Silaindacenodithiophene-based low band gap polymers - The effect of fluorine substitution on device performances and film morphologies

Bob C. Schroeder; Zhenggang Huang; Raja Shahid Ashraf; Jeremy Smith; Pasquale D'Angelo; Scott E. Watkins; Thomas D. Anthopoulos; James R. Durrant; Iain McCulloch

doi:10.1002/adfm.201102941

Silaindacenodithiophene-based low band gap polymers - The effect of fluorine substitution on device performances and film morphologies

Bob C. Schroeder, Zhenggang Huang, Raja Shahid Ashraf^*, Jeremy Smith, Pasquale D'Angelo, Scott E. Watkins, Thomas D. Anthopoulos, James R. Durrant, Iain McCulloch

^*Corresponding author for this work

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

177 Scopus citations

Abstract

Silaindacenodithiophene is copolymerized with benzo[c][1,2,5]thiadiazole (BT) and 4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole (DTBT), respectively their fluorinated counter parts 5,6-difluorobenzo[c][1,2,5]thiadiazole (2FBT) and 5,6-difluoro-4,7-di(thiophen-2-yl) benzo[c][1,2,5]thiadiazole (2FDTBT). The influence of the thienyl spacers and fluorine atoms on molecular packing and active layer morphology is investigated with regard to device performances. bulk heterojunction (BHJ) solar cells based on silaindacenodithiophene donor-acceptor polymers achieved PCE's of 4.5% and hole mobilities of as high as 0.28 cm ²/(V s) are achieved in an organic field-effect transistor (OFET).

Original language	English (US)
Pages (from-to)	1663-1670
Number of pages	8
Journal	Advanced Functional Materials
Volume	22
Issue number	8
DOIs	https://doi.org/10.1002/adfm.201102941
State	Published - Apr 24 2012

Keywords

conjugated polymers
fluorine
hole mobility
silaindacenodithiophene
solar cell

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Silaindacenodithiophene-based low band gap polymers - The effect of fluorine substitution on device performances and film morphologies",

abstract = "Silaindacenodithiophene is copolymerized with benzo[c][1,2,5]thiadiazole (BT) and 4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole (DTBT), respectively their fluorinated counter parts 5,6-difluorobenzo[c][1,2,5]thiadiazole (2FBT) and 5,6-difluoro-4,7-di(thiophen-2-yl) benzo[c][1,2,5]thiadiazole (2FDTBT). The influence of the thienyl spacers and fluorine atoms on molecular packing and active layer morphology is investigated with regard to device performances. bulk heterojunction (BHJ) solar cells based on silaindacenodithiophene donor-acceptor polymers achieved PCE's of 4.5% and hole mobilities of as high as 0.28 cm 2/(V s) are achieved in an organic field-effect transistor (OFET).",

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author = "Schroeder, {Bob C.} and Zhenggang Huang and Ashraf, {Raja Shahid} and Jeremy Smith and Pasquale D'Angelo and Watkins, {Scott E.} and Anthopoulos, {Thomas D.} and Durrant, {James R.} and Iain McCulloch",

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AU - Schroeder, Bob C.

AU - Huang, Zhenggang

AU - Ashraf, Raja Shahid

AU - Smith, Jeremy

AU - D'Angelo, Pasquale

AU - Watkins, Scott E.

AU - Anthopoulos, Thomas D.

AU - Durrant, James R.

AU - McCulloch, Iain

PY - 2012/4/24

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N2 - Silaindacenodithiophene is copolymerized with benzo[c][1,2,5]thiadiazole (BT) and 4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole (DTBT), respectively their fluorinated counter parts 5,6-difluorobenzo[c][1,2,5]thiadiazole (2FBT) and 5,6-difluoro-4,7-di(thiophen-2-yl) benzo[c][1,2,5]thiadiazole (2FDTBT). The influence of the thienyl spacers and fluorine atoms on molecular packing and active layer morphology is investigated with regard to device performances. bulk heterojunction (BHJ) solar cells based on silaindacenodithiophene donor-acceptor polymers achieved PCE's of 4.5% and hole mobilities of as high as 0.28 cm 2/(V s) are achieved in an organic field-effect transistor (OFET).

AB - Silaindacenodithiophene is copolymerized with benzo[c][1,2,5]thiadiazole (BT) and 4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole (DTBT), respectively their fluorinated counter parts 5,6-difluorobenzo[c][1,2,5]thiadiazole (2FBT) and 5,6-difluoro-4,7-di(thiophen-2-yl) benzo[c][1,2,5]thiadiazole (2FDTBT). The influence of the thienyl spacers and fluorine atoms on molecular packing and active layer morphology is investigated with regard to device performances. bulk heterojunction (BHJ) solar cells based on silaindacenodithiophene donor-acceptor polymers achieved PCE's of 4.5% and hole mobilities of as high as 0.28 cm 2/(V s) are achieved in an organic field-effect transistor (OFET).

KW - conjugated polymers

KW - fluorine

KW - hole mobility

KW - silaindacenodithiophene

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Silaindacenodithiophene-based low band gap polymers - The effect of fluorine substitution on device performances and film morphologies

Abstract

Keywords

ASJC Scopus subject areas

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