TITLE

Polarized micro-Raman spectroscopy study of pentacene thin films

AUTHOR(S)
Stenger, Ingrid; Frigout, Alexandre; Tondelier, Denis; Geffroy, Bernard; Ossikovski, Razvigor; Bonnassieux, Yvan
PUB. DATE
March 2009
SOURCE
Applied Physics Letters;3/30/2009, Vol. 94 Issue 13, p133301
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on polarized micro-Raman spectroscopy study of two pentacene thin films exhibiting different microstructures: a well-ordered sample and a more disordered one. We have investigated the frequency range of the intramolecular C–H bending modes in the plane of the pentacene molecule and proposed an interpretation of the Raman spectra. The use of symmetry properties of the two intramolecular (uncoupled) modes allowed us to unambiguously identify it among the five main contributions observed in this spectral range. The three other modes were assumed to be resulting from molecular coupling effect owing to their different behavior upon the samples microstructure.
ACCESSION #
37321937

 

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