Electron Transportation in the TiO2/ZnO Film Electrodes and Application for Dye-sensitized Solar Cells

Chem. J. Chinese Universities

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Electron Transportation in the TiO₂/ZnO Film Electrodes and Application for Dye-sensitized Solar Cells

PANG Shan^{1, 2}, XIE Teng-Feng¹, ZHANG Yu¹, WEI Xiao¹, DU Zu-Liang², WANG De-Jun¹*

1. College of Chemistry, Jilin University, Changchun 130012, China;
2. Key Laboratory for Special Functional Materials, Henan University, Kaifeng 475001, China

Received:2007-06-01 Revised:1900-01-01 Online:2007-11-10 Published:2007-11-10
Contact: WANG De-Jun

Abstract

Abstract: The TiO₂ based dye-sensitized solar cells doped with different sizes of ZnO nanorods were fabricated and studied by photoelectrochemical measurements. The results show that the energy conversion efficiency of the dye-sensitized solar cells after the addition of ZnO nanorods(1%, mass fraction) was increased by 6%—20% in comparison with that without ZnO nanorods. The effect of different sizes of ZnO nanorods on the electronic transportation properties was studied in the composite semiconductor film by means of transient photovoltage technology(TPV). The result indicates that the electron diffusing velocity in N3-sensitized TiO₂/ZnO film electrode was about 1—3 order of magnitude faster than that in TiO₂ electrode. The experimental results indicate that the TiO₂/ZnO electrode can improve the electron transport, decrease the recombination, enhance V_oc, and increase efficiency of energy conversion.

Key words: Solar cell, Transient photovoltage, Electron transportation, Nanoporous film electrode

CLC Number:

O643

TrendMD:

PANG Shan^{1, 2}, XIE Teng-Feng¹, ZHANG Yu¹, WEI Xiao¹, DU Zu-Liang², WANG De-Jun¹*. Electron Transportation in the TiO₂/ZnO Film Electrodes and Application for Dye-sensitized Solar Cells [J]. Chem. J. Chinese Universities, doi: .

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Electron Transportation in the TiO₂/ZnO Film Electrodes and Application for Dye-sensitized Solar Cells

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