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

Autor: Barner-Kowollik C., Wegener M., Voll D., Fischer J., Wolf T. J. A., Unterreiner A.-N.
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: EPJ Web of Conferences, Vol 41, p 05008 (2013)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/20134105008
Popis: 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.
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