Precise Functionalization of a Multiple-Resonance Framework Constructing Narrowband Organic Electroluminescent Materials with External Quantum Efficiency over 40

Precise Functionalization of a Multiple-Resonance Framework : Constructing Narrowband Organic Electroluminescent Materials with External Quantum Efficiency over 40

© 2022 Wiley-VCH GmbH.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 3 vom: 15. Jan., Seite e2205166
Auteur principal: Wang, Qingyang (Auteur)
Autres auteurs: Xu, Yincai, Yang, Tong, Xue, Jianan, Wang, Yue
Format: Article en ligne
Langue:English
Publié: 2023
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article high efficiency multiple resonance narrowband emission organic light-emitting diodes precise functionalization
Description
Résumé:© 2022 Wiley-VCH GmbH.
It is of important strategic significance to develop high-efficiency narrowband organic electroluminescent materials that can be employed to fabricate ultrahigh-definition displays with wide color gamut. This topic implies a great challenge to molecular design and synthesis, especially for the development of universality, diversity, scalability, and robustness of molecular architectonics. In this work, a synthetic methodology is demonstrated for functionalizing brominated BN-containing multiple-resonance (MR) frameworks with multifarious functional groups, such as donors, acceptors, and moieties without obvious push-pull electron properties. The m-DPAcP-BNCz-based organic light-emitting diode (OLED) exhibits green emission with a full-width at half-maximum (FWHM) of 28 nm and a maximum external quantum efficiency (EQE) of 40.6%. The outstanding performance of m-DPAcP-BNCz is attributed to the perfect integration of the inherent advantages of the MR framework and the donor-acceptor configuration, which can not only achieve bathochromic shift and narrowband emission, but also obtain high photoluminescence (PL) quantum yield (ΦPL ) and horizontal emitting dipole orientation ratio (Θ// ). This straightforward and efficient approach provides insightful guidance for the construction and enrichment of more high-efficiency narrowband emitters
Description:Date Completed 20.01.2023
Date Revised 23.04.2025
published: Print-Electronic
ErratumIn: Adv Mater. 2025 Apr 23:e2413909. doi: 10.1002/adma.202413909.. - PMID 40264383
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202205166