Facile Functionalization of Ambipolar, Nitrogen-Doped PAHs toward Highly Efficient TADF OLED Emitters.
D−A−D
N-doping
OLEDs
PAHs
TADF
dyes
functional aromatic materials
Journal
ACS applied materials & interfaces
ISSN: 1944-8252
Titre abrégé: ACS Appl Mater Interfaces
Pays: United States
ID NLM: 101504991
Informations de publication
Date de publication:
09 Aug 2023
09 Aug 2023
Historique:
medline:
28
7
2023
pubmed:
28
7
2023
entrez:
28
7
2023
Statut:
ppublish
Résumé
Despite promising optoelectronic features of N-doped polycyclic aromatic hydrocarbons (PAHs), their use as functional materials remains underdeveloped due to their limited post-functionalization. Facing this challenge, a novel design of N-doped PAHs with D-A-D electronic structure for thermally activated delayed fluorescence (TADF) emitters was performed. Implementing a set of auxiliary donors at the meta position of the protruding phenyl ring of quinoxaline triggers an increase in the charge-transfer property simultaneously decreasing the delayed fluorescence lifetime. This, in turn, contributes to a narrow (0.04-0.28 eV) singlet-triplet exchange energy split (Δ
Identifiants
pubmed: 37501285
doi: 10.1021/acsami.3c07552
pmc: PMC10416149
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
37728-37740Références
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