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  • Title: [Investigation on the photoconductive properties of MEH-PPV/CdSe nanocomposite devices].
    Author: Tang AW, Teng F, Gao YH, Jin H, Liang CJ, Xu Z, Wang YS.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2006 Dec; 26(12):2169-72. PubMed ID: 17361701.
    Abstract:
    Photoconductive properties of the composite devices made up of cadmium selenide nanocrystals and polymer poly[2-methoxy-5-(2'-ethylhexyloxy-p-phenylenevinylene)] (MEH-PPV) were investigated. The photocurrent action spectrum for a nanocomposite device corresponded to the absorption of MEH-PPV and CdSe nanocrystals, indicating that the absorption of the CdSe nanocrystals and MEH-PPV contributed to the photocurrent. The photocurrent was attributed to the exciton dissociation and charge transfer between the interface of CdSe nanocrystals and MEH-PPV. The photocurrent action spectra of the nanocomposite device was wider than that of the pure MEH-PPV device, and the photocurrent was enhanced in comparison with the pure MEH-PPV device due to the introduction of CdSe nanocrystals.
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