A record-high EQE of 7.65%@3300 cd m<sup>−2</sup> achieved in non-doped near-ultraviolet OLEDs based on novel D′–D–A type bipolar fluorophores upon molecular configuration engineering
Haoyuan Qi, Danyu Xie, Zexuan Gao, Shengnan Wang, Ling Peng, Yuchao Liu, Shian Ying, Dongge Ma, Shouke Yan
Abstract
. This is a record-high efficiency among all the reported non-doped NUV devices. Amazingly, an EQE of 7.85% and CIE coordinates of (0.161, 0.025) are achieved in the doped device. This demonstrates that the D'-D-A-type molecular structure has great potential for developing high-performance organic light-emitting materials and their optoelectronic applications.
Topics & Concepts
UltravioletDopingOLEDOptoelectronicsMaterials scienceAnalytical Chemistry (journal)ChemistryNanotechnologyEnvironmental chemistryLayer (electronics)Organic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsLuminescence and Fluorescent Materials