Zimmermann, Frank P.; Koban, Wieland; Roth, Christian M.; Herten, Dirk-Peter; Schulz, Christof:
Fluorescence lifetime of gas-phase toluene at elevated temperatures
In: Chemical Physics Letters, Jg. 426 (2006), Heft 4-6, S. 248 - 251
2006Artikel/Aufsatz in Zeitschrift
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Titel in Englisch:
Fluorescence lifetime of gas-phase toluene at elevated temperatures
Autor*in:
Zimmermann, Frank P.;Koban, Wieland;Roth, Christian M.;Herten, Dirk-Peter;Schulz, ChristofUDE
GND
110671317
GND
1148037985
LSF ID
48807
ORCID
0000-0002-6879-4826ORCID iD
Sonstiges
der Hochschule zugeordnete*r Autor*in
Erscheinungsjahr:
2006
Sprache des Textes:
Englisch

Abstract:

The fluorescence lifetime of toluene in the gas phase upon excitation at 248 nm was studied as a function of temp. (296-625 K) via time-correlated single-photon counting (TCSPC) in N bath gas at 1 bar total pressure. The fluorescence decay can be represented by a bi-exponential function. Lifetimes are decreasing with increasing temp., with the long lifetime component ranging from 45 to 2 ns and the short component from 2 to 0.4 ns in the studied temp. range. Results suggest high repetition-rate laser excitation of tracers like toluene in combination with TCSPC as a novel tracer-concn.-independent method for detg. gas-phase temps.