Characterization on Improved Effective Mobility of Pentacene Organic Field-Effect Transistors Using Graphene Electrodes

被引:5
作者
Lee, Sangchul [1 ]
Jo, Gunho [2 ]
Kang, Seok-Ju [3 ]
Park, Woojin [3 ]
Kahng, Yung Ho [4 ]
Kim, Dong-Yu [1 ,3 ]
Lee, Byoung Hun [1 ,3 ]
Lee, Takhee [2 ]
机构
[1] Gwangju Inst Sci & Technol, Dept Nanobio Mat & Elect, Kwangju 500712, South Korea
[2] Seoul Natl Univ, Dept Phys & Astron, Seoul 151747, South Korea
[3] Gwangju Inst Sci & Technol, Sch Mat Sci & Engn, Kwangju 500712, South Korea
[4] Gwangju Inst Sci & Technol, Res Inst Solar & Sustainable Energies, Kwangju 500712, South Korea
关键词
THIN-FILM TRANSISTORS; PATTERNED GRAPHENE; POLYMER;
D O I
10.1143/JJAP.51.02BK09
中图分类号
O59 [应用物理学];
学科分类号
摘要
Pentacene organic field-effect transistors (OFETs) with multilayer graphene (MLG) films as the source and drain electrodes were fabricated. Pentacene OFETs with MLG electrodes showed significantly enhanced electrical property compared to devices with typically used Au electrodes because MLG electrode yields lower contact resistance and lower barrier height. Specifically, the pentacene OFETs with graphene electrodes exhibited increased output current by more than tenfold, high mobility as 0.4 cm(2) V-1 s(-1), and high on/off current ratio of 10(7). Our study may be useful for the development of organic transistors that are capable of producing improved performances. (C) 2012 The Japan Society of Applied Physics
引用
收藏
页数:4
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