Acid versus base peptization of mesoporous nanocrystalline TiO2 films:: functional studies in dye sensitized solar cellst

被引：70

作者：

Hore, S

Palomares, E

Smit, H

Bakker, NJ

Comte, P

Liska, P

Thampi, KR

Kroon, JM

Hinsch, A

Durrant, JR

机构：

[1] Univ Freiburg, Freiburg Mat Res Ctr, D-79104 Freiburg, Germany

[2] Univ London Imperial Coll Sci Technol & Med, Dept Chem, Ctr Elect Mat & Devices, London SW7 2AY, England

[3] ECN Solar Energy, NL-1755 ZG Petten, Netherlands

[4] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland

[5] Fraunhofer Inst Solar Energy Syst, D-79110 Freiburg, Germany

[6] Univ Valencia, Inst Ciencia Mol, E-46100 Valencia, Spain

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2005年 / 15卷 / 03期

关键词：

D O I：

10.1039/b407963a

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：

We report an analysis of the influence of acid/base conditions employed in the synthesis of TiO2 nanoparticles upon the performance of dye sensitised photoelectrochemical solar cells fabricated from these particles. The functional properties of the TiO2 nanoparticles in these devices are investigated by potential step chronoamperometry, transient laser spectroscopy, and photovoltaic device characterisation. We find that base peptization conditions employed in the sol-gel fabrication of the TiO2 nanoparticles result in a reduction in film electron density under negative applied bias, correlated with slower interfacial recombination losses and a higher device open circuit voltage.

引用

页码：412 / 418

页数：7

共 39 条

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