On the Extraction of Charge Carrier Mobility in High-Mobility Organic Transistors

被引:184
|
作者
Uemura, Takafumi [1 ,2 ]
Rolin, Cedric [3 ]
Ke, Tung-Huei [3 ]
Fesenko, Pavlo [3 ]
Genoe, Jan [3 ]
Heremans, Paul [3 ]
Takeya, Jun [1 ,2 ]
机构
[1] Univ Tokyo, Grad Sch Frontier Sci, Dept Adv Mat Sci, Kashiwa, Chiba 2778561, Japan
[2] Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan
[3] IMEC, B-3001 Louvain, Belgium
基金
欧洲研究理事会;
关键词
THIN-FILM TRANSISTORS; CONTACT RESISTANCE; SEMICONDUCTOR; THICKNESS; INJECTION;
D O I
10.1002/adma.201503133
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Transistor parameter extraction by the conventional transconductance method can lead to a mobility overestimate. Organic transistors undergoing major contact resistance experience a significant drop in mobility upon mild annealing. Before annealing, strong field-dependent contact resistance yields nonlinear transfer curves with locally high transconductances, resulting in a mobility overestimate. After annealing, a contact resistance below 200 Omega cm is achieved, which is stable over a wide V-G range.
引用
收藏
页码:151 / +
页数:6
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