Zinc-doping Effects on the Trap State Distribution and Charge Recombination in the Anode of TiO2 Dye-sensitized Solar Cells

doi:10.7503/cjcu20120159

Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (2): 418.doi: 10.7503/cjcu20120159

• Physical Chemistry • Previous Articles Next Articles

Zinc-doping Effects on the Trap State Distribution and Charge Recombination in the Anode of TiO₂ Dye-sensitized Solar Cells

ZHANG Pan-Pan¹, ZHU Feng², AI Xi-Cheng¹, FU Li-Min¹, XU Dong-Sheng², ZHANG Jian-Ping²

1. Department of Chemistry, Renmin University of China, Beijing 100872, China;
2. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Received:2012-02-28 Online:2013-02-10 Published:2013-01-21

Abstract

Abstract:

By measuring the photo-voltage and photo-current transients, the charge recombination and transporting dynamics in a series of zinc-doped titania based dye-sensitized solar cells(DSCs) were investigated. Based on the electron recombination and charge collection time constants, zinc-doping effects to the conduction band levels and the trap state distribution of anode were found. The results show that the zinc-doping enhanced the open-circuit voltage of DSCs by raising the conduction band levels and elongating the electron recombination time constants.

Key words: Doping, Trap state distribution, Charge transport, Charge recombination, Dye-sensitized solar cells

CLC Number:

O646

TrendMD:

ZHANG Pan-Pan, ZHU Feng, AI Xi-Cheng, FU Li-Min, XU Dong-Sheng, ZHANG Jian-Ping. Zinc-doping Effects on the Trap State Distribution and Charge Recombination in the Anode of TiO₂ Dye-sensitized Solar Cells[J]. Chem. J. Chinese Universities, 2013, 34(2): 418.

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Zinc-doping Effects on the Trap State Distribution and Charge Recombination in the Anode of TiO₂ Dye-sensitized Solar Cells

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