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A Single Phosphine Oxide Host for High‐Efficiency White Organic Light‐Emitting Diodes with Extremely Low Operating Voltages and Reduced Efficiency Roll‐Off
Author(s) -
Han Chunmiao,
Xie Guohua,
Xu Hui,
Zhang Zhensong,
Xie Linghai,
Zhao Yi,
Liu Shiyong,
Huang Wei
Publication year - 2011
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.201100322
Subject(s) - oled , diode , optoelectronics , materials science , host (biology) , voltage , oxide , phosphine oxide , computer science , nanotechnology , electrical engineering , phosphine , chemistry , engineering , biochemistry , layer (electronics) , metallurgy , biology , catalysis , ecology
Highly efficient white organic light‐emitting diodes (WOLEDs) with a simple, single‐host‐based structure are fabricated to realize the state‐of‐the‐art performance of extremely low driving voltages, high efficiencies, and low efficiency roll‐offs. This is the first single‐host‐based WOLED with both high efficiency and extremely low operating voltage at practical luminescence, demonstrating the great potential of these WOLEDs for portable display and lighting applications.