A low band gap co-polymer of dithienogermole and 2,1,3-benzothiadiazole by Suzuki polycondensation and its application in transistor and photovoltaic cells - Fei,Z; Kim,JS; Smith,J; Domingo,EB; Anthopoulos,TD; Stingelin,N; Watkins,SE; Kim,J-S; Heeney,M (JOURNAL OF MATERIALS CHEMISTRY, 2011)