All-organic solution-processed two-terminal transistors fabricated using the photoinduced p-channels

被引:19
作者
Chung, Dae Sung [1 ]
Yun, Won Min [1 ]
Nam, Sooji [1 ]
Kim, Se Hyun [1 ]
Park, Chan Eon [1 ]
Won Park, Jong [2 ,3 ]
Kwon, Soon-Ki [2 ,3 ]
Kim, Yun-Hi [4 ]
机构
[1] Pohang Univ Sci & Technol, Polymer Res Inst, Dept Chem Engn, Pohang 790784, South Korea
[2] Gyeongsang Natl Univ, Sch Nano & Adv Mat, Jinju 660701, South Korea
[3] Gyeongsang Natl Univ, Engn Res Inst, Jinju 660701, South Korea
[4] Gyeongsang Natl Univ, Dept Chem, Chinju 660701, South Korea
关键词
electrodes; organic compounds; organic semiconductors; phototransistors; space-charge limited devices; field effect transistors; FIELD-EFFECT TRANSISTORS; MOBILITY; PHOTOTRANSISTORS; ANTHRAZEN; POLYMERS;
D O I
10.1063/1.3062852
中图分类号
O59 [应用物理学];
学科分类号
摘要
All-organic solution-processed two-terminal transistors were fabricated by replacing the "field-induced p-channel" of an organic field-effect transistor with a "photoinduced p-channel." A simple device structure-containing solution-processed 2,6-di(naphthalene-2-yl)-9,10-bis(triisopropylsilylethynyl)anthracene single crystals as the active layer (on a plastic substrate) and poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) as source and drain electrodes-enabled high-performance photosensor (and even transistor) behavior, showing pseudo-output and transfer curves with an on/off ratio of 5x10(2). We explain this photogenerated p-channel effect using Helfrich's theory, which describes the photodetrapping behavior of a space-charge-limited current under illumination.
引用
收藏
页数:3
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