Near gap region analysis in HREELS spectra of alpha-oligothiophene thin films

Authors
Pellegrino, O Vilar, MR Horowitz, G Kouki, F do Rego, AMB
Citation
O. Pellegrino et al., Near gap region analysis in HREELS spectra of alpha-oligothiophene thin films, SYNTH METAL, 121(1-3), 2001, pp. 1437-1438
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
121
Issue
1-3
Year of publication
2001
Pages
1437 - 1438
Database
ISI
SICI code
0379-6779(20010315)121:1-3<1437:NGRAIH>2.0.ZU;2-R
Abstract
High resolution electron energy loss spectroscopy (HREELS), in impact mecha nism regime, was used to investigate the near gap range of alpha -quaterthi ophene, alpha -quinquethiophene and alpha -sexithiophene in thin films. Urb ach's energy E-U was estimated for each film and found to be in good agreem ent with E-U values found by optical spectroscopy for other organic materia ls.