Analysis of Charge Photogeneration as a Key Determinant of Photocurrent Density in Polymer: Fullerene Solar Cells

被引：54

作者：

Clarke, Tracey M. ^{[1
]}

Ballantyne, Amy ^{[2
]}

Shoaee, Safa ^{[1
]}

Soon, Ying W. ^{[1
]}

Duffy, Warren ^{[1
,3
]}

Heeney, Martin ^{[1
,3
]}

McCulloch, Iain ^{[1
,3
]}

Nelson, Jenny ^{[2
]}

Durrant, James R. ^{[1
]}

机构：

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

[2] Univ London Imperial Coll Sci Technol & Med, Dept Phys, Ctr Plast Elect, London SW7 2AZ, England

[3] Merck Chem, Southampton SO16 7QD, Hants, England

来源：

ADVANCED MATERIALS | 2010年 / 22卷 / 46期

基金：

英国工程与自然科学研究理事会;

关键词：

BLEND FILMS; DEPENDENCE; EFFICIENCY;

D O I：

10.1002/adma.201002357

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Charge Photogeneration: The correlation between the efficiency of photogeneration of dissociated polarons and photocurrent densities for organic solar cells based on polymer: fullerene blend films is investigated. Optical assays of polaron yield measured in films without electrodes show a remarkably clear correlation with short circuit density and quantum yield measured in complete devices. For the blend films studied herein, the primary determinant of photocurrent generation is the efficiency of dissociation of photogenerated charges away from the polymer/fullerene interface and the primary loss pathway is geminate recombination.

引用

页码：5287 / 5291

页数：5

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