-1500 nm. The pentacene-based OTFTs with PMMA as a dielectric layer exhibited excellent electric characteristics, including a high mobility of 0.241 cm(2)/V s or larger, an on/off current ratio of 10(4) or larger, and the threshold voltage of less than -6.3 V.

引用

页数：3