Solid-State Organization and Ambipolar Field-Effect Transistors of Benzothiadiazole-Cyclopentadithiophene Copolymer with Long Branched Alkyl Side Chains oleh Martin Baumgarten, Klaus Müllen, Michael Ryan Hansen, Jie Shu, Alexey Mavrinskiy, Sreenivasa Reddy Puniredd, Yanfei Zhao, Don M. Cho, Dmytro Dudenko, Hoi Nok Tsao, Wojciech Pisula