Photocurrents in double-layer organic field-effect transistors

Ján Jakabovič,Martin Weis,Jaroslav Kováč,Daniel Donoval,Martin Donoval,Július I. Cirák,Yingquan Peng,Jipeng Xie,Wenli Lv,Ting Yang,Bo Yao,Ying Wang

Advanced Semiconductor Devices & Microsystems（2012）

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Abstract

Photogenerated carriers in active double-layer 3,4,9,10-perylenetetracarboxylic dianhydride/copper phthalocyanine (PTCDA/CuPc) organic field-effect transistor (OFET) has been investigated. The PTCDA and CuPc layers have n- and p-type conductivities, respectively; thus, PTCDA can be assumed as an acceptor and CuPc as a donor in the meaning of photovoltaic device. It has been found that the charges are generated in the bulk of the organic material rather than close to the organic-organic interface.

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Key words

ptcda layers,4,9,photocurrents,photogenerated carrier,copper compounds,cupc layers,organic material,active double-layer 3,p-type conductivity,photoconductivity,photovoltaic device,double-layer organic field-effect transistors,10-perylenetetracarboxylic dianhydride-copper phthalocyanine organic field-effect transistor,organic field effect transistors,semiconductor thin films,n-type conductivity,organic-organic interface,organic semiconductors

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