The interplay of different relaxation channels in the excited state dynamics of photoinitiators

The interplay of different relaxation channels in the excited state dynamics of photoinitiators

Different photoinitiators are investigated by femtosecond transient absorption spectroscopy and DFT calculations. Their initiation properties are critically governed by competition between intersystem crossing, fluorescence and internal conversion partly taking place on comparable time scales. It is...

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Main Authors: Barner-Kowollik C., Wegener M., Voll D., Fischer J., Wolf T. J. A., Unterreiner A.-N.
Format: Article
Language:English
Published: EDP Sciences 2013-03-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20134105008
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spelling doaj-62d6e7130ef246c58f213926c1ece8072021-08-02T04:07:40ZengEDP SciencesEPJ Web of Conferences2100-014X2013-03-01410500810.1051/epjconf/20134105008The interplay of different relaxation channels in the excited state dynamics of photoinitiatorsBarner-Kowollik C.Wegener M.Voll D.Fischer J.Wolf T. J. A.Unterreiner A.-N.Different photoinitiators are investigated by femtosecond transient absorption spectroscopy and DFT calculations. Their initiation properties are critically governed by competition between intersystem crossing, fluorescence and internal conversion partly taking place on comparable time scales. It is thereby shown that the S* lifetime cannot serve as a measure for the photoinitiation efficiency. http://dx.doi.org/10.1051/epjconf/20134105008
collection DOAJ
language English
format Article
sources DOAJ
author Barner-Kowollik C.
Wegener M.
Voll D.
Fischer J.
Wolf T. J. A.
Unterreiner A.-N.
spellingShingle Barner-Kowollik C.
Wegener M.
Voll D.
Fischer J.
Wolf T. J. A.
Unterreiner A.-N.
The interplay of different relaxation channels in the excited state dynamics of photoinitiators
EPJ Web of Conferences
author_facet Barner-Kowollik C.
Wegener M.
Voll D.
Fischer J.
Wolf T. J. A.
Unterreiner A.-N.
author_sort Barner-Kowollik C.
title The interplay of different relaxation channels in the excited state dynamics of photoinitiators
title_short The interplay of different relaxation channels in the excited state dynamics of photoinitiators
title_full The interplay of different relaxation channels in the excited state dynamics of photoinitiators
title_fullStr The interplay of different relaxation channels in the excited state dynamics of photoinitiators
title_full_unstemmed The interplay of different relaxation channels in the excited state dynamics of photoinitiators
title_sort interplay of different relaxation channels in the excited state dynamics of photoinitiators
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2013-03-01
description Different photoinitiators are investigated by femtosecond transient absorption spectroscopy and DFT calculations. Their initiation properties are critically governed by competition between intersystem crossing, fluorescence and internal conversion partly taking place on comparable time scales. It is thereby shown that the S* lifetime cannot serve as a measure for the photoinitiation efficiency.
url http://dx.doi.org/10.1051/epjconf/20134105008
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