Controlling Adsorption Structure of Eosin Y Dye on Nanocrystalline TiO2 Films for Improved Photovoltaic Performances

被引：51

作者：

Zhang, Fan

Shi, Feng

Ma, Wei

Gao, Fei

Jiao, Yang

Li, Hui

Wang, Jingchuan

Shan, Xinyan

Lu, Xinghua

Meng, Sheng ^{[1
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 28期

关键词：

SENSITIZED SOLAR-CELLS; VIBRATIONAL SPECTROSCOPY; INTERFACIAL ACTIVATION; ELECTRON INJECTION; EFFICIENCY; FLUORESCEIN; RAMAN; MOLECULES; MESOPORES; XANTHENE;

D O I：

10.1021/jp404439p

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Adsorption structure of Eosin Y dyes on nanocrystal-line TiO2 can be manipulated by adding a small fraction of water into organic electrolyte. Binding mode switching from hydrogen bonded monodentate to bidentate bridging configuration 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 dye-sensitized solar cells indicate that energy conversion efficiency is enhanced by manipulating molecular adsorption configuration of Eosin Y dyes. This opens a new avenue to improving photovoltaic performance by suppressing unfavorable adsorption configurations in dye solar cell devices.

引用

收藏

页码：14659 / 14666

页数：8

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