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
- 0000-0002-6879-4826
- 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.