Ambipolar light-emitting organic field-effect transistor
Ambipolar light-emitting organic field-effect transistor
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DOI:
10.1063/1.1785290
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发表时间:
2004-08-30
影响因子:
4
通讯作者:
Muccini, M
中科院分区:
文献类型:
--
作者:
Rost, C;Karg, S;Muccini, M
We demonstrate a light-emitting organic field-effect transistor (OFET) with pronounced ambipolar current characteristics. The ambipolar transport layer is a coevaporated thin film of alpha-quinquethiophene (alpha-5T) as hole-transport material and N,N-'-ditridecylperylene-3,4,9,10-tetracarboxylic diimide (P13) as electron-transport material. The light intensity is controlled by both the drain-source voltage V-DS and the gate voltage V-G. Moreover, the latter can be used to adjust the charge-carrier balance. The device structure serves as a model system for ambipolar light-emitting OFETs and demonstrates the general concept of adjusting electron and hole mobilities by coevaporation of two different organic semiconductors. (C) 2004 American Institute of Physics.