Temperature dependence of single-molecule line widths: Terrylene in n-alkane matrices

Single-molecule microscopy has been used to investigate the temperature dependence of terrylene absorption lines in n-alkane matrices. Measurements have been performed for terrylene/hexadecane and terrylene, decane in the temperature range 1.7 8 K. The investigation of many molecules in parallel all...

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Bibliographic Details
Published inJournal of luminescence Vol. 76; pp. 279 - 282
Main Authors Irngartinger, Thomas, Renn, Alois, Zumofen, Gert, Wild, Urs P.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 01.02.1998
Elsevier
Subjects
Atomic and molecular physics
Exact sciences and technology
Intensities and shapes of molecular spectral lines and bands
Line and band widths, shapes, and shifts
Molecular properties and interactions with photons
n-alkane
Physics
Single-molecule spectroscopy
Terrylene
n-alkane
Single-molecule spectroscopy
Terrylene
Solid solutions
Temperature effects
Condensed aromatics
Fluorescence
Hydrocarbons
Experimental study
Spectral line width
Organic compounds
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Summary:Single-molecule microscopy has been used to investigate the temperature dependence of terrylene absorption lines in n-alkane matrices. Measurements have been performed for terrylene/hexadecane and terrylene, decane in the temperature range 1.7 8 K. The investigation of many molecules in parallel allows us to determine line width distributions as well as for the analysis the underlying single-molecule properties. The temperature dependence of the individual lines was found to obey a thermal activation law. The results for activation energies are consistent with librational frequencies observed in the excitation and emission spectra.
ISSN:0022-2313
1872-7883
DOI:10.1016/S0022-2313(97)00152-X