Charge accumulation dynamics in organic thin film transistors

被引:8
作者
Chen, X. Y. [1 ]
Zhu, H. [1 ]
Wang, S. D. [1 ]
机构
[1] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
FIELD-EFFECT TRANSISTORS;
D O I
10.1063/1.3526374
中图分类号
O59 [应用物理学];
学科分类号
摘要
We have developed a transient current model to quantitatively describe the charge accumulation dynamics in organic thin film transistors. This model indicates that the charge accumulation process is faster at higher gate bias and/or higher field-effect mobility, and the experimental results are consistent with the theoretical expectations. A strong gate bias dependence of the field-effect mobility is observed, which suggests that the charge traps in the charge accumulation layer may limit the device performance not only at steady state but also at transient state. (C) 2010 American Institute of Physics. [doi:10.1063/1.3526374]
引用
收藏
页数:3
相关论文
共 13 条
[1]   High-Performance Organic Field-Effect Transistors [J].
Braga, Daniele ;
Horowitz, Gilles .
ADVANCED MATERIALS, 2009, 21 (14-15) :1473-1486
[2]   A scanning Kelvin probe study of charge trapping in zone-cast pentacene thin film transistors [J].
Hallam, T. ;
Duffy, C. M. ;
Minakata, T. ;
Aando, M. ;
Sirringhaus, H. .
NANOTECHNOLOGY, 2009, 20 (02)
[3]   Extracting parameters from the current-voltage characteristics of field-effect transistors [J].
Horowitz, G ;
Lang, P ;
Mottaghi, M ;
Aubin, H .
ADVANCED FUNCTIONAL MATERIALS, 2004, 14 (11) :1069-1074
[4]   Organic thin-film transistors [J].
Klauk, Hagen .
CHEMICAL SOCIETY REVIEWS, 2010, 39 (07) :2643-2666
[5]   Conducting channel formation and annihilation in organic field-effect structures [J].
Liang, Yan ;
Frisbie, C. Daniel ;
Chang, Hsiu-Chuang ;
Ruden, P. Paul .
JOURNAL OF APPLIED PHYSICS, 2009, 105 (02)
[6]   Studying Transient Carrier Behaviors in Pentacene Field Effect Transistors Using Visualized Electric Field Migration [J].
Manaka, Takaaki ;
Liu, Fei ;
Weis, Martin ;
Iwamoto, Mitsumasa .
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (23) :10279-10284
[7]   Charge trapping induced current instability in pentacene thin film transistors: Trapping barrier and effect of surface treatment [J].
Miyadera, T. ;
Wang, S. D. ;
Minari, T. ;
Tsukagoshi, K. ;
Aoyagi, Y. .
APPLIED PHYSICS LETTERS, 2008, 93 (03)
[8]   Trap elimination and injection switching at organic field effect transistor by inserting an alkane (C44H90) layer [J].
Ogawa, Satoshi ;
Kimura, Yasuo ;
Niwano, Michio ;
Ishii, Hisao .
APPLIED PHYSICS LETTERS, 2007, 90 (03)
[9]   Thin-Film Transistors [J].
Street, Robert A. .
ADVANCED MATERIALS, 2009, 21 (20) :2007-2022
[10]   Contact-metal dependent current injection in pentacene thin-film transistors [J].
Wang, S. D. ;
Minari, T. ;
Miyadera, T. ;
Tsukagoshi, K. ;
Aoyagi, Y. .
APPLIED PHYSICS LETTERS, 2007, 91 (20)