@article{18429be1841740c0a89c8fa6496ca254,
title = "Photoluminescence spectra of oligo-paraphenylenevinylenes: A joint theoretical and experimental characterization",
abstract = "We present a joint theoretical and experimental characterization of the absorption and photoluminescence spectra of oligo-paraphenylenevinylenes containing from 2 to 5 phenylene rings. Attention is paid to the emission spectra and their vibronic progressions in order to shed light on the geometry relaxation phenomena in the lowest singlet excited state. The results indicate that the relaxation energy in the excited state increases with inverse chain length. For long conjugated chains, the relaxation energy of the bound electron-hole pair is extrapolated to be of the order of 0.14 eV and the most significant part of the geometry deformations are found to spread over a length of about 20 {\AA}.",
author = "J. Cornil and D. Beljonne and Heller, {C. M.} and Campbell, {I. H.} and Laurich, {B. K.} and Smith, {D. L.} and Bradley, {D. D.C.} and K. M{\"u}llen and Br{\'e}das, {J. L.}",
note = "Funding Information: The work in Mons is partly supported by the Belgian Federal Government {"}P61e d'Attraction In-teruniversitaire en Chimie Supramol6culaire et Catalyse{"}; the European Commission ESPRIT Program LEDFOS-8013; FNRS/FRFC; and an IBM Academic Joint Study. JC is Aspirant and DB is Charg6 de Recherches of the Belgian National Fund for Scientific Research (FNRS). The Sheffield-Mons collaboration has been supported by a European Commission HCM Network {"}Novel Molecular Materials for Third Order Nonlinear Optics{"}. DDCB thanks Los Alamos National Laboratory for hosting his stay. DDCB is currently the Royal Society Amer-sham International Senior Research fellow.",
year = "1997",
month = oct,
day = "24",
doi = "10.1016/S0009-2614(97)00986-X",
language = "English (US)",
volume = "278",
pages = "139--145",
journal = "Chemical Physics Letters",
issn = "0009-2614",
publisher = "Elsevier B.V.",
number = "1-3",
}