Recombination Dynamics as a Key Determinant of Open Circuit Voltage in Organic Bulk Heterojunction Solar Cells: A Comparison of Four Different Donor Polymers

被引：349

作者：

Maurano, Andrea ^{[1
]}

Hamilton, Rick ^{[1
]}

Shuttle, Chris G. ^{[1
]}

Ballantyne, Amy M. ^{[2
]}

Nelson, Jenny ^{[2
]}

O'Regan, Brian ^{[1
]}

Zhang, Weimin ^{[1
]}

McCulloch, Iain ^{[1
]}

Azimi, Hamed ^{[3
,4
]}

Morana, Mauro ^{[3
]}

Brabec, Christoph J. ^{[3
]}

Durrant, James R. ^{[1
]}

机构：

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

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

[3] Konarka Austria, A-4040 Linz, Austria

[4] Johannes Kepler Univ Linz, Christian Doppler Lab Surface Opt, A-4040 Linz, Austria

来源：

ADVANCED MATERIALS | 2010年 / 22卷 / 44期

基金：

英国工程与自然科学研究理事会;

关键词：

ORIGIN; PERFORMANCE; MORPHOLOGY; EFFICIENCY;

D O I：

10.1002/adma.201002360

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Transient photovoltage and charge extraction analyses are employed to analyze charge carrier densities and bimolecular recombination dynamics in organic polymer: fullerene solar cells under open circuit operating conditions, employing four different donor polymers. An equation that allows us to calculate the device V-OC from these kinetic measurements is derived. This equation allows us to calculate the voltage output of devices within +/- 25 meV of directly measured values. This analysis thus allows us to relate the device open circuit voltage directly to the kinetics of bimolecular recombination, and thereby the influence of nanomorphology upon device voltage output.

引用

页码：4987 / +

页数：7

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