Single- and double-layered mesoporous TiO2/P25 TiO2 electrode for dye-sensitized solar cell

被引：68

作者：

Ngamsinlapasathian, S ^{[1
]}

Sreethawong, T ^{[1
]}

Suzuki, Y ^{[1
]}

Yoshikawa, S ^{[1
]}

机构：

[1] Kyoto Univ, Inst Adv Energy, Uji, Kyoto 6110011, Japan

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2005年 / 86卷 / 02期

关键词：

surfactant-assisted templating method; mesoporous titania; dye-sensitized solar cell; sintering temperature;

D O I：

10.1016/j.solmat.2004.06.010

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Nanocrystalline mesoporous titania (MP-TiO2) was synthesized by surfactant-assisted templating method using tetraisopropyl orthotitanate modified with acetylacetone and laurylamine hydrochloride as template. The short-circuit photocurrent density (J(SC)) of the cell made from MP-TiO2 was much higher than that of the cell made from commercial P25 titania. The incident photon to current conversion efficiency (IPCE) spectra of thin MP-TiO2 Cell were higher than that of thick P25 cell in the region between 400 and 475 nm but lower than that of thick P25 cell in the red region, because the thickness of thin transparent MP-TiO2 film was not enough to scatter the light leading to low absorbed spectra in red region. IPCE spectra of MP-TiO2 can be improved by using the cell made from blended MP-TiO2 with P25. The cell performance was improved with increasing sintering temperature. Double-layered titania cells were also fabricated to further improve the cell performance by increasing light scattering and amount of adsorbed dye. The solar energy conversion efficiency (eta) up to 8.1% was obtained by using the double-layered titania cell sintered at 450 degreesC for 2 h. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：269 / 282

页数：14

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