A Phenazaborin-Based High-Efficiency Blue Delayed Fluorescence Material
In Seob Park, Masaki Numata, Chihaya Adachi,* and Takuma Yasuda*
10.1246/bcsj.20150399

A highly efficient blue thermally activated delayed fluorescence
material based on phenazaborin and spiroacridan units was developed. A
blue-emitting organic light-emitting diode containing the phenazaborin
derivatives exhibited a high external electroluminescence quantum
efficiency of 18.2%.
Since the first practical multilayered organic electroluminescent (EL) device was reported in 1987, the research area of organic light-emitting diodes (OLEDs) has developed rapidly and OLEDs have been applied to advanced flat-panel displays. The OLEDs have been classified into two major categories. The first is fluorescent materials, thermally activated delayed fluorescence tadf oled
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