Enhanced power conversion efficiencies in bulk heterojunction solar cells based on conjugated polymer with isoindigo side chain
2013
Wang, Changwei | Zhao, Bin | Cao, Zhencai | Shen, Ping | Tan, Zhuo | Li, Xiangling | Tan, Songting
A novel conjugated side-chain polymer (PBDT-TID), based on benzo[1,2-b:4,5-b′]dithiophene (BDT) and isoindigo (ID) moieties, was designed and synthesized. The new polymer exhibited excellent microphase separation in active layers. Bulk heterojunction polymer solar cells fabricated from PBDT-TID and PC₆₁BM showed promising power conversion efficiencies of 5.25% and 6.51% using conventional and inverted device structures, respectively.
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