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Cover Picture: High Power Efficiency Blue‐to‐Green Organic Light‐Emitting Diodes Using Isonicotinonitrile‐Based Fluorescent Emitters (Chem. Asian J. 6/2017)
Author(s) -
Sasabe Hisahiro,
Onuma Natsuki,
Nagai Yuji,
Ito Takashi,
Kido Junji
Publication year - 2017
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201700208
Subject(s) - phenoxazine , oled , fluorescence , quantum efficiency , optoelectronics , materials science , diode , green light , electrical efficiency , photoluminescence , power (physics) , blue light , nanotechnology , optics , physics , layer (electronics) , quantum mechanics , medicine , phenothiazine , pharmacology
Masters of glowing potions ! A pyridinecarbonitrile derivative, specifically isonicotinotitrile, can generate a novel series of thermally activated delayed fluorescent (TADF) emitters by combining suitable donor unit(s) such as 9,10‐dihydro‐9,9‐dimethylacridine or phenoxazine. These emitters possessed reasonably high photoluminescent quantum yields of 70—79% and led to high‐power‐efficiency blue‐to‐green organic light‐emitting diodes (OLEDs) with a very low drive voltage and high external quantum efficiency of over 20 %. More information can be found in the Full Paper by Hisahiro Sasabe, Junji Kido et al. on page 648 in Issue 6, 2017 (DOI: 10.1002/asia.201601641).