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Title of article :
Dye-sensitized solar cells composed of Ti1−xSnxO2 nanocrystals
Author/Authors :
Aiying Pang، نويسنده , , Yafeng Li، نويسنده , , Huixing Zhang، نويسنده , , Yangzhong Wang، نويسنده , , Mingdeng Wei، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2012
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Abstract :
Ti1−xSnxO2 nanocrystals were successfully synthesized by using a simple solvothermal route, and its band energy gap broaden and flat band potential can be rationally regulated with increasing x value. Furthermore, Ti1−xSnxO2 nanocrystals were first used as the photoelectrode material for dye-sensitized solar cells. A cell made of Ti1−xSnxO2 (x = 0.3) exhibited the best photovoltaic performance. This is due to its most narrow band gap energies, most negative flat band potential and lowest dark current densities. After the surface of Ti1−xSnxO2 (x = 0.3) electrode was treated with TiCl4 solution, the cell sensitized by a mixed solution of N719 and D131 dye exhibited the best efficiency of 4.64% under the illumination of 1 sun (AM1.5, 100 mW cm−2).
Keywords :
Photovoltaic property , Dye-sensitized solar cells , Ti1?xSnxO2 , Nanocrystal
Journal title :
Materials Chemistry and Physics
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