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:info:doi/10.1103/PhysRevLett.79.1762

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タイトル	Dispersion of resonant raman scattering in π-conjugated polymers: Role of the even parity excitons
著者	Ozaki, M. Ozaki, M.
	Ehrenfreund, E. Ehrenfreund, E.
	Benner, R. E. Benner, R. E.
	Barton, T. J. Barton, T. J.
	Yoshino, K. Yoshino, K.
	Vardeny, Z. V. Vardeny, Z. V.
抄録	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.
公開者	American Physical Society
掲載誌名	Physical Review Letters
巻	79
号	9
開始ページ	1762
終了ページ	1765
刊行年月	1997-09-01
ISSN	00319007
ISSN	10797114
NCID	AA00773679
DOI (出版社版)	info:doi/10.1103/PhysRevLett.79.1762
URL	http://hdl.handle.net/11094/75864
権利情報	Copyright (1997) by the American Physical Society
言語	英語
カテゴリ	学術雑誌論文 Journal Article

著者版フラグ	publisher
NII資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
dcmi資源タイプ	text
DCTERMS.bibliographicCitation	Physical Review Letters.79(9) P.1762-P.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	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	1997-09-01
DC.identifier	info:doi/10.1103/PhysRevLett.79.1762
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/75864
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
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	英語
citation_date	1997-09-01
citation_journal_title	Physical Review Letters
citation_volume	79
citation_issue	9
citation_firstpage	1762
citation_lastpage	1765
citation_issn	00319007
citation_issn	10797114
citation_doi	info:doi/10.1103/PhysRevLett.79.1762
citation_public_url	http://hdl.handle.net/11094/75864

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