@article{e0d71f506cd94381ac9e3b790909188d,
title = "Polarized reflectivity spectra of stretch-oriented poly(p-phenylene-vinylene)",
abstract = "We report polarized, near-normal incidence, absolute reflectivity spectra of highly stretch-oriented unsubstituted poly(p-phenylene-vinylene). The data show a well-resolved vibronic progression in the lowest optical transition, a high dichroic ratio and weak signals due to conjugated segments with reduced effective conjugation length. On the high-energy side of the spectra, other transitions mainly related to excited states involving localized levels are detected. The low-temperature spectra confirm these assignments. The polarization properties of the reflectivity spectra are discussed in relation to correlated quantum-chemical calculations.",
author = "D. Comoretto and G. Dellepiane and D. Moses and J. Cornil and {Dos Santos}, {D. A.} and Br{\'e}das, {J. L.}",
note = "Funding Information: We thank Dr. T. Ohnishi and Dr. T. Noguchi for providing us with the PPV samples. The work in Genova is supported by the Italian Ministry of University and of Scientific and Technological Research (MURST), and by the National Research Council (CNR), Italy. We thank the Optical Spectroscopy Laboratory of the INFM unit at the Department of Physics `A. Volta', University of Pavia, for the instrumental facilities used in the present work. The work in Mons is partly supported by the `P{\^o}le d'Attraction Interuniversitaire en Chimie Supramol{\'e}culaire et Catalyse Supramol{\'e}culaire (PAI 4/11)', the Belgian National Fund for Scientific Research FNRS/FRFC and an IBM Academic Joint Study. JC is Charg{\'e} de Recherches of the FNRS.",
year = "1998",
month = jun,
day = "5",
doi = "10.1016/S0009-2614(98)00319-4",
language = "English (US)",
volume = "289",
pages = "1--7",
journal = "Chemical Physics Letters",
issn = "0009-2614",
publisher = "Elsevier B.V.",
number = "1-2",
}