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

被引：24

作者：

Comoretto, D

Dellepiane, G

Moses, D

Cornil, J

dos Santos, DA

Bredas, JL

机构：

[1] Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy

[2] Univ Calif Santa Barbara, Inst Polymers & Organ Solids, Santa Barbara, CA 93106 USA

[3] Univ Mons, Ctr Rech Elect & Photon Mol, Serv Chim Mat Nouveaux, B-7000 Mons, Belgium

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 289卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(98)00319-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 7

页数：7

共 32 条

[1] Optical absorption in the substituted phenylene-based conjugated polymers: Theory and experiment
Chandross, M
Mazumdar, S
Liess, M
Lane, PA
Vardeny, ZV
Hamaguchi, M
Yoshino, K
[J]. PHYSICAL REVIEW B, 1997, 55 (03): : 1486 - 1496
[2] Long-lived photoexcited states in polydiacetylenes with different molecular and supramolecular organization
Comoretto, D
Moggio, I
Cuniberti, C
Dellepiane, G
Giardini, ME
Borghesi, A
[J]. PHYSICAL REVIEW B, 1997, 56 (16): : 10264 - 10270
[3] OPTICAL-PROPERTIES OF HIGHLY ORIENTED FIBROUS POLYACETYLENE
COMORETTO, D
TUBINO, R
DELLEPIANE, G
MUSSO, GF
BORGHESI, A
PIAGGI, A
LANZANI, G
[J]. PHYSICAL REVIEW B, 1990, 41 (06): : 3534 - 3539
[4] COMORETTO D, UNPUB
[5] Excimers in poly(phenylene vinylene) and its derivatives
Conwell, EM
[J]. SYNTHETIC METALS, 1997, 85 (1-3) : 995 - 999
[6] Effects of intermolecular interactions on the lowest excited state in luminescent conjugated polymers and oligomers
Cornil, J
Heeger, AJ
Bredas, JL
[J]. CHEMICAL PHYSICS LETTERS, 1997, 272 (5-6) : 463 - 470
[7] ELECTRONIC-STRUCTURE OF PHENYLENE VINYLENE OLIGOMERS - INFLUENCE OF DONOR-ACCEPTOR SUBSTITUTIONS
CORNIL, J
DOSSANTOS, DA
BELJONNE, D
BREDAS, JL
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (15) : 5604 - 5611
[8] OPTICAL ABSORPTIONS IN POLY(PARA-PHENYLENE VINYLENE) AND POLY(2,5-DIMETHOXY-1,4-PARAPHENYLENE VINYLENE) OLIGOMERS
CORNIL, J
BELJONNE, D
FRIEND, RH
BREDAS, JL
[J]. CHEMICAL PHYSICS LETTERS, 1994, 223 (1-2) : 82 - 88
[9] Cornil J, 1995, CHEM PHYS LETT, V247, P425, DOI 10.1016/S0009-2614(95)01224-9
[10] Influence of interchain interactions on the absorption and luminescence of conjugated oligomers and polymers:: A quantum-chemical characterization
Cornil, J
dos Santos, DA
Crispin, X
Silbey, R
Brédas, JL
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (06) : 1289 - 1299

← 1 2 3 4 →