Enhancing the thermal stability of polythiophene:fullerene solar cells by decreasing effective polymer regioregularity

Kevin Sivula; Christine K. Luscombe; Barry C. Thompson; Jean M.J. Fréchet

doi:10.1021/ja064434r

Enhancing the thermal stability of polythiophene:fullerene solar cells by decreasing effective polymer regioregularity

Kevin Sivula, Christine K. Luscombe, Barry C. Thompson, Jean M.J. Fréchet

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

223 Scopus citations

Abstract

Regioregularity has been shown to be an important aspect for the properties of poly(3-hexylthiophene) both in the pristine material and in bulk heterojunction photovoltaics with the fullerene derivative PCBM. Here we present a straightforward method to adjust the effective regioregularity of poly(3-hexylthiophene) by introducing 3,4-dihexylthiophene into the polymer chain. By investigating bulk heterojunction morphology and photovoltaic performance upon annealing, we observe that polythiophene with 91% regioregularity maintains equivalent electronic properties but forms a more thermally stable interpenetrating network with PCBM than polythiophene with regioregularity >96%.

Original language	English (US)
Pages (from-to)	13988-13989
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	128
Issue number	43
DOIs	https://doi.org/10.1021/ja064434r
State	Published - Nov 1 2006
Externally published	Yes

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/ja064434r

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abstract = "Regioregularity has been shown to be an important aspect for the properties of poly(3-hexylthiophene) both in the pristine material and in bulk heterojunction photovoltaics with the fullerene derivative PCBM. Here we present a straightforward method to adjust the effective regioregularity of poly(3-hexylthiophene) by introducing 3,4-dihexylthiophene into the polymer chain. By investigating bulk heterojunction morphology and photovoltaic performance upon annealing, we observe that polythiophene with 91% regioregularity maintains equivalent electronic properties but forms a more thermally stable interpenetrating network with PCBM than polythiophene with regioregularity >96%.",

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AU - Fréchet, Jean M.J.

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AB - Regioregularity has been shown to be an important aspect for the properties of poly(3-hexylthiophene) both in the pristine material and in bulk heterojunction photovoltaics with the fullerene derivative PCBM. Here we present a straightforward method to adjust the effective regioregularity of poly(3-hexylthiophene) by introducing 3,4-dihexylthiophene into the polymer chain. By investigating bulk heterojunction morphology and photovoltaic performance upon annealing, we observe that polythiophene with 91% regioregularity maintains equivalent electronic properties but forms a more thermally stable interpenetrating network with PCBM than polythiophene with regioregularity >96%.

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Enhancing the thermal stability of polythiophene:fullerene solar cells by decreasing effective polymer regioregularity

Abstract

ASJC Scopus subject areas

UN SDGs

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