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When Function Follows Form: Effects of Donor Copolymer Side Chains on Film Morphology and BHJ Solar Cell Performance
Author(s) -
Szarko Jodi M.,
Guo Jianchang,
Liang Yongye,
Lee Byeongdu,
Rolczynski Brian S.,
Strzalka Joseph,
Xu Tao,
Loser Stephen,
Marks Tobin J.,
Yu Luping,
Chen Lin X.
Publication year - 2010
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.201002687
Subject(s) - stacking , copolymer , materials science , chain (unit) , set (abstract data type) , function (biology) , polymer , side chain , scattering , key (lock) , polymer science , chemical engineering , computer science , optics , composite material , organic chemistry , physics , chemistry , astronomy , evolutionary biology , biology , programming language , computer security , engineering
Detailed structural organization in organic films are investigated using grazing incidence X‐ray scattering (GIXS) methods. The key structural features are revealed and the influence of specific side chain positions and shapes are characterized. A correlation between the fill factor (FF) of the corresponding device and the tightness of the polymer chain stacking inspires a new set of structural parameters for design of materials to optimize device efficiency.