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Improved Performance in Polymer Solar Cells Using Mixed PC 61 BM/PC 71 BM Acceptors
Author(s) -
Ko SeoJin,
Lee Wonho,
Choi Hyosung,
Walker Bright,
Yum Seungjib,
Kim Seongbeom,
Shin Tae Joo,
Woo Han Young,
Kim Jin Young
Publication year - 2015
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201401687
Subject(s) - ternary operation , materials science , crystallinity , fullerene , polymer , binary number , energy conversion efficiency , optoelectronics , computer science , organic chemistry , arithmetic , mathematics , composite material , chemistry , programming language
A ternary blend polymer solar cell (PSC) comprising a semicrystalline polymer and two fullerene derivatives (C 60 , C 70 ) shows a substantial increase in energy conversion efficiency as compared to that of corresponding binary blend PSCs. The enhancement in device efficiency results from an increase in short‐circuit current density and a minimization of the fill factor decrease at the optimum blend ratio.