Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Letter
Chrysene-based Electron-transporters Realizing Highly Efficient and Stable Phosphorescent OLEDs
Taiki WatanabeHisahiro SasabeTsukasa OwadaTomohiro MaruyamaYuichiro WatanabeHiroshi KatagiriJunji Kido
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2019 Volume 48 Issue 5 Pages 457-460

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Abstract

A series of chrysene-based electron-transporters named BnPyPCs (n = 2, 3, 4) end-capped with two 3,5-di(pyridin-n-yl)phenyl moieties with high thermal and electrical stability were successfully developed. BnPyPCs showed Tm values greater than 390 °C and were used for highly efficient green phosphorescent OLEDs with maximum external quantum efficiency values greater than 20% and long operation lifetime at high brightness of approximately 11000 cd m−2 at a current density of 25 mA cm−2.

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© 2019 The Chemical Society of Japan
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