Photoinduced energy and electron transfer in rubrene-benzoquinone and rubrene-porphyrin systems

Jafar Iqbal Khan; Abdullah Saud Abbas; Shawkat Mohammede Aly; Anwar Usman; Vasily Melnikov; Erkki Alarousu; Omar F. Mohammed

doi:10.1016/j.cplett.2014.10.047

Photoinduced energy and electron transfer in rubrene-benzoquinone and rubrene-porphyrin systems

Jafar Iqbal Khan, Abdullah Saud Abbas, Shawkat Mohammede Aly, Anwar Usman, Vasily Melnikov, Erkki Alarousu, Omar F. Mohammed

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

4 Scopus citations

Abstract

Excited-state electron and energy transfer from singlet excited rubrene (Ru) to benzoquinone (BQ) and tetra-(4-aminophenyl) porphyrin (TAPP) were investigated by steady-state absorption and emission, time-resolved transient absorption, and femtosecond (fs)-nanosecond (ns) fluorescence spectroscopy. The low reduction potential of BQ provides the high probability of electron transfer from the excited Ru to BQ. Steady-state and time-resolved results confirm such an excited electron transfer scenario. On the other hand, strong spectral overlap between the emission of Ru and absorption of TAPP suggests that energy transfer is a possible deactivation pathway of the Ru excited state.

Original language	English (US)
Pages (from-to)	237-242
Number of pages	6
Journal	Chemical Physics Letters
Volume	616-617
DOIs	https://doi.org/10.1016/j.cplett.2014.10.047
State	Published - Nov 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Shawkat M. Aly is grateful for the post-doctoral fellowship provided by Saudi Basic Industries Corporation (SABIC). The work reported herein was supported by the King Abdullah University of Science and Technology.

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2014.10.047

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@article{b7e0fb8ea53c48fcbacfa71f8cf3cfd6,

title = "Photoinduced energy and electron transfer in rubrene-benzoquinone and rubrene-porphyrin systems",

abstract = "Excited-state electron and energy transfer from singlet excited rubrene (Ru) to benzoquinone (BQ) and tetra-(4-aminophenyl) porphyrin (TAPP) were investigated by steady-state absorption and emission, time-resolved transient absorption, and femtosecond (fs)-nanosecond (ns) fluorescence spectroscopy. The low reduction potential of BQ provides the high probability of electron transfer from the excited Ru to BQ. Steady-state and time-resolved results confirm such an excited electron transfer scenario. On the other hand, strong spectral overlap between the emission of Ru and absorption of TAPP suggests that energy transfer is a possible deactivation pathway of the Ru excited state.",

author = "Khan, {Jafar Iqbal} and Abbas, {Abdullah Saud} and Aly, {Shawkat Mohammede} and Anwar Usman and Vasily Melnikov and Erkki Alarousu and Mohammed, {Omar F.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Shawkat M. Aly is grateful for the post-doctoral fellowship provided by Saudi Basic Industries Corporation (SABIC). The work reported herein was supported by the King Abdullah University of Science and Technology.",

year = "2014",

month = nov,

doi = "10.1016/j.cplett.2014.10.047",

language = "English (US)",

volume = "616-617",

pages = "237--242",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

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TY - JOUR

T1 - Photoinduced energy and electron transfer in rubrene-benzoquinone and rubrene-porphyrin systems

AU - Khan, Jafar Iqbal

AU - Abbas, Abdullah Saud

AU - Aly, Shawkat Mohammede

AU - Usman, Anwar

AU - Melnikov, Vasily

AU - Alarousu, Erkki

AU - Mohammed, Omar F.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Shawkat M. Aly is grateful for the post-doctoral fellowship provided by Saudi Basic Industries Corporation (SABIC). The work reported herein was supported by the King Abdullah University of Science and Technology.

PY - 2014/11

Y1 - 2014/11

N2 - Excited-state electron and energy transfer from singlet excited rubrene (Ru) to benzoquinone (BQ) and tetra-(4-aminophenyl) porphyrin (TAPP) were investigated by steady-state absorption and emission, time-resolved transient absorption, and femtosecond (fs)-nanosecond (ns) fluorescence spectroscopy. The low reduction potential of BQ provides the high probability of electron transfer from the excited Ru to BQ. Steady-state and time-resolved results confirm such an excited electron transfer scenario. On the other hand, strong spectral overlap between the emission of Ru and absorption of TAPP suggests that energy transfer is a possible deactivation pathway of the Ru excited state.

AB - Excited-state electron and energy transfer from singlet excited rubrene (Ru) to benzoquinone (BQ) and tetra-(4-aminophenyl) porphyrin (TAPP) were investigated by steady-state absorption and emission, time-resolved transient absorption, and femtosecond (fs)-nanosecond (ns) fluorescence spectroscopy. The low reduction potential of BQ provides the high probability of electron transfer from the excited Ru to BQ. Steady-state and time-resolved results confirm such an excited electron transfer scenario. On the other hand, strong spectral overlap between the emission of Ru and absorption of TAPP suggests that energy transfer is a possible deactivation pathway of the Ru excited state.

UR - http://hdl.handle.net/10754/563832

UR - https://linkinghub.elsevier.com/retrieve/pii/S0009261414009002

UR - http://www.scopus.com/inward/record.url?scp=84911467750&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2014.10.047

DO - 10.1016/j.cplett.2014.10.047

M3 - Article

SN - 0009-2614

VL - 616-617

SP - 237

EP - 242

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

Photoinduced energy and electron transfer in rubrene-benzoquinone and rubrene-porphyrin systems

Abstract

Bibliographical note

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