Synthesis and Characterization of Oxazaborinin Phosphonate for Blue OLED Emitter Applications.
N,O ligands
Phospho-Fries rearrangement
difluoroboronic compound
fluorescence
materials science
Journal
Chemphyschem : a European journal of chemical physics and physical chemistry
ISSN: 1439-7641
Titre abrégé: Chemphyschem
Pays: Germany
ID NLM: 100954211
Informations de publication
Date de publication:
04 03 2019
04 03 2019
Historique:
received:
23
11
2018
revised:
03
01
2019
pubmed:
16
1
2019
medline:
16
1
2019
entrez:
16
1
2019
Statut:
ppublish
Résumé
A blue-light emitting material based on a boron complex containing heteroaromatic phosphonate ligand is synthesized and characterized. The Phospho-Fries rearrangement is used in the synthesis route of the ligand as a convenient method of introducing phosphonate groups into phenols. Structural, thermal and photophysical properties of the resulting oxazaborinin phosphonate compound have been characterized. DFT geometry optimizations were studied as well as the spatial position and symmetry of the HOMO and LUMO. Good thermal stability up to 250 °C enables vacuum deposition methods next to solution processing. Combining the work function with the optical band gap from UV-Vis measurements shows that band alignment is possible with standard contact materials. Photoluminescence reveals an emission peak at 428 nm, which is suitable for a blue light-emitter.
Identifiants
pubmed: 30645049
doi: 10.1002/cphc.201801087
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Pagination
665-671Subventions
Organisme : Department of Life Sciences and Chemistry
Pays : International
Organisme : Jacobs University Bremen
Pays : International
Informations de copyright
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.