Energetic surface heterogeneity of nanocrystalline TiO2 films for dye-sensitized solar cells

被引：0
|
作者：
Jae-Wook Lee
Kyung-June Hwang
Wang-Geun Shim
Kyung-Hee Park
Hal-Bon Gu
Kyu-Hyuk Kwun
机构：
[1] Chosun University,Department of Chemical and Biochemical Engineering
[2] Seonam University,Department of Environmental and Chemical Engineering
[3] Chonnam National University,Faculty of Applied Chemical Engineering
[4] Chonnam National University,Department of Electric Engineering
来源：
Korean Journal of Chemical Engineering | 2007年 / 24卷
关键词：
Adsorption Energy Distribution Functions; Dye-sensitized Solar Cell; TiO; Film;
D O I：
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中图分类号：
学科分类号：
摘要：
Dye sensitized solar cells (DSSCs) have been receiving significant attention because they have many advantages compared to conventional organic solar cells. It has been known that the photovoltaic characteristics of DSSC are highly dependent on the adsorption properties of dyes on TiO2 films. To analyze the surface heterogeneity of TiO2 surfaces, single-phase anatase nanocrystallite titanium films were prepared by sol-gel method using the hydrolysis reaction of titanium tetraisopropoxide under acidic condition and characterized by XRD, FE-SEM and BET analysis. The adsorption energy distribution functions were calculated by the generalized nonlinear regularization method. It was found that the shape and the intensity of the adsorption energy distribution curve determined were highly related with the physical properties (i.e., geometrical heterogeneity) and chemical characteristics (i.e., energetic heterogeneity) of nanocrystalline TiO2 for DSSC.
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页码：847 / 850
页数：3
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