Characteristics of pentacene organic thin film transistor with top gate and bottom contact

被引：20
作者：
Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China [1 ]
不详 [2 ]
机构：
[1] Institute of Optoelectronic Technology, Beijing Jiaotong University
[2] Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education
来源：
Chin. Phys. | 2008年 / 5卷 / 1887-1892期
关键词：
Pentacene; Subthreshold slope; Thin-film transistor; Threshold voltage;
D O I：
10.1088/1674-1056/17/5/057
中图分类号：
学科分类号：
摘要：
High performance pentacene organic thin film transistors (OTFT) were designed and fabricated using SiO2 deposited by electron beam evaporation as gate dielectric material. Pentacene thin films were prepared on glass substrate with S-D electrode pattern made from ITO by means of thermal evaporation through self-organized process. The threshold voltage VTH was -2.75±0.1V in 0 - -50V range, and that subthreshold slopes were 0.42±0.05V/dec. The field-effect mobility (μEF) of OTFT device increased with the increase of VDS, but the μEF of OTFT device increased and then decreased with increased VGS when VDS was kept constant. When VDS was -50V, on/off current ratio was 0.48 × 105 and subthreshold slope was 0.44V/dec. The μEF was 1.10cm2/(V-s), threshold voltage was -2.71V for the OTFT device. © 2008 Chin. Phys. Soc. and IOP Publishing Ltd.
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页码：1887 / 1892
页数：5
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