Jodi M. Szarko, Jianchang Guo, Yongye Liang, Byeongdu Lee, Brian S. Rolczynski, Joseph Strzalka, Tao Xu, Stephen Loser, Tobin J. Marks, Luping Yu and Lin X. Chen When Function Follows Form: Effects of Donor Copolymer Side Chains on Film Morphology and BHJ Solar Cell Performance Advanced Materials 22
Version of Record online: 18 NOV 2010 | DOI: 10.1002/adma.201002687
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.
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