Structures and properties of conjugated Donor-Acceptor copolymers for solar cell applications

被引：318

作者：

Zhang, Zhi-Guo ^{[1
]}

Wang, Jizheng ^{[1
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 10期

关键词：

LOW-BANDGAP COPOLYMER; HIGH PHOTOVOLTAIC PERFORMANCE; DEEP HOMO LEVEL; D-A COPOLYMERS; SIDE-CHAIN; POLYMER; EFFICIENCY; BENZODITHIOPHENE; BITHIAZOLE; CARBAZOLE;

D O I：

10.1039/c2jm14951f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

With the rapid evolution of photovoltaic polymer materials, power conversion efficiency of polymer solar cells has been markedly improved in recent years, and is now approaching a landmark value of 10 %. This review focuses on Donor-Acceptor (D-A) photovoltaic copolymers. Starting from briefly introducing the D-A concept, the fundamental donor and acceptor units for constructing polymer photovoltaic materials are introduced and classified. By summarizing the structure-property relationships of typical photovoltaic D-A copolymers, the important design rules for such materials are highlighted. Several crucial aspects, including proper combination of D-A units, high planarity of the backbone and proper incorporation of side chains are particularly emphasized. A new D-A architecture, namely main-chain donor and side-chain acceptor is introduced and reviewed. Moreover, the role of the electron-deficient group in fine-tuning energy levels of low-bandgap D-A photovoltaic polymers is discussed.

引用

收藏

页码：4178 / 4187

页数：10

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