Bimolecular recombination losses in polythiophene: Fullerene solar cells

C. G. Shuttle; B. O'Regan; A. M. Ballantyne; J. Nelson; D. D.C. Bradley; J. R. Durrant

doi:10.1103/PhysRevB.78.113201

Bimolecular recombination losses in polythiophene: Fullerene solar cells

C. G. Shuttle, B. O'Regan, A. M. Ballantyne, J. Nelson, D. D.C. Bradley, J. R. Durrant

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

397 Scopus citations

Abstract

Transient absorption spectroscopy is employed to monitor charge carrier decay dynamics in an annealed poly(3-hexylthiophene): methanofullerene solar cell. Comparisons of device and film data and data under applied bias demonstrate that these dynamics are dominated by bimolecular recombination. These data allow us to quantify the rate constant for bimolecular recombination, found to be strongly carrier density dependent, and thus determine the bimolecular recombination flux. By comparison with the device short-circuit photocurrent we conclude that the open-circuit voltage is primarily limited by bimolecular recombination. © 2008 The American Physical Society.

Original language	English (US)
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.78.113201
State	Published - Sep 9 2008
Externally published	Yes

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title = "Bimolecular recombination losses in polythiophene: Fullerene solar cells",

abstract = "Transient absorption spectroscopy is employed to monitor charge carrier decay dynamics in an annealed poly(3-hexylthiophene): methanofullerene solar cell. Comparisons of device and film data and data under applied bias demonstrate that these dynamics are dominated by bimolecular recombination. These data allow us to quantify the rate constant for bimolecular recombination, found to be strongly carrier density dependent, and thus determine the bimolecular recombination flux. By comparison with the device short-circuit photocurrent we conclude that the open-circuit voltage is primarily limited by bimolecular recombination. {\textcopyright} 2008 The American Physical Society.",

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AU - Nelson, J.

AU - Bradley, D. D.C.

AU - Durrant, J. R.

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AB - Transient absorption spectroscopy is employed to monitor charge carrier decay dynamics in an annealed poly(3-hexylthiophene): methanofullerene solar cell. Comparisons of device and film data and data under applied bias demonstrate that these dynamics are dominated by bimolecular recombination. These data allow us to quantify the rate constant for bimolecular recombination, found to be strongly carrier density dependent, and thus determine the bimolecular recombination flux. By comparison with the device short-circuit photocurrent we conclude that the open-circuit voltage is primarily limited by bimolecular recombination. © 2008 The American Physical Society.

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

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Bimolecular recombination losses in polythiophene: Fullerene solar cells

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