Molecular packing of high-mobility diketo pyrrolo-pyrrole polymer semiconductors with branched alkyl side chains

Xinran Zhang, Lee J. Richter, Dean M. Delongchamp, R. Joseph Kline, Matthew R. Hammond, Iain McCulloch, Martin Heeney, Raja S. Ashraf, Jeremy N. Smith, Thomas D. Anthopoulos, Bob Schroeder, Yves H. Geerts, Daniel A. Fischer, Michael F. Toney