Low-pressure effective fluorescence lifetimes and photo-physical rate constants of one- and two-ring aromatics
详细信息 查看全文
- 作者：Thorsten Benzler ; Stephan Faust ; Thomas Dreier ; Christof Schulz
- 刊名：Applied Physics B: Lasers and Optics
- 出版年：2015
- 出版时间：December 2015
- 年：2015
- 卷：121
- 期：4
- 页码：549-558
- 全文大小：1,070 KB
- 参考文献：1.C. Schulz, V. Sick, Tracer-LIF diagnostics: quantitative measurement of fuel concentration, temperature and fuel/air ratio in practical combustion systems. Prog. Energy Combust. Sci. 31, 75-21 (2005)CrossRef
2.W. Koban, J.D. Koch, R.K. Hanson, C. Schulz, Oxygen quenching of toluene fluorescence at elevated temperatures. Appl. Phys. B 80, 777-84 (2005)CrossRef ADS
3.W. Koban, J.D. Koch, R.K. Hanson, C. Schulz, Toluene LIF at elevated temperatures: implications for fuel/air ratio measurements. Appl. Phys. B 80, 147-50 (2005)CrossRef ADS
4.M. Orain, P. Baranger, B. Rossow, F. Grisch, Fluorescence spectroscopy of naphthalene at high temperatures and pressures: implications for fuel-concentration measurements. Appl. Phys. B 102, 163-72 (2011)CrossRef ADS
5.W. Koban, J.D. Koch, R.K. Hanson, C. Schulz, Absorption and fluorescence of toluene vapor at elevated temperatures. Phys. Chem. Chem. Phys. 6, 2940 (2004)CrossRef
6.J.D. Koch, Fuel Tracer Photophysics for Quantitative Planar Laser-Induced Fluorescence, in Dissertation thesis. (Stanford University, CA, 2005)
7.M.C. Thurber, F. Grisch, B.J. Kirby, M. Votsmeier, R.K. Hanson, Measurements and modeling of acetone laser-induced fluorescence with implications for temperature-imaging diagnostics. Appl. Opt. 37, 4963-978 (1998)CrossRef ADS
8.B. Rossow, Photophysical Processes of Organic Fluorescent Molecules and Kerosene-em class="EmphasisTypeItalic ">Application to Combustion Engines, in Dissertation thesis (Université Paris-Sud 11, Paris, 2011)
9.B.H. Cheung, R.K. Hanson, 3-Pentanone fluorescence yield measurements and modeling at elevated temperatures and pressures. Appl. Phys. B 106, 755-68 (2012)CrossRef ADS
10.W. Koban, J.D. Koch, V. Sick, N. Wermuth, R.K. Hanson, C. Schulz, Predicting LIF signal strength for toluene and 3-pentanone under engine-related temperature and pressure conditions. Proc. Combust. Inst. 30, 1545-553 (2005)CrossRef
11.Y. He, E. Pollak, Theory of fluorescence decay of naphthalene: Was photoinduced cooling observed experimentally? J. Chem. Phys. 116, 6088-101 (2002)CrossRef ADS
12.H. Wadi, E. Pollak, Theory of laser cooling of polyatomic molecules. J. Chem. Phys. 110(24), 11890-1905 (1999)CrossRef ADS
13.J.R. Lakowicz, Principles of Fluorescence Spectroscopy, 3rd edn. (Springer, New York, 2006)CrossRef
14.Information, N.C.f.B., PubChem Compound Database
15.A. Bolovinos, J. Philis, E. Pantos, P. Tsekeris, G. Andritsopoulos, The methylbenzenes vis-a-vis benzene: comparison of their spectra in the valence-shell transitions region. J. Mol. Spectrosc. 94, 55-8 (1982)CrossRef ADS
16.L.J.H. Hoffmann, S. Marquardt, A.S. Gemechu, H. Baumg?rtel, The absorption spectra of anisole-h8, anisole-d3 and anisole-d8. The assignment of fundamental vibrations in the S0 and the S1 states. Phys. Chem. Chem. Phys. 8, 2360-377 (2006)CrossRef
17.M. Stockburger, H. Gattermann, W. Klusmann, Spectroscopic studies on naphthalene in the vapor phase. II. Fluorescence quantum yields from single vibronic levels in the first excited singlet state—behavior of higher excited singlet states. J. Chem. Phys. 63, 4529-540 (1975)CrossRef ADS
18.G.S. Beddard, S.J. Formosinho, G. Porter, Pressure effects on fluorescence from naphthalene vapor. Chem. Phys. Lett. 22(2), 235-38 (1973)CrossRef ADS
19.F. Ossler, T. Metz, M. Aldén, Picosecond laser-induced fluorescence from gas-phase polycyclic aromatic hydrocarbons at elevated temperatures I. Cell measurements. Appl. Phys. B. 72, 465-78 (2001)CrossRef ADS
20.Hamamatsu Photonics, http://?sales.?hamamatsu.?com/?assets/?pdf/?parts_?C/?e_?C5680.?pdf (2011)
21.N. Nijegorodov, R. Mabbs, D.P. Winkoun, Influence of weak and strong donor groups on the fluorescence parameters and the intersystem crossing rate constant. Spectrochim. Acta A 59, 595-06 (2003)CrossRef ADS
22.J.C. Hsieh, C.-S. Huang, E.C. Lim, Radiationless singlet deactivation in isolated large molecules. I Naphthalene, naphthol, and naphthylamine. J. Chem. Phys. 60, 4345-353 (1974)CrossRef ADS
23.M. Jacon, C. Lardeux, R. Lopez-Delgado, A. Tramer, On the “third decay channel-and vibrational redistribution problems in benzene derivatives. Chem. Phys. Lett. 24, 145-57 (1977)
24.C.S. Burton, W.A. Noyes, Electronic energy relaxation in toluene vapor. J. Chem. Phys. 49, 1705-714 (1968)CrossRef ADS
25.J.A. Draeger, The methylbenzenes—I. Vapor-phase vibrational fundamentals, internal rotations and a modified valence force field. Spectrochim. Acta Part A 41, 607-27 (1985)CrossRef ADS
26.J.E. Dec, J.O. Keller, High speed thermometry using two-line atomic fluorescence. Proc. Combust. Inst. 21, 1737-745 (1986)CrossRef - 作者单位：Thorsten Benzler (1)
Stephan Faust (1)
Thomas Dreier (1)
Christof Schulz (1)
1. IVG, Institute for Combustion and Gas Dynamics -Reactive Fluids, University of Duisburg-Essen, Duisburg, Germany - 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Electromagnetism, Optics and Lasers
Physical Chemistry
Laser Technology and Physics and Photonics
Quantum Optics, Quantum Electronics and Nonlinear Optics
Optical Spectroscopy and Ultrafast Optics
Physics and Applied Physics in Engineering - 出版者：Springer Berlin / Heidelberg
- ISSN：1432-0649
文摘
One- and two-ring aromatics such as toluene and naphthalene are frequently used molecular tracer species in laser-induced fluorescence (LIF) imaging diagnostics. Quantifying LIF signal intensities requires knowledge of the photo-physical processes that determine the fluorescence quantum yield. Collision-induced and intramolecular energy transfer processes in the excited electronic state closely interact under practical conditions. They can be separated through experiments at variable low pressures. Effective fluorescence lifetimes of gaseous toluene, 1,2,4-trimethylbenzene, anisole, naphthalene, and 1-methylnaphthalene diluted in CO2 were measured after picosecond laser excitation at 266 nm and time-resolved detection of fluorescence intensities. Measurements in an optically accessible externally heated cell between 296 and 475 K and 0.010- bar showed that effective fluorescence lifetimes generally decrease with temperature, while the influence of the bath-gas pressure depends on the respective target species and temperature. The results provide non-radiative and fluorescence rate constants and experimentally validate the effect of photo-induced cooling.