Triplet formation by charge recombination in thin film blends of perylene red and pyrene: developing a target model for the photophysics of organic photovoltaic materials

R.M. Williams; N. Van Anh; I.H.M. van Stokkum

doi:10.1021/jp402086p

Triplet formation by charge recombination in thin film blends of perylene red and pyrene: developing a target model for the photophysics of organic photovoltaic materials

R.M. Williams, N. Van Anh, I.H.M. van Stokkum

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

Photoinduced charge separation in a mixture of Perylene Red (N,N′-bis(2,6-di-isopropylphenyl)-1,6,7,12-tetraphenoxyperylene-3,4:9, 10-tetracarboxylic acid bis-imide) and pyrene, organized in thin solid film on quartz, was studied by means of steady-state absorption and emission spectroscopy and by femtosecond transient absorption spectroscopy. Steady state spectroscopy shows substantial interaction between the two chromophores in the ground and excited states. Luminescence quenching indicates charge transfer interaction. Global and target analysis of the transient absorption data indicates a complex photophysical behavior with the formation of long-lived charges (free charge carriers) and of a triplet excited state species (with rates of ∼10.4 × 10

Original language	English
Pages (from-to)	11239-11248
Journal	Journal of Physical Chemistry B
DOIs	https://doi.org/10.1021/jp402086p
Publication status	Published - 2013

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title = "Triplet formation by charge recombination in thin film blends of perylene red and pyrene: developing a target model for the photophysics of organic photovoltaic materials",

abstract = "Photoinduced charge separation in a mixture of Perylene Red (N,N′-bis(2,6-di-isopropylphenyl)-1,6,7,12-tetraphenoxyperylene-3,4:9, 10-tetracarboxylic acid bis-imide) and pyrene, organized in thin solid film on quartz, was studied by means of steady-state absorption and emission spectroscopy and by femtosecond transient absorption spectroscopy. Steady state spectroscopy shows substantial interaction between the two chromophores in the ground and excited states. Luminescence quenching indicates charge transfer interaction. Global and target analysis of the transient absorption data indicates a complex photophysical behavior with the formation of long-lived charges (free charge carriers) and of a triplet excited state species (with rates of ∼10.4 × 10",

author = "R.M. Williams and {Van Anh}, N. and {van Stokkum}, I.H.M.",

year = "2013",

doi = "10.1021/jp402086p",

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journal = "Journal of Physical Chemistry B",

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AU - Williams, R.M.

AU - Van Anh, N.

AU - van Stokkum, I.H.M.

PY - 2013

Y1 - 2013

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AB - Photoinduced charge separation in a mixture of Perylene Red (N,N′-bis(2,6-di-isopropylphenyl)-1,6,7,12-tetraphenoxyperylene-3,4:9, 10-tetracarboxylic acid bis-imide) and pyrene, organized in thin solid film on quartz, was studied by means of steady-state absorption and emission spectroscopy and by femtosecond transient absorption spectroscopy. Steady state spectroscopy shows substantial interaction between the two chromophores in the ground and excited states. Luminescence quenching indicates charge transfer interaction. Global and target analysis of the transient absorption data indicates a complex photophysical behavior with the formation of long-lived charges (free charge carriers) and of a triplet excited state species (with rates of ∼10.4 × 10

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DO - 10.1021/jp402086p

M3 - Article

SN - 1520-6106

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JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

ER -

Triplet formation by charge recombination in thin film blends of perylene red and pyrene: developing a target model for the photophysics of organic photovoltaic materials

Abstract

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