Preparation and Photoelectric Properties of Spinel MCr2O4 (M = Cu, Ni) Nanopowders

Zhi Qiang Hu; Ying Qin; Xian Qing Liu; Shang Ru Zhai; Hong Gao

doi:10.4028/www.scientific.net/AMR.415-417.1594

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 415-417Preparation and Photoelectric Properties of Spinel...

Preparation and Photoelectric Properties of Spinel MCr₂O₄ (M = Cu, Ni) Nanopowders

Abstract:

Spinel MCr₂O₄(M = Cu, Ni) nanopowders were synthesized by co-precipitation technique from alcohol-aqueous system and the performance of MCr₂O₄/TiO₂ composite film electrodes was studied. The synthesized MCr₂O₄ nanopowders were characterized by X-ray diffraction (XRD) and UV-vis diffuse reflectance spectrum (UV-vis). The MCr₂O₄ nanopowders were doped into nanocrystalline semiconductor oxide film electrode of DSSCs and the influence of doping content was investigated. Compared with the pure TiO₂ film electrode, the absorbance of different MCr₂O₄/TiO₂ composite film electrode increased significantly. Furthermore, the light respondence of CuCr₂O₄/TiO₂ composite electrode was better than NiCr₂O₄/TiO₂ composite electrode. When the content of CuCr₂O₄ 2%, the photoelectric conversion efficiency increased by 54%, and doping 1% NiCr₂O₄ nanopowders, the photoelectric conversion efficiency was improved 30%.

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Periodical:

Advanced Materials Research (Volumes 415-417)

Pages:

1594-1598

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.415-417.1594

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Online since:

December 2011

Authors:

Zhi Qiang Hu, Ying Qin, Xian Qing Liu, Shang Ru Zhai, Hong Gao

Keywords:

Dye Sensitized Solar Cell (DSSC), Photocurrent-Voltage Characteristics, Spinel

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