Polymer—Fullerene Composite Solar Cells.
Polymer—Fullerene Composite Solar Cells.
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DOI：
10.1002/chin.200813244
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发表时间：
2008-03
期刊：
影响因子：
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通讯作者：
B. Thompson;J. Fréchet
中科院分区：
文献类型：
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作者：
B. Thompson;J. Fréchet
化石燃料的替代品，如太阳能，正走向各种研究领域的前沿。基于聚合物的有机光伏系统有望成为一种成本效益高、重量轻的太阳能转换平台，它可以从有源层的简单溶液处理中受益。这种激子太阳能电池的功能是基于从供体到受体的光诱导电子转移。富勒烯因其高电子亲和性和有效传输电荷的能力而成为普遍存在的受体。最有效的太阳能电池是由双连续聚合物-富勒烯复合材料制成的，也就是所谓的大块异质结。目前最好的太阳能电池的效率约为5%，因此，如果这项技术要找到可行的应用，就需要在对有源层形态和电子特性之间复杂相互作用的基本理解方面取得重大进展。
Fossil fuel alternatives, such as solar energy, are moving to the forefront in a variety of research fields. Polymer-based organic photovoltaic systems hold the promise for a cost-effective, lightweight solar energy conversion platform, which could benefit from simple solution processing of the active layer. The function of such excitonic solar cells is based on photoinduced electron transfer from a donor to an acceptor. Fullerenes have become the ubiquitous acceptors because of their high electron affinity and ability to transport charge effectively. The most effective solar cells have been made from bicontinuous polymer–fullerene composites, or so-called bulk heterojunctions. The best solar cells currently achieve an efficiency of about 5 %, thus significant advances in the fundamental understanding of the complex interplay between the active layer morphology and electronic properties are required if this technology is to find viable application.