H2O effect on the stability of organic thin-film field-effect transistors

被引：244

作者：

Qiu, Y ^{[1
]}

Hu, YC ^{[1
]}

Dong, GF ^{[1
]}

Wang, LD ^{[1
]}

Xie, JF ^{[1
]}

Ma, YN ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Chem, Organ Optoelect Lab, Beijing 100084, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 08期

关键词：

D O I：

10.1063/1.1604193

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Degradation of organic thin-film field-effect transistors (OTFTs) with pentacene as the active material has been studied. It was found that the field-effect mobility of the device decreased by 30% and the on/off current ratio decreased to one fifth after the OTFTs had been stored in atmosphere for 500 h. Through surface morphology analysis by atomic force microscopy and absorption analysis by infrared spectroscopy, it was found that the adsorption of H2O on the pentacene layer was the main reason for the degradation. Remarkable improvement in the device performance was achieved by device encapsulation with UV curable resin. (C) 2003 American Institute of Physics.

引用

页码：1644 / 1646

页数：3

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