Abstract
According to high photoelectric conversion performance of quantum dot composite material,we use in situ condensation method to prepare polymer / poly( 2-methoxyl-5-octyloxy)-1,4-phenylenevinylene( MOPPV)-ZnSe quantum dot composites. X-ray diffraction,transmission electron microscope,UV-Vis absorption spectroscopy were employed to study their characteristics. The results indicate that MOPPV and ZnSe quantum dots forming a coating or mosaic structure which can be effectively combined,and ZnSe quantum dots keep good crystallinity,each with an average size of 4 nm in the composite,producing the light induced charge transfer phenomenon. The absorption spectra of the composite have a few red-shift with the increasing of the annealing temperature. The study of composite photoelectric performance indicates that it gradually shows obvious characteristic of diode,the power conversion efficiency reaches the maximum of 0. 3726% at the temperature of 160 ℃.
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