Transient optical studies of interfacial energetic disorder at nanostructured dye-sensitised inorganic/organic semiconductor heterojunctions

被引：62

作者：

Haque, SA

Park, T

Holmes, AB

Durrant, JR

机构：

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

[2] Univ Cambridge, Dept Chem, Melville Lab Polymer Synth, Cambridge CB2 3RA, England

来源：

CHEMPHYSCHEM | 2003年 / 4卷 / 01期

关键词：

charge transfer; interfaces; semiconductors; sensitizers; time-resolved spectroscopy;

D O I：

10.1002/cphc.200390014

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：

Broadening needs energy: Hole-transfer reactions at a dye-sensitised nanocrystalline TiO2/organic hole-conductor (HTM) interface are mainly driven by the free energy difference ΔG(dye-HTM). Inhomogeneous broadening of ΔG(dye-HTM) controls the yield of this interfacial charge-transfer reaction (see picture, curve b) and is therefore an important limitation on the voltage output of photovoltaic devices based upon such interfaces.

引用

页码：89 / +

页数：6

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[1] EMISSION LIMITED INJECTION BY THERMALLY ASSISTED TUNNELING INTO A TRAP-FREE TRANSPORT POLYMER [J].