Laser-induced fluorescence spectrometry of polycyclic aromatic hydrocarbons isolated in vapor-deposited n-alkane matrices

1980 ◽  
Vol 52 (6) ◽  
pp. 920-924 ◽  
Author(s):  
Jon R. Maple ◽  
E. L. Wehry ◽  
Gleb. Mamantov
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Laser Induced Fluorescence ◽  
Fluorescence Spectrometry ◽  
Polycyclic Aromatic

scholarly journals Absorption and Laser Induced Fluorescence Spectroscopy of Neutral Polycyclic Aromatic Hydrocarbons in Argon matrices

2015 ◽  
Vol 11 (A29A) ◽  
Author(s):  
Salma Bejaoui ◽  
Farid Salama ◽  
Ella Sciamma-O'Brien
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Fluorescence Spectra ◽  
Laser Induced Fluorescence ◽  
Broad Emission Band ◽  
Band Emission ◽  
Polycyclic Aromatic ◽  
Argon Matrices ◽  
Extended Red Emission ◽  
Solid Argon

Polycyclic aromatic hydrocarbons (PAHs) are considered as plausible carriers for the extended red emission (ERE), a photoluminescent process associated with a wide variety of interstellar environments, as well as for broad emission band features seen in cometary spectra. We report the absorption spectra of phenanthrene, anthracene, fluoranthene, pentacene, pyrene, chrysene and triphenylene isolated at 10 K in solid argon matrices together with laser induced fluorescence (LIF) spectra at 355 nm of matrix-isolated anthracene and fluoranthene. LIF spectra are compared with the UV/blue fluorescence spectra of the Red Rectangle Nebula (RR). The LIF spectra measured in solid Ar matrices have been shifted to the predicted position of the PAH band emission in the gas phase for comparison with the astronomical observations (Fig. 1).

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