Diselenogermole as a novel donor monomer for low band gap polymers

Zhuping Fei; Raja Shahid Ashraf; Yang Han; Sarah Wang; Chin Pang Yau; Pabitra S. Tuladhar; Thomas D. Anthopoulos; Michael L. Chabinyc; Martin Heeney

doi:10.1039/c4ta05703a

Diselenogermole as a novel donor monomer for low band gap polymers

Zhuping Fei, Raja Shahid Ashraf, Yang Han, Sarah Wang, Chin Pang Yau, Pabitra S. Tuladhar, Thomas D. Anthopoulos, Michael L. Chabinyc, Martin Heeney

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

We report the synthesis of a new diseleno[3,2-b:2′,3′-d]germole (DSG) monomer containing branched 2-ethylhexyl sidechains on the bridging germanium group. The utility of this new electron rich monomer is explored by co-polymerisation of a distannylated DSG monomer with N-octylthienopyrrolodione to afford a soluble low band gap polymer. The DSG containing polymer shows a broader and more red-shifted absorption spectrum compared its thiophene analogue. Polymer solar cells are fabricated from blends with PC71BM exhibiting initial power conversion efficiencies of 5.2% in inverted bulk heterojunction solar cells.

Original language	English (US)
Pages (from-to)	1986-1994
Number of pages	9
Journal	Journal of Materials Chemistry A
Volume	3
Issue number	5
DOIs	https://doi.org/10.1039/c4ta05703a
State	Published - Feb 7 2015
Externally published	Yes

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abstract = "We report the synthesis of a new diseleno[3,2-b:2′,3′-d]germole (DSG) monomer containing branched 2-ethylhexyl sidechains on the bridging germanium group. The utility of this new electron rich monomer is explored by co-polymerisation of a distannylated DSG monomer with N-octylthienopyrrolodione to afford a soluble low band gap polymer. The DSG containing polymer shows a broader and more red-shifted absorption spectrum compared its thiophene analogue. Polymer solar cells are fabricated from blends with PC71BM exhibiting initial power conversion efficiencies of 5.2% in inverted bulk heterojunction solar cells.",

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AU - Fei, Zhuping

AU - Ashraf, Raja Shahid

AU - Han, Yang

AU - Wang, Sarah

AU - Yau, Chin Pang

AU - Tuladhar, Pabitra S.

AU - Anthopoulos, Thomas D.

AU - Chabinyc, Michael L.

AU - Heeney, Martin

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Y1 - 2015/2/7

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AB - We report the synthesis of a new diseleno[3,2-b:2′,3′-d]germole (DSG) monomer containing branched 2-ethylhexyl sidechains on the bridging germanium group. The utility of this new electron rich monomer is explored by co-polymerisation of a distannylated DSG monomer with N-octylthienopyrrolodione to afford a soluble low band gap polymer. The DSG containing polymer shows a broader and more red-shifted absorption spectrum compared its thiophene analogue. Polymer solar cells are fabricated from blends with PC71BM exhibiting initial power conversion efficiencies of 5.2% in inverted bulk heterojunction solar cells.

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EP - 1994

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 5

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Diselenogermole as a novel donor monomer for low band gap polymers

Abstract

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