Influence of blend microstructure on bulk heterojunction organic photovoltaic performance

被引：491
作者：
Brabec, Christoph J. [1 ,2 ]
Heeney, Martin [3 ,4 ]
McCulloch, Iain [3 ,4 ]
Nelson, Jenny [3 ,5 ]
机构：
[1] Univ Erlangen Nurnberg, D-91058 Erlangen, Germany
[2] Bayer Zentrum Angew Energieforsch ZAE Bayern, D-91058 Erlangen, Germany
[3] Univ London Imperial Coll Sci Technol & Med, Ctr Plast Elect, London SW7 2AZ, England
[4] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England
[5] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England
来源：
CHEMICAL SOCIETY REVIEWS | 2011年 / 40卷 / 03期
基金：
英国工程与自然科学研究理事会;
关键词：
POLYMER SOLAR-CELLS; CHARGE-TRANSFER EXCITONS; OPEN-CIRCUIT VOLTAGE; MOLECULAR-WEIGHT; SPECTROSCOPIC PROPERTIES; FULLERENE DERIVATIVES; NANOSCALE MORPHOLOGY; DEVICE PERFORMANCE; SELF-ORGANIZATION; HIGHLY EFFICIENT;
D O I：
10.1039/c0cs00045k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The performance of organic photovoltaic devices based upon bulk heterojunction blends of donor and acceptor materials has been shown to be highly dependent on the thin film microstructure. In this tutorial review, we discuss the factors responsible for influencing blend microstructure and how these affect device performance. In particular we discuss how various molecular design approaches can affect the thin film morphology of both the donor and acceptor components, as well as their blend microstructure. We further examine the influence of polymer molecular weight and blend composition upon device performance, and discuss how a variety of processing techniques can be used to control the blend microstructure, leading to improvements in solar cell efficiencies.
引用
收藏
页码：1185 / 1199
页数：15
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