Ambipolar behavior of 2,5-diphenyl-1,4-distyrylbenzene based field effect transistors: An experimental and theoretical study

Yan Wang; Liu, Dandan; Ikeda, Susumu; Kumashiro, Ryotaro; Nouch, Ryo; Xu, Yuanxiang; Hui Shang; Ma, Yuguang; Tanigaki, Katsumi
July 2010
Applied Physics Letters;7/19/2010, Vol. 97 Issue 3, p033305
Academic Journal
New organic semiconductor molecule 2,5-diphenyl-1,4-distyrylbenzene (trans-DPDSB) was synthesized and its single crystal was grown for light-emitting field effect transistors (FETs). This molecule forms J-aggregate crystals which show high luminescent efficiency compared with the corresponding H-aggregates. Although J-aggregates have a weak point of lower mobility, the FETs using trans-DPDSB single crystals and Au–Ca asymmetrical electrodes showed light emission from the channel. This study shows that the design and modification of organic molecular stacking modes are useful in realization of highly efficient light-emitting FETs.


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