Electron-deficient truxenone derivatives and their use in organic photovoltaics

被引:30
作者
Nielsen, Christian B. [1 ,2 ]
Voroshazi, Eszter [3 ]
Holliday, Sarah [1 ,2 ]
Cnops, Kjell [3 ,4 ]
Cheyns, David [3 ]
McCulloch, Iain [1 ,2 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England
[2] Univ London Imperial Coll Sci Technol & Med, Ctr Plast Elect, London SW7 2AZ, England
[3] IMEC, B-3001 Heverlee, Belgium
[4] Katholieke Univ Leuven, ESAT, B-3001 Heverlee, Belgium
基金
英国工程与自然科学研究理事会;
关键词
AXIS VECTOR ANALYSIS; SOLAR-CELLS; NON-FULLERENE; ACCEPTORS; HETEROJUNCTION; MOLECULES; ORIENTATION;
D O I
10.1039/c4ta01653j
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
A series of electron-deficient truxenone derivatives are investigated as fullerene alternatives in organic photovoltaic applications. These new electron-accepting molecules have easily tunable absorption profiles, more than ten-fold higher absorptivities than PCBM, slightly higher electron affinities than PCBM and clearly defined and highly reversible reductive characteristics. Fabrication of efficient bilayer solar cells with a subphthalocyanine (SubPc) donor illustrates the promise of this class of materials as electron acceptors in organic solar cells.
引用
收藏
页码:12348 / 12354
页数:7
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