Published in
American Institute of Physics, Journal of Applied Physics, 2(102), p. 023107
DOI: 10.1063/1.2759188
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Generalized ellipsometry and dielectric tensor of rubrene single crystals
Journal article published in 2007 by
S. Tavazzi 
,
L. Silvestri,
M. Campione,
A. Borghesi,
A. Papagni,
P. Spearman,
A. Yassar ,
A. Camposeo,
D. Pisignano
,
L. Silvestri,
M. Campione,
A. Borghesi,
A. Papagni,
P. Spearman,
A. Yassar ,
A. Camposeo,
D. Pisignano
This paper was not found in any repository, but could be made available legally by the author.
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Abstract
The optical spectra of rubrene single crystals are reported and compared with those of the molecule in solution. From generalized ellipsometry and a proper biaxial model, the complex dielectric tensor is deduced in the spectral region of the excitonic transitions of the crystal between 2.2 eV band 4.4 eV, where the optical bands are assigned and rationalized on the basis of the molecular and crystal symmetries.