Controlling Adsorption Structure of Dye on Nanocrystalline TiO2 Films for Improved Photovoltaic Perf

来源 :International Conference on Nanoscience & Technology,China 2 | 被引量 : 0次 | 上传用户：snowbar

【摘要】

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【作者】

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Fan Zhang Feng Shi Wei Ma Yang Jiao Sheng Meng

【机构】

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Beijing National Laboratory for Condensed Matter Physics,and Institute of Physics,Chinese Academy of

【出处】

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International Conference on Nanoscience & Technology,China 2

【发表日期】

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2013年3期

【关键词】

：

dyes dye-sensitized solar cells adsorption structure controlling improved photov

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　　Dye adsorption configuration on TiO2 surface is a key factor in dye-sensitized solar cells (DSSC).We find that adsorption structure of dyes on nanoerystalline TiO2 can be manipulated.Switch of binding modes has been observed and confirmed by Raman and infrared spectroscopy measurements, with vibration peaks assigned using density functional theory calculations.Photovoltaic measurements on the fabricated DSSCs indicate that energy conversion efficiency is enhanced by controlling molecular adsorption configuration of dyes.This opens a new avenue to improving photovoltaic performance by suppressing unfavorable adsorption configurations in dye solar cell devices.

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