期刊
ASIAN JOURNAL OF ORGANIC CHEMISTRY
卷 4, 期 10, 页码 1096-1102出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ajoc.201500207
关键词
1; 3-indanedione; bulk-heterojunction devices; dibenzosiloles; non-fullerene acceptors; solution processing
资金
- Australian Research Council (ARC), Australia [FT110100152]
- CSIRO Division of Materials Science and Engineering, Clayton, Victoria
- ARC Future Fellowship Scheme at Queensland University of Technology, Brisbane, Queensland [FT130101337]
A solution-processable, non-fullerene electron acceptor, 2,2-(((5,5-dioctyl-5H-dibenzo[b,d]silole-3,7-diyl)bis(thiophene-5,2-diyl))bis(methanylylidene))bis(1H-indene-1,3(2H)-dione) (called N5) comprised of dibenzosilole and 1,3-indanedione building blocks was designed, synthesized, and fully characterized. N5 is highly soluble in various organic solvents, has high thermal stability, and has energy levels matching those of archetypal donor poly(3-hexylthiophene). Solution-processable, bulk-heterojunction solar cells afforded promising power conversion efficiency of 2.76% when N5 was used as a non-fullerene electron acceptor along with the conventional donor polymer poly(3-hexylthiophene). As per our knowledge, the material reported herein is the first example in the literature where synchronous use of such building blocks is demonstrated in the design an efficient, non-fullerene acceptor.
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