When Function Follows Form: Effects of Donor Copolymer Side Chains on Film Morphology and BHJ Solar Cell Performance

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 corr...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2010-12, Vol.22 (48), p.5468-5472
Main Authors: 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.
Format: Article
Language:English
Subjects:
conducting polymers
conjugated polymers
COPOLYMERS
MORPHOLOGY
photovoltaic devices
Polymers - chemistry
Scattering, Small Angle
SOLAR CELLS
SOLAR ENERGY
structure-property relationships
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Summary: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.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201002687