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Study of Nanocrystalline ZnO and Zn2TiO4 Film Electrode with ZnPc Dye and PbS Quantum Dots Composite Sensitization

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Abstract:

Nanocrystalline ZnO and Zn2TiO4 porous film electrodes were prepared by sol-gel method and spin coating method, and the nanocrystalline porous films were characterized by XRD and SEM. Using ZnPc dye and PbS quantum dots as sensitizers. The nanocrystalline film electrodes of ZnO series and Zn2TiO4 series were prepared separately, and their absorption characteristics observed by UV-vis spectrophotometer. The results showed that ZnPc dye and PbS quantum dots could well sensitize the film electrodes, and the effect of ZnPc dye and PbS quantum dots composite sensitization was optimal. Then, the solar cells were fabricated. In simulation sunlight, the overall photoelectric conversion efficiency by Zn2TiO4/Q-PbS/ZnPc electrode increased by 22%, relative to the ZnO/Q-PbS/ZnPc electrode’s.

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Info:

Periodical:

Advanced Materials Research (Volumes 287-290)

Pages:

2217-2220

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.287-290.2217

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Online since:

July 2011

Authors:

Qing Wang, Xiao Nan Zhang, Xiao Di Huo, Ren Hui Zhang, Jian Feng Dai

Keywords:

Nanocrystalline Film Electrode, PbS Quantum Dots, Sol-Gel (SG), Zinc Oxide (ZnO), Zn2TiO4, Znpc Dye

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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