Influence of Yb-Doped Nanoporous TiO2 Films on Photovoltaic Performance of Dye-Sensitized Solar Cells

XU Wei-Wei; DAI Song-Yuan; HU Lin-Hua; LIANG Lin-Yun; WANG Kong-Jia

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Influence of Yb-Doped Nanoporous TiO2 Films on Photovoltaic Performance of Dye-Sensitized Solar Cells

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@@ Yb-doped TiO2 pastes with different Yb/TiO2 weight ratios are prepared in the sol-gel process to obtain dyesensitized solar cells (DSCs). The nanocrystalline size of Yb-TiO2 becomes smaller and the lattice parameters change. Lattice distortion is observed and dark current is detected. It is found that a part of Yb existing as insulating oxide Yb2Oa state acts as barrier layers at the electrode-electrolyte interface to suppress charge recombination. A Yb-doped TiO2 electrode applied in DSCs leads to a higher open-circuit voltage and a higher fill factor. How the Yb-doped TiO2 films affect the photovoltaic response of DSCs is discussed.

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《中国物理快报：英文版》 |2006年第8期|2288-2291|共4页
作者
XU Wei-Wei; DAI Song-Yuan; HU Lin-Hua; LIANG Lin-Yun; WANG Kong-Jia;
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作者单位

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031;

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031;

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031;

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031;

Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031;

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正文语种 chi
中图分类物理学;
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Influence of Yb-Doped Nanoporous TiO2 Films on Photovoltaic Performance of Dye-Sensitized Solar Cells

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