Time-resolved study of polaron pairs in conjugated polymers by two-correlated-pulses technique

Frankevich, Eugene; Nishihara, Yusuke; Fujii, Akihiko; Ozaki, Masanori; Yoshino, Katsumi

doi:https://doi.org/10.1103/PhysRevB.66.155203

アクセス数:115件（2024-04-19 19:17 集計）

固定URL: https://hdl.handle.net/11094/75675

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タイトル	Time-resolved study of polaron pairs in conjugated polymers by two-correlated-pulses technique
著者	著者名 Frankevich, Eugene
	著者名 Nishihara, Yusuke
	NRID 1000080304020 1000080304020 ORCID 0000-0003-3142-1193 0000-0003-3142-1193 researchmap permalink read0054804 read0054804 Scopus Author ID 35413649300 35413649300 著者名 Fujii, Akihiko
	NRID 1000050204186 1000050204186 ORCID 0000-0002-9556-4225 0000-0002-9556-4225 researchmap permalink read0014092 read0014092 Scopus Author ID 55490143900 55490143900 著者名 Ozaki, Masanori
	NRID 1000070029205 1000070029205 著者名 Yoshino, Katsumi
抄録	Formation of polaron pairs is studied in photoconducting conjugated polymers such as substituted polythiophenes.The polaron pairs show themselves in the second order processes that were the main supplier of free charge carrier at high excitation density provided by femtosecond laser pulses. Two-correlated-pulses technique are used, and permitted to resolve kinetics of the free charge carrier formation within the picosecond time domain. The external electrical field is shown to change a relative amount of free charge carriers formed in the first and second order processes ~i.e., by dissociation of primarily formed polaron pairs and by dissociation of the pairs formed as a result of recombination of primary pairs!. A method of estimation of intercharge distances in the pairs based on the action of the electrical field is suggested and shows that polaron pairs of two intercharge distances ~about 4 and 10 nm! are formed at the photoexcitation of polythiophenes studied.
出版者	American Physical Society
収録物名	Physical Review B
巻(号)	66(15)
ページ	155203-155203
刊行年月	2002-10-04
言語	英語
ハンドルURL	https://hdl.handle.net/11094/75675
PISSN	24699950
eISSN	24699969
NCID	AA11187113
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1103/PhysRevB.66.155203
アクセス権	open access
権利情報	Copyright (2002) by the American Physical Society
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

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 B. 2002, 66(15), p. 155203-155203
DC.title	Time-resolved study of polaron pairs in conjugated polymers by two-correlated-pulses technique
DC.creator	Frankevich, Eugene
	Nishihara, Yusuke
	Fujii, Akihiko
	Ozaki, Masanori
	Yoshino, Katsumi
DC.publisher	American Physical Society
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2002-10-04
DC.identifier	https://doi.org/10.1103/PhysRevB.66.155203
DCTERMS.abstract	Formation of polaron pairs is studied in photoconducting conjugated polymers such as substituted polythiophenes.The polaron pairs show themselves in the second order processes that were the main supplier of free charge carrier at high excitation density provided by femtosecond laser pulses. Two-correlated-pulses technique are used, and permitted to resolve kinetics of the free charge carrier formation within the picosecond time domain. The external electrical field is shown to change a relative amount of free charge carriers formed in the first and second order processes ~i.e., by dissociation of primarily formed polaron pairs and by dissociation of the pairs formed as a result of recombination of primary pairs!. A method of estimation of intercharge distances in the pairs based on the action of the electrical field is suggested and shows that polaron pairs of two intercharge distances ~about 4 and 10 nm! are formed at the photoexcitation of polythiophenes studied.
DC.rights	Copyright (2002) by the American Physical Society
DC.format	application/pdf
citation_title	Time-resolved study of polaron pairs in conjugated polymers by two-correlated-pulses technique
citation_author	Frankevich, Eugene
	Nishihara, Yusuke
	Fujii, Akihiko
	Ozaki, Masanori
	Yoshino, Katsumi
citation_publisher	American Physical Society
citation_language	英語
citation_date	2002-10-04
citation_journal_title	Physical Review B
citation_volume	66
citation_issue	15
citation_firstpage	155203
citation_lastpage	155203
citation_doi	https://doi.org/10.1103/PhysRevB.66.155203
citation_public_url	https://hdl.handle.net/11094/75675

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