title: [Investigation on the photoconductive properties of MEH-PPV/CdSe nanocomposite devices].
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.
authors.affiliation: Institute of Optoelectronic Technology and Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China.
authors.forename: Ai-wei
authors.initials: AW
authors.lastname: Tang
authors.forename: Feng
authors.initials: F
authors.lastname: Teng
authors.forename: Yin-hao
authors.initials: YH
authors.lastname: Gao
authors.forename: Hui
authors.initials: H
authors.lastname: Jin
authors.forename: Chun-jun
authors.initials: CJ
authors.lastname: Liang
authors.forename: Zheng
authors.initials: Z
authors.lastname: Xu
authors.forename: Yong-sheng
authors.initials: YS
authors.lastname: Wang