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Side-Chain Tunability via Triple Component Random Copolymerization for Better Photovoltaic Polymers
被引:83
|作者:
Chang, Wei-Hsuan
[1
,2
]
Gao, Jing
[1
]
Dou, Letian
[1
,2
]
Chen, Chun-Chao
[1
]
Liu, Yongsheng
[1
,2
]
Yang, Yang
[1
,2
]
机构:
[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Calif Nano Syst Inst, Los Angeles, CA 90095 USA
关键词:
side-chains;
triethylene glycol;
triple component;
conjugated polymers;
solar cells;
LOW-BANDGAP POLYMERS;
SOLAR-CELLS;
CHARGE-TRANSPORT;
TANDEM POLYMER;
GAP POLYMERS;
EFFICIENCY;
DONOR;
PERFORMANCE;
MOBILITIES;
JUNCTION;
D O I:
10.1002/aenm.201300864
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:
Using a triple component random copolymerization approach, the amount of triethylene glycol (TEG) side chain, which can be regarded as a stack-inducing agent, is introduced precisely into a given polymer backbone. TEG side chains result in a more favorable morphology in a polymer:fullerene blend. Based on the low-bandgap photovoltaic polymer PBDTT-DPP (PBD), this methodology can bring a 10% overall improvement in power conversion efficiency (PCE). © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页数:6
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