Investigation of low-temperature line broadening mechanisms in organic amorphous solids with photon echo, hole-burning and single-molecule spectroscopy

We present the first comparative analysis of spectral data obtained at low temperatures with three different highly selective techniques: two-pulse photon echo (2PE), hole-burning (HB) and single-molecule spectroscopy (SMS) of a polyisobutylene glass (PIB) doped with tetra-tert-butylterrylene (TBT)....

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Bibliographic Details
Published in:Chemical physics letters 1998-06, Vol.289 (5-6), p.553-558
Main Authors: Zilker, S.J., Friebel, J., Haarer, D., Vainer, Yu.G., Personov, R.I.
Format: Article
Language:English
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Summary:We present the first comparative analysis of spectral data obtained at low temperatures with three different highly selective techniques: two-pulse photon echo (2PE), hole-burning (HB) and single-molecule spectroscopy (SMS) of a polyisobutylene glass (PIB) doped with tetra-tert-butylterrylene (TBT). Our 2PE- and HB-experiments are compared with literature data [Tittel et al., J. Lumin. 64 (1995) 1] obtained by SMS. It is found that the linewidth measured by HB is significantly larger than the mean of the linewidth distribution obtained by SMS. We conclude that a T2-dispersion plays an important role in the formation of the linewidth dispersion in TBT/PIB.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(98)00466-7