Improvement of photovoltages in organic dye-sensitized solar cells by Li intercalation in particulate TiO2 electrodes

被引:27
作者
Harima, Y. [1 ]
Kawabuchi, K.
Kajihara, S.
Ishii, A.
Ooyama, Y.
Takeda, K.
机构
[1] Hiroshima Univ, Grad Sch Engn, Higashihiroshima 7398527, Japan
[2] Hiroshima Univ, Grad Sch Biosphere Sci, Higashihiroshima 7398528, Japan
关键词
D O I
10.1063/1.2711659
中图分类号
O59 [应用物理学];
学科分类号
摘要
Photovoltages of nanoporous TiO2 solar cells sensitized by organic dyes are found to be improved by up to 200 mV with a negligible decrease in photocurrent by treating TiO2 electrodes with intercalation of Li. The enhancement in photovoltage is explained in terms of the formation of a dipole layer due to adsorption of Li ions on the TiO2 surface generated by the reaction of intercalated Li atoms with moisture in air. (c) 2007 American Institute of Physics.
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页数:3
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