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Front Cover: A Novel trans ‐1‐(9‐Anthryl)‐2‐phenylethene Derivative Containing a Phenanthroimidazole Unit for Application in Organic Light‐Emitting Diodes (Chem. Asian J. 1/2018)
Author(s) -
Zhou glin,
Wang Shirong,
Xiao Yin,
Li Xianggao
Publication year - 2018
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.201701628
Subject(s) - moiety , suzuki reaction , oled , derivative (finance) , materials science , quantum yield , green light , alkyne , diode , pyran , heck reaction , chemistry , palladium , optoelectronics , medicinal chemistry , catalysis , layer (electronics) , fluorescence , stereochemistry , blue light , organic chemistry , nanotechnology , optics , physics , financial economics , economics
Planet of the APE(‐PPI)s ! A blue–green emitting material (APE‐PPI) containing a 1‐(9‐anthryl)‐2‐phenylethene ( t ‐APE) core and a phenanthroimidazole (PI) moiety was synthesized. APE‐PPI was conveniently obtained in good yield by using a palladium‐catalyzed Suzuki coupling reaction. Furthermore, a white organic light‐emitting diode (WOLED) was fabricated by employing APE‐PPI as a blue–green emitting layer and 4‐(dicyanomethylene)‐2‐ tert ‐butyl‐6‐(1,1,7,7‐tetramethyljulolidin‐4‐yl‐vinyl)‐4 H ‐pyran (DCJTB) doped in tris‐(8‐hydroxyquinolinato)aluminum (Alq 3 ) as a red–green emitting layer, realizing three‐color emission with a high color rendering index (CRI) of 85. This value is already sufficient for many commercial lighting applications. More information can be found in the Full Paper by Xianggao Li et al. on page 81 in Issue 1, 2018 (DOI: 10.1002/asia.201701371).