Polarized reflectivity spectra of stretch-oriented poly(p-phenylene-vinylene)

D. Comoretto; G. Dellepiane; D. Moses; J. Cornil; D. A. Dos Santos; J. L. Brédas

doi:10.1016/S0009-2614(98)00319-4

Polarized reflectivity spectra of stretch-oriented poly(p-phenylene-vinylene)

D. Comoretto^*, G. Dellepiane, D. Moses, J. Cornil, D. A. Dos Santos, J. L. Brédas

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

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.

Original language	English (US)
Pages (from-to)	1-7
Number of pages	7
Journal	Chemical Physics Letters
Volume	289
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(98)00319-4
State	Published - Jun 5 1998
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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@article{48d36ea078e047cea0f0aa9bcf03f051,

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.}",

year = "1998",

month = jun,

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doi = "10.1016/S0009-2614(98)00319-4",

language = "English (US)",

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T1 - Polarized reflectivity spectra of stretch-oriented poly(p-phenylene-vinylene)

AU - Comoretto, D.

AU - Dellepiane, G.

AU - Moses, D.

AU - Cornil, J.

AU - Dos Santos, D. A.

AU - Brédas, J. L.

PY - 1998/6/5

Y1 - 1998/6/5

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0002646865&partnerID=8YFLogxK

U2 - 10.1016/S0009-2614(98)00319-4

DO - 10.1016/S0009-2614(98)00319-4

M3 - Article

AN - SCOPUS:0002646865

SN - 0009-2614

VL - 289

SP - 1

EP - 7

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-2

ER -

Polarized reflectivity spectra of stretch-oriented poly(p-phenylene-vinylene)

Abstract

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