Photoinduced multistep energy and electron transfer in an oligoaniline-oligo(p-phenylene vinylene)-fullerene triad

A. Marcos Ramos; S.C.J. Meskers; P.A. Hal, van; J. Knol; J.C. Hummelen; R.A.J. Janssen

doi:10.1021/jp035549+

Photoinduced multistep energy and electron transfer in an oligoaniline-oligo(p-phenylene vinylene)-fullerene triad

A. Marcos Ramos, S.C.J. Meskers, P.A. Hal, van, J. Knol, J.C. Hummelen, R.A.J. Janssen

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Abstract

A donor-donor-acceptor triad, OAn-OPV-C60, with a redox gradient has been synthesized by covalently linking an oligoaniline (OAn), an oligo(p-phenylene vinylene) (OPV), and a fullerene (C60) in a nonconjugated linear array. Photoluminescence and femtosecond pump-probe spectroscopy studies reveal that photoexcitation of any of the three chromophores of this triad in a polar solvent results in formation of the OAn-OPV+-C60- charge-sepd. state, after an efficient ultrafast (1 ns) due to weak electronic coupling between the distant redox sites in the excited state. The stabilization gained is more than 1 order of magnitude in time. The exptl. results are found to be in qual. agreement with Marcus theory. In thin films, the OAn+-OPV-C60- state is formed at a higher rate and in higher quantum yield than in soln. [on SciFinder (R)]

Original language	English
Pages (from-to)	9269-9283
Journal	Journal of Physical Chemistry A
Volume	107
Issue number	44
DOIs	https://doi.org/10.1021/jp035549+
Publication status	Published - 2003

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@article{7b6f66de1a5d43b3a2bf16255d44acb9,

title = "Photoinduced multistep energy and electron transfer in an oligoaniline-oligo(p-phenylene vinylene)-fullerene triad",

abstract = "A donor-donor-acceptor triad, OAn-OPV-C60, with a redox gradient has been synthesized by covalently linking an oligoaniline (OAn), an oligo(p-phenylene vinylene) (OPV), and a fullerene (C60) in a nonconjugated linear array. Photoluminescence and femtosecond pump-probe spectroscopy studies reveal that photoexcitation of any of the three chromophores of this triad in a polar solvent results in formation of the OAn-OPV+-C60- charge-sepd. state, after an efficient ultrafast (1 ns) due to weak electronic coupling between the distant redox sites in the excited state. The stabilization gained is more than 1 order of magnitude in time. The exptl. results are found to be in qual. agreement with Marcus theory. In thin films, the OAn+-OPV-C60- state is formed at a higher rate and in higher quantum yield than in soln. [on SciFinder (R)]",

author = "{Marcos Ramos}, A. and S.C.J. Meskers and {Hal, van}, P.A. and J. Knol and J.C. Hummelen and R.A.J. Janssen",

year = "2003",

doi = "10.1021/jp035549+",

language = "English",

volume = "107",

pages = "9269--9283",

journal = "Journal of Physical Chemistry A",

issn = "1089-5639",

publisher = "American Chemical Society",

number = "44",

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TY - JOUR

T1 - Photoinduced multistep energy and electron transfer in an oligoaniline-oligo(p-phenylene vinylene)-fullerene triad

AU - Marcos Ramos, A.

AU - Meskers, S.C.J.

AU - Hal, van, P.A.

AU - Knol, J.

AU - Hummelen, J.C.

AU - Janssen, R.A.J.

PY - 2003

Y1 - 2003

N2 - A donor-donor-acceptor triad, OAn-OPV-C60, with a redox gradient has been synthesized by covalently linking an oligoaniline (OAn), an oligo(p-phenylene vinylene) (OPV), and a fullerene (C60) in a nonconjugated linear array. Photoluminescence and femtosecond pump-probe spectroscopy studies reveal that photoexcitation of any of the three chromophores of this triad in a polar solvent results in formation of the OAn-OPV+-C60- charge-sepd. state, after an efficient ultrafast (1 ns) due to weak electronic coupling between the distant redox sites in the excited state. The stabilization gained is more than 1 order of magnitude in time. The exptl. results are found to be in qual. agreement with Marcus theory. In thin films, the OAn+-OPV-C60- state is formed at a higher rate and in higher quantum yield than in soln. [on SciFinder (R)]

AB - A donor-donor-acceptor triad, OAn-OPV-C60, with a redox gradient has been synthesized by covalently linking an oligoaniline (OAn), an oligo(p-phenylene vinylene) (OPV), and a fullerene (C60) in a nonconjugated linear array. Photoluminescence and femtosecond pump-probe spectroscopy studies reveal that photoexcitation of any of the three chromophores of this triad in a polar solvent results in formation of the OAn-OPV+-C60- charge-sepd. state, after an efficient ultrafast (1 ns) due to weak electronic coupling between the distant redox sites in the excited state. The stabilization gained is more than 1 order of magnitude in time. The exptl. results are found to be in qual. agreement with Marcus theory. In thin films, the OAn+-OPV-C60- state is formed at a higher rate and in higher quantum yield than in soln. [on SciFinder (R)]

U2 - 10.1021/jp035549+

DO - 10.1021/jp035549+

M3 - Article

SN - 1089-5639

VL - 107

SP - 9269

EP - 9283

JO - Journal of Physical Chemistry A

JF - Journal of Physical Chemistry A

IS - 44

ER -

Photoinduced multistep energy and electron transfer in an oligoaniline-oligo(p-phenylene vinylene)-fullerene triad

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