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Published on: October 24, 2017
Purely organic room-temperature phosphorescence sensitizers for OLEDs
Hao Liu1,2, Yan Fu1, Jacky W Y Lam2
1State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology Guangzhou 510640 China mszjzhao@scut.edu.cn.
Abstract:
Organometallic phosphorescent materials have been developed as critical luminescent materials for organic light-emitting diodes (OLEDs). However, most purely organic room-temperature phosphorescence (RTP) materials without any heavy metals still lack competitiveness for use in OLEDs. Recently, significant progress has been made regarding purely organic RTP materials, and their electroluminescence (EL) performances have become comparable to those of traditional phosphorescent complexes. In this perspective, advancements and proposed design strategies relating to efficient purely organic RTP materials are summarized. Furthermore, the promising application of these RTP materials as sensitizers for narrow-spectrum multi-resonance emitters is also discussed and an outlook is provided, which is conducive to the development of high-resolution OLEDs. It is expected that this perspective will provide valuable guidelines for advancing robust purely organic RTP sensitizers and further promoting the OLED industry.
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