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Effect of pH Value on the Properties of SnO2 Nano-Cystalline for Dye Sensitized Solar Cells

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Abstract:

The study of dye-sensitized solar cells (DSCs) based on nanocrystalline films of high band gap semiconductors is a progressive field of research that is being carried out by scientists in a wide range of laboratories. To improve the conversion efficiency of the DSCs, the SnO2 nanorots photocurrent is prepared via the hydrothermal method, and characterized by XRD, FESEM, BET and Absorption spectrum. Though analysis the results, the conclusion is shown the pure SnO2 is preparation, the SnO2 nanocrystalline both shows the single phase that SnO2 from the sule solution to kalin solution. The prepared SnO2 nanocrystalline under pH=3 shows the particle-shape crystalline, the surface area of SnO2 nanocrystalline is 86.3412m2/g. The prepared SnO2 nanocrystalline under pH=7 shows the short rod-shape crystalline, the surface area of SnO2 nanocrystalline is 58.3408m2/g. The absorbance of SnO2 nanocrystalline shows the strong absorption in the ultraviolet ray range, the absorbance of synthesized SnO2 nanocrystalline under pH=11 shows the highest value.

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Periodical:

Key Engineering Materials (Volume 633)

Pages:

273-276

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.633.273

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Online since:

November 2014

Authors:

Jie Guang Song*, Lin Hua, Qiang Shen, Fang Wang, Lian Meng Zhang

Keywords:

Dye-Sensitized Solar Cell, Hydrothermal Method, pH Value, SnO2

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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