Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 28, Issue 27, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202104624
Keywords
color-tunable; decoration strategy; multi-resonance; narrowband; para boron position
Categories
Funding
- National Key Basic Research and Development Program of China [2020YFA0715000, 2017YFA0204501]
- Guangdong Major Project of Basic and Applied Basic Research [2019B030302009]
- National Science Fund of China [51903137, 61890942]
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory [XHT2020-005]
- Young Elite Scientists Sponsorship Program by CAST [2019-2021QNRC]
- Tsinghua-Foshan Innovation Special Fund (TFISF) [2020THFS0116]
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This article discusses the need for narrowband, full-color, and quenching-resistant emitters for the next generation high-resolution displays, and highlights an effective decoration strategy for the para B position to address challenges faced by existing materials in terms of light-color regulation and emission characteristics.
Narrowband, full-color, and quenching-resistant emitters are urgently needed for the next generation high-resolution displays. Though the flourishment of narrowband multiple resonance (MR) emitters in blue region, these materials still face thorny challenges such as effective light-color regulation strategies and concentration-induced spectral broadening/emission quenching. Herein, the research status of an effective decoration strategy for para B position is highlighted. On one hand, the introduction of an electron donor or acceptor could induce a hypsochromic- or bathochromic-shift emission, respectively, without undesirable FWHM broadening. On the other hand, a more advanced molecular motif is further proposed through adopting a peripheral benzene ring on the para position of the B-substituted phenyl in MR core to construct the high-purity, high-efficiency, quenching-resistant and stable MR emitters. Such concept is expected to provide a possible way for the modification, optimization and expansion of MR emitters to meet more possible applications.
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