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

Number of Access:620（2025-07-27 08:47 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/101030

Link to primary information

File	Format	Terms of use	Size	Views	Date.Available	Description	information
JPhysChemC_128_39_16805	pdf	None	2.69 MB		2025.10.03

Item Information

Output File Export EndNote Basic Export Mendeley

Title	Thermally Activated Delayed Fluorescence of Dibenzophenazine-Cored Phenazaborines in Solid State: Anion Modulation of Photophysics
Creator	CreatorName Lingagouder, Jaijanarthanan
	CreatorName Aota, Nae
	CreatorName Nakagawa, Riku
	CreatorName Luszczynska, Beata
	NRID 1000090273599 1000090273599 ORCID 0000-0001-9619-445X 0000-0001-9619-445X researchmap permalink read0185263 read0185263 Scopus Author ID 7003640913 7003640913 CreatorName Minakata, Satoshi
	CreatorName de Sousa, Leonardo Evaristo
	CreatorName de Silva, Piotr
	CreatorName Data, Przemyslaw
	NRID 1000060608785 1000060608785 ORCID 0000-0001-9103-4238 0000-0001-9103-4238 researchmap permalink read0156438 read0156438 Scopus Author ID 12753487600 12753487600 CreatorName Takeda, Youhei
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.
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.
Publisher	American Chemical Society
Source Title	Journal of Physical Chemistry C
Volume (Issue)	128(39)
Page	16805-16812
Date of Issued	2024-10-03
Language	English
Handle URL	https://hdl.handle.net/11094/101030
PISSN	19327447
eISSN	19327455
Relation.isVersionOf	DOI (Publisher Version) https://doi.org/10.1021/acs.jpcc.4c05319
Access Rights	embargoed access
CopyRight	The full-text file will be made open to the public on 3 October 2025 in accordance with the publisher's policy.
oaire:version	Accepted Manuscript
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
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	English
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	English
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

Link to primary information

Item Information

Show details