Stable pure-blue hyperfluorescence organic light-emitting diodes with high-efficiency and narrow emission
Chin-Yiu Chan, Masaki Tanaka, Yi-Ting Lee, Yiu-Wing Wong, Hajime Nakanotani, Takuji Hatakeyama, and Chihaya Adachi
Nature Photonics, 15, 203–207, (2021)
https://www.nature.com/articles/s41566-020-00745-z
It is challenging to produce stable blue OLEDs with high efficiency and color purity. The researchers fabricated a new OLED showing pure-blue emission with high efficiency and stability. Their optimized device consists of a 2-unit stacked tandem OLED with a hyperfluorescent emitting layer. Setfos was used to fit angular photoluminescence data and determine the orientation of the dipoles of the TADF emitter.