Premium
Ultrapure Blue Thermally Activated Delayed Fluorescence Molecules: Efficient HOMO–LUMO Separation by the Multiple Resonance Effect
Author(s) -
Hatakeyama Takuji,
Shiren Kazushi,
Nakajima Kiichi,
Nomura Shintaro,
Nakatsuka Soichiro,
Kinoshita Keisuke,
Ni Jingping,
Ono Yohei,
Ikuta Toshiaki
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201505491
Subject(s) - oled , materials science , fluorescence , homo/lumo , optoelectronics , photochemistry , ultrapure water , quantum yield , quantum efficiency , resonance fluorescence , molecule , blueshift , analytical chemistry (journal) , photoluminescence , optics , nanotechnology , organic chemistry , chemistry , physics , layer (electronics)
Ultrapure blue‐fluorescent molecules based on thermally activated delayed fluorescence are developed. Organic light‐emitting diode (OLED) devices employing the new emitters exhibit a deep blue emission at 467 nm with a full‐width at half‐maximum of 28 nm, CIE coordinates of (0.12, 0.13), and an internal quantum efficiency of ≈100%, which represent record‐setting performance for blue OLED devices.