Charge transport properties in pentacene films: Evaluation of carrier mobility by different techniques

被引：17
作者：
Lucas, B. [1 ]
El Amrani, A.
Moliton, A. [1 ]
Skaiky, A. [1 ]
El Hajj, A. [1 ]
Aldissi, M. [2 ]
机构：
[1] Univ Limoges, CNRS, XLIM UMR 6172, F-87060 Limoges, France
[2] Fractal Syst Inc, Safety Harbor, FL 34695 USA
来源：
SOLID-STATE ELECTRONICS | 2012年 / 69卷
关键词：
Transport properties; Pentacene; Mobility; Impedance spectroscopy; Space charge limited current; TEMPERATURE; PERFORMANCE; IMPEDANCE; ALQ(3); LAYERS; PHASE;
D O I：
10.1016/j.sse.2011.12.011
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Charge carrier mobility in pentacene is determined using three different methods, the standard one being the field effect transistor (FET), and the others, not much explored in organic materials are the impedance spectroscopy and the space charge limited current (SCLC). We have found that the FET technique yields exaggerated mobility values. We have obtained a mobility of 3.5 x 10(-2) cm(2)/V s for an applied electrical field of 3 x 10(7) V/m. We have characterized the growth and structural organization of pentacene layers using AFM and X-ray diffraction measurements to support our interpretation of the transport mechanisms. (c) 2012 Elsevier Ltd. All rights reserved.
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收藏
页码：99 / 103
页数：5
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