Theelucidation of the relationship between structures and functions of bulkhetero thin films prepared by photoprecursor method

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In order to confirm therelevance of the photoprecursor method, the preparation procedure of organic field effect transistor (OFET)devices of pentacene by the solution processof the photoprecursor of pentacene (PDK) followed by the photoirradiationwas optimized. The best FET mobility was 0.86 cm2V-1s-1, which is one of the best perforamance of pentacene prepared by the thermal-or photo-precursor methods. Furthermore a various new acene filmswereprepared usingthe photoprecursor method andthe correlation between the compound structures, the film structures, and the photovoltaic performances were investigated in detail.