Photoinduced singlet and triplet energy transfer in fullerene-oligothiophene-fullerene triads

Paul A. van Hal; Joop Knol; Bea M.W. Langeveld-Voss; Stefan C.J. Meskers; J. C. Hummelen; René A.J. Janssen

doi:10.1016/S0379-6779(00)00528-2

Photoinduced singlet and triplet energy transfer in fullerene-oligothiophene-fullerene triads

Paul A. van Hal
, Joop Knol
, Bea M.W. Langeveld-Voss
, Stefan C.J. Meskers
, J. C. Hummelen
, René A.J. Janssen

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

15 Citations (Scopus)

Abstract

Photophysical properties of fullerene-oligothiophene-fullerene (C₆₀-nT-C₆₀) triads with n = 3,6, or 9 thiophene units have been investigated using photoinduced absorption (PIA) and (time-resolved) fluorescence spectroscopy in toluene and compared to mixtures of oligothiophenes (nT) with N-methylfulleropyrrolidine (MP-C₆₀). Photoexcitation of the oligothiophene moiety of the C₆₀-nT-C₆₀ triads in toluene results in a very fast singlet-energy transfer reaction to the fullerene moiety with rates varying between 10¹² and 10¹³ s^-1. In the mixtures, an inter-molecular triplet-energy transfer reaction occurs. The preference for intra- and inter-molecular energy instead of electron transfer reactions in these triads in toluene is in full agreement with predictions that can be made for the change in free energy upon charge separation.

Original language	English
Pages (from-to)	123-127
Number of pages	5
Journal	Synthetic Metals
Volume	116
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(00)00528-2
Publication status	Published - 1 Jan 2001

Funding

This work is supported by NOVEM (146.120-008.1 and 146.120.008.3), the EET program (EETK97115), and by the Council for Chemical Sciences of The Netherlands Organization for Scientific Research (CW-NWO) and the Eindhoven University of Technology in the PIONIER program.

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title = "Photoinduced singlet and triplet energy transfer in fullerene-oligothiophene-fullerene triads",

abstract = "Photophysical properties of fullerene-oligothiophene-fullerene (C60-nT-C60) triads with n = 3,6, or 9 thiophene units have been investigated using photoinduced absorption (PIA) and (time-resolved) fluorescence spectroscopy in toluene and compared to mixtures of oligothiophenes (nT) with N-methylfulleropyrrolidine (MP-C60). Photoexcitation of the oligothiophene moiety of the C60-nT-C60 triads in toluene results in a very fast singlet-energy transfer reaction to the fullerene moiety with rates varying between 1012 and 1013 s-1. In the mixtures, an inter-molecular triplet-energy transfer reaction occurs. The preference for intra- and inter-molecular energy instead of electron transfer reactions in these triads in toluene is in full agreement with predictions that can be made for the change in free energy upon charge separation.",

author = "\{van Hal\}, \{Paul A.\} and Joop Knol and Langeveld-Voss, \{Bea M.W.\} and Meskers, \{Stefan C.J.\} and Hummelen, \{J. C.\} and Janssen, \{Ren{\'e} A.J.\}",

year = "2001",

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doi = "10.1016/S0379-6779(00)00528-2",

language = "English",

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T1 - Photoinduced singlet and triplet energy transfer in fullerene-oligothiophene-fullerene triads

AU - van Hal, Paul A.

AU - Knol, Joop

AU - Langeveld-Voss, Bea M.W.

AU - Meskers, Stefan C.J.

AU - Hummelen, J. C.

AU - Janssen, René A.J.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - Photophysical properties of fullerene-oligothiophene-fullerene (C60-nT-C60) triads with n = 3,6, or 9 thiophene units have been investigated using photoinduced absorption (PIA) and (time-resolved) fluorescence spectroscopy in toluene and compared to mixtures of oligothiophenes (nT) with N-methylfulleropyrrolidine (MP-C60). Photoexcitation of the oligothiophene moiety of the C60-nT-C60 triads in toluene results in a very fast singlet-energy transfer reaction to the fullerene moiety with rates varying between 1012 and 1013 s-1. In the mixtures, an inter-molecular triplet-energy transfer reaction occurs. The preference for intra- and inter-molecular energy instead of electron transfer reactions in these triads in toluene is in full agreement with predictions that can be made for the change in free energy upon charge separation.

AB - Photophysical properties of fullerene-oligothiophene-fullerene (C60-nT-C60) triads with n = 3,6, or 9 thiophene units have been investigated using photoinduced absorption (PIA) and (time-resolved) fluorescence spectroscopy in toluene and compared to mixtures of oligothiophenes (nT) with N-methylfulleropyrrolidine (MP-C60). Photoexcitation of the oligothiophene moiety of the C60-nT-C60 triads in toluene results in a very fast singlet-energy transfer reaction to the fullerene moiety with rates varying between 1012 and 1013 s-1. In the mixtures, an inter-molecular triplet-energy transfer reaction occurs. The preference for intra- and inter-molecular energy instead of electron transfer reactions in these triads in toluene is in full agreement with predictions that can be made for the change in free energy upon charge separation.

UR - https://www.scopus.com/pages/publications/0034817745

U2 - 10.1016/S0379-6779(00)00528-2

DO - 10.1016/S0379-6779(00)00528-2

M3 - Article

AN - SCOPUS:0034817745

SN - 0379-6779

VL - 116

SP - 123

EP - 127

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Photoinduced singlet and triplet energy transfer in fullerene-oligothiophene-fullerene triads

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