Dispersion of resonant raman scattering in π-conjugated polymers: Role of the even parity excitons

Ozaki, M.; Ehrenfreund, E.; Benner, R. E.; Barton, T. J.; Yoshino, K.; Vardeny, Z. V.

doi:https://doi.org/10.1103/PhysRevLett.79.1762

Dispersion of resonant raman scattering in π-conjugated polymers: Role of the even parity excitons

Ozaki, M.; Ehrenfreund, E.; Benner, R. E. et al.

Physical Review Letters, 1997, 79(9), 1762-1765

Number of Access:350（2025-09-02 10:20 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/75864

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Title	Dispersion of resonant raman scattering in π-conjugated polymers: Role of the even parity excitons
Creator	NRID 1000050204186 1000050204186 ORCID 0000-0002-9556-4225 0000-0002-9556-4225 researchmap permalink read0014092 read0014092 Scopus Author ID 55490143900 55490143900 CreatorName Ozaki, M.
	CreatorName Ehrenfreund, E.
	CreatorName Benner, R. E.
	CreatorName Barton, T. J.
	NRID 1000070029205 1000070029205 CreatorName Yoshino, K.
	CreatorName Vardeny, Z. V.
Abstract	Resonant Raman scattering dispersion of the most strongly coupled phonon frequencies with the excitation laser photon energy is measured in terms of a dispersion rate parameter D and quantified in a variety of p conjugated polymer films. D was found to be large in nonluminescent polymers and small in luminescent polymers. We show that D is determined by the dependence of the even parity excitons (Ag) on the polymer conjugation length, and this may serve as a useful spectroscopy for the 2Ag exciton in nonluminescent polymers where it is otherwise optically inactive.
Publisher	American Physical Society
Source Title	Physical Review Letters
Volume (Issue)	79(9)
Page	1762-1765
Date of Issued	1997-09-01
Language	English
Handle URL	https://hdl.handle.net/11094/75864
PISSN	00319007
eISSN	10797114
NCID	AA00773679
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1103/PhysRevLett.79.1762
Access Rights	open access
CopyRight	Copyright (1997) by the American Physical Society
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Physical Review Letters. 1997, 79(9), p. 1762-1765
DC.title	Dispersion of resonant raman scattering in π-conjugated polymers: Role of the even parity excitons
DC.creator	Ozaki, M.
	Ehrenfreund, E.
	Benner, R. E.
	Barton, T. J.
	Yoshino, K.
	Vardeny, Z. V.
DC.publisher	American Physical Society
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	1997-09-01
DC.identifier	https://doi.org/10.1103/PhysRevLett.79.1762
DCTERMS.abstract	Resonant Raman scattering dispersion of the most strongly coupled phonon frequencies with the excitation laser photon energy is measured in terms of a dispersion rate parameter D and quantified in a variety of p conjugated polymer films. D was found to be large in nonluminescent polymers and small in luminescent polymers. We show that D is determined by the dependence of the even parity excitons (Ag) on the polymer conjugation length, and this may serve as a useful spectroscopy for the 2Ag exciton in nonluminescent polymers where it is otherwise optically inactive.
DC.rights	Copyright (1997) by the American Physical Society
DC.format	75864
citation_title	Dispersion of resonant raman scattering in π-conjugated polymers: Role of the even parity excitons
citation_author	Ozaki, M.
	Ehrenfreund, E.
	Benner, R. E.
	Barton, T. J.
	Yoshino, K.
	Vardeny, Z. V.
citation_publisher	American Physical Society
citation_language	English
citation_date	1997-09-01
citation_journal_title	Physical Review Letters
citation_volume	79
citation_issue	9
citation_firstpage	1762
citation_lastpage	1765
citation_doi	https://doi.org/10.1103/PhysRevLett.79.1762
citation_public_url	https://hdl.handle.net/11094/75864

Dispersion of resonant raman scattering in π-conjugated polymers: Role of the even parity excitons

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