期刊
ADVANCED MATERIALS
卷 30, 期 15, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201705976
关键词
conductivity; morphology characterizations; organic semiconductors; organic solar cells; self-doping
类别
资金
- Office of Naval Research, Materials Division [N00014-17-1-2244]
- U.S. Department of Energy, Office of Science [DE-AC02-76SF00515]
- U.S. Department of Energy, Office of Basic Energy [DE-AC02-76SF00515]
- [NSF-CHE1506839]
Solution-based processing of materials for electrical doping of organic semiconductor interfaces is attractive for boosting the efficiency of organic electronic devices with multilayer structures. To simplify this process, self-doping perylene diimide (PDI)-based ionene polymers are synthesized, in which the semiconductor PDI components are embedded together with electrolyte dopants in the polymer backbone. Functionality contained within the PDI monomers suppresses their aggregation, affording self-doping interlayers with controllable thickness when processed from solution into organic photovoltaic devices (OPVs). Optimal results for interfacial self-doping lead to increased power conversion efficiencies (PCEs) of the fullerene-based OPVs, from 2.62% to 10.64%, and of the nonfullerene-based OPVs, from 3.34% to 10.59%. These PDI-ionene interlayers enable chemical and morphological control of interfacial doping and conductivity, demonstrating that the conductive channels are crucial for charge transport in doped organic semiconductor films. Using these novel interlayers with efficient doping and high conductivity, both fullerene- and nonfullerene-based OPVs are achieved with PCEs exceeding 9% over interlayer thicknesses ranging from approximate to 3 to 40 nm.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据