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Porphyrin‐Incorporated 2D D–A Polymers with Over 8.5% Polymer Solar Cell Efficiency
Author(s) -
Chao YIHsiang,
Jheng JyunFong,
Wu JhongSian,
Wu KuanYi,
Peng HsihHao,
Tsai MingChi,
Wang ChinLi,
Hsiao YenNi,
Wang ChienLung,
Lin ChingYao,
Hsu ChainShu
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201401345
Subject(s) - porphyrin , materials science , energy conversion efficiency , polymer , open circuit voltage , copolymer , polymer solar cell , nanotechnology , optoelectronics , voltage , electrical engineering , photochemistry , composite material , chemistry , engineering
A copolymerization strategy is developed to utilize porphyrin as a complementary light‐harvesting unit (LHU) in D–A polymers. For polymer solar cells (PSCs), the presence of LHUs increases the short‐circuit current density (J sc ) without sacrificing the open‐circuit voltage (V oc ) and fill factor (FF). Up to 8.0% power conversion efficiency (PCE) is delivered by PPor‐2:PC 71 BM single‐junction PSCs. A PCE of 8.6% is achieved when a C‐PCBSD cathodic interlayer is introduced.