Side-Chain Engineering of Diketopyrrolopyrrole-based Copolymer Using Alkyl Ester Group for Efficient Polymer Solar Cell
Side-Chain Engineering of Diketopyrrolopyrrole-based Copolymer Using Alkyl Ester Group for Efficient Polymer Solar Cell
- 주제(키워드) diketopyrrolopyrrole , conjugated copolymer , side chain , miscibility , film morphology , polymer solar cell.
- 발행기관 한국고분자학회
- 발행년도 2016
- 총서유형 Journal
- UCI G704-000117.2016.24.11.005
- KCI ID ART002166531
- 본문언어 영어
초록/요약
The new diketopyrrolopyrrole-based copolymer, referred to as PDPPBDTE, bearing linear alkyl ester groups, was synthesized with the objective of improving the miscibility between the donor polymer and [6,6]-phenyl C71 butyric acid methyl ester (PC71BM). PDPPBDTA bearing ethylhexyl side-chains was also synthesized as a control polymer. The PDPPBDTE:PC71BM blend film showed a relatively small crystalline domain size compared to the PDPPBDTA:PC71BM blend film. A polymer solar cell fabricated with PDPPBDTE and PC71BM exhibited twofold higher power conversion efficiency than that employing PDPPBDTA.
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