Abstract
The surface property of the dielectric has a significant influence on growth, morphology, order of the organic semiconductor, and charge carrier transport. The relevant research shows that the mobility of organic field-effect transistor could be effectively improved via ameliorating the surface property of the dielectric. The purpose of this review is to introduce the main factors, including the roughness and the surface energy of dielectric, which exert a tremendous influence on the field effect mobility of OFET, and chiefly describe the progress of the two common methods used for the dielectric modification, viz., the self-assembled monolayer modification and the polymer modification. Finally, the novel applications at present are summarized in this review and some perspectives on the research trend are proposed.
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