Thermally Activated Delayed Fluorescence of Dibenzophenazine-Cored Phenazaborines in Solid State: Anion Modulation of Photophysics

Lingagouder, Jaijanarthanan; Aota, Nae; Nakagawa, Riku; Luszczynska, Beata; Minakata, Satoshi; de Sousa, Leonardo Evaristo; de Silva, Piotr; Data, Przemyslaw; Takeda, Youhei

doi:https://doi.org/10.1021/acs.jpcc.4c05319

Thermally Activated Delayed Fluorescence of Dibenzophenazine-Cored Phenazaborines in Solid State: Anion Modulation of Photophysics

Lingagouder, Jaijanarthanan; Aota, Nae; Nakagawa, Riku et al.

Journal of Physical Chemistry C, 2024, 128(39), 16805-16812

アクセス数:618件（2025-07-26 22:07 集計）

固定URL: https://hdl.handle.net/11094/101030

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タイトル	Thermally Activated Delayed Fluorescence of Dibenzophenazine-Cored Phenazaborines in Solid State: Anion Modulation of Photophysics
著者	著者名 Lingagouder, Jaijanarthanan
	著者名 Aota, Nae
	著者名 Nakagawa, Riku
	著者名 Luszczynska, Beata
	NRID 1000090273599 1000090273599 ORCID 0000-0001-9619-445X 0000-0001-9619-445X researchmap permalink read0185263 read0185263 Scopus Author ID 7003640913 7003640913 著者名 Minakata, Satoshi
	著者名 de Sousa, Leonardo Evaristo
	著者名 de Silva, Piotr
	著者名 Data, Przemyslaw
	NRID 1000060608785 1000060608785 ORCID 0000-0001-9103-4238 0000-0001-9103-4238 researchmap permalink read0156438 read0156438 Scopus Author ID 12753487600 12753487600 著者名 Takeda, Youhei
内容	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry C, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.4c05319.
抄録	The relentless pursuit of high-performance organic light-emitting diodes (OLEDs) necessitates the exploration of novel materials with efficient light emission. Herein, we report donor-acceptor-donor (D-A-D) compounds, incorporating dibenzo[a,j]phenazine (DBPHZ) as the acceptor (A) and phenazaborine (PAzB) derivatives as the donors (D), embedded in various hosts, and investigate their impact on emission mechanisms. This study examines the effect of strategic fluorination of the trivalent boron center on the performance of the D-A-D compounds as solid-state emitters. The incorporation of fluoride into the D-A-D compounds within the matrix films resulted in a red shift in the photoluminescence (PL) emission. Additionally, we evaluated the influence of fluoride addition on the delayed emission characteristics of the D-A-D-containing films. This solid-state modulation technique demonstrated a potential applicability to OLEDs. Quantum chemical calculations elucidated how fluoride incorporation alters the photophysical properties of the compounds by modifying the electronic characteristics of the excited states.
出版者	American Chemical Society
収録物名	Journal of Physical Chemistry C
巻(号)	128(39)
ページ	16805-16812
刊行年月	2024-10-03
言語	英語
ハンドルURL	https://hdl.handle.net/11094/101030
PISSN	19327447
eISSN	19327455
関連情報 (isVersionOf)	DOI (出版社版) https://doi.org/10.1021/acs.jpcc.4c05319
アクセス権	embargoed access
権利情報	The full-text file will be made open to the public on 3 October 2025 in accordance with the publisher's policy.
出版タイプ	Accepted Manuscript
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
DCTERMS.bibliographicCitation	Journal of Physical Chemistry C. 2024, 128(39), p. 16805-16812
DC.title	Thermally Activated Delayed Fluorescence of Dibenzophenazine-Cored Phenazaborines in Solid State: Anion Modulation of Photophysics
DC.creator	Lingagouder, Jaijanarthanan
	Aota, Nae
	Nakagawa, Riku
	Luszczynska, Beata
	Minakata, Satoshi
	de Sousa, Leonardo Evaristo
	de Silva, Piotr
	Data, Przemyslaw
	Takeda, Youhei
DC.publisher	American Chemical Society
DC.language' scheme='DCTERMS.RFC1766	英語
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-10-03
DC.identifier	https://doi.org/10.1021/acs.jpcc.4c05319
DC.description	This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry C, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.4c05319.
DCTERMS.abstract	The relentless pursuit of high-performance organic light-emitting diodes (OLEDs) necessitates the exploration of novel materials with efficient light emission. Herein, we report donor-acceptor-donor (D-A-D) compounds, incorporating dibenzo[a,j]phenazine (DBPHZ) as the acceptor (A) and phenazaborine (PAzB) derivatives as the donors (D), embedded in various hosts, and investigate their impact on emission mechanisms. This study examines the effect of strategic fluorination of the trivalent boron center on the performance of the D-A-D compounds as solid-state emitters. The incorporation of fluoride into the D-A-D compounds within the matrix films resulted in a red shift in the photoluminescence (PL) emission. Additionally, we evaluated the influence of fluoride addition on the delayed emission characteristics of the D-A-D-containing films. This solid-state modulation technique demonstrated a potential applicability to OLEDs. Quantum chemical calculations elucidated how fluoride incorporation alters the photophysical properties of the compounds by modifying the electronic characteristics of the excited states.
DC.rights	The full-text file will be made open to the public on 3 October 2025 in accordance with the publisher's policy.
DC.format	101030
citation_title	Thermally Activated Delayed Fluorescence of Dibenzophenazine-Cored Phenazaborines in Solid State: Anion Modulation of Photophysics
citation_author	Lingagouder, Jaijanarthanan
	Aota, Nae
	Nakagawa, Riku
	Luszczynska, Beata
	Minakata, Satoshi
	de Sousa, Leonardo Evaristo
	de Silva, Piotr
	Data, Przemyslaw
	Takeda, Youhei
citation_publisher	American Chemical Society
citation_language	英語
citation_date	2024-10-03
citation_journal_title	Journal of Physical Chemistry C
citation_volume	128
citation_issue	39
citation_firstpage	16805
citation_lastpage	16812
citation_doi	https://doi.org/10.1021/acs.jpcc.4c05319
citation_public_url	https://hdl.handle.net/11094/101030

Thermally Activated Delayed Fluorescence of Dibenzophenazine-Cored Phenazaborines in Solid State: Anion Modulation of Photophysics

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