Monitoring the reactivity of oxide interfaces in dye solar cells with photocurrent imaging techniques

被引：14

作者：

Junghaenel, Matthias ^{[1
]}

Tributsch, Helmut ^{[1
]}

机构：

[1] Hahn Meitner Inst Berlin GmbH, Dept Solare Energet, D-14109 Berlin, Germany

来源：

COMPTES RENDUS CHIMIE | 2006年 / 9卷 / 5-6期

关键词：

dye-sensitized solar cell; metal oxide coating;

D O I：

10.1016/j.crci.2005.02.051

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

By partially dip-coating and processing the F:SnO2 front contact so that a very thin layer of platinum or of ruthenium oxide is formed, a breakdown of solar cell efficiency is observed via photocurrent imaging techniques. This evidences that the front contact functions like a degenerate semiconductor which determines the cell photopotential. Modification of the TiO2 nanosurface with ultra thin alternative oxide layers (ZnO, Al2O3) affects both electron injection and reverse reaction and thus photoefficiency. ZnO- and Al2O3- modified TiO2 interfaces show an increased rate of sensitizer degradation. This result emphasizes the role of interfacial sensitizer bonding for long-term stability.

引用

页码：652 / 658

页数：7

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