AUTHOR=Xu Ting , Liang Xiao , Xie Guohua 

TITLE=Solution-Processed Pure Blue Thermally Activated Delayed Fluorescence Emitter Organic Light-Emitting Diodes With Narrowband Emission

JOURNAL=Frontiers in Chemistry

VOLUME=Volume 9 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2021.691172

DOI=10.3389/fchem.2021.691172

ISSN=2296-2646

ABSTRACT=To satisfy the high color purity requirement of display technology with simply fabricated process, herein, solution-processed blue thermally activated delayed fluorescence (TADF) organic light-emitting diodes (OLEDs) with the narrow spectrum with a full width at half maximum (FWHM) of 32 nm and y color coordinate below 0.2 are demonstrated by employing a molecule containing boron and nitrogen) atoms (TBN-TPA) as the guest emitter in the emissive layer. The opposite resonance positions B-N atoms of TBN-TPA endows multi-resonance effect leading to high color purity.