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40.2: Efficiency Enhancement in Phosphorescent and Fluorescent OLEDs Utilizing Energy Transfer From Exciplex to Emitter
Author(s) -
Seo Satoshi,
Takahashi Tatsuyoshi,
Nowatari Hiromi,
Hosoumi Shunsuke,
Ishisone Takahiro,
Watabe Takeyoshi,
Mitsumori Satomi,
Ohsawa Nobuharu,
Yamazaki Shunpei
Publication year - 2015
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.10191
Subject(s) - common emitter , oled , phosphorescence , fluorescence , excimer , optoelectronics , materials science , quantum efficiency , energy transfer , optics , chemistry , nanotechnology , physics , molecular physics , layer (electronics)
This paper discusses the effectiveness of energy transfer from an exciplex to an emitter in both phosphorescent and fluorescent OLEDs. This energy transfer enhances the efficiency, lowers the drive voltage, and extends the lifetime. The increase in the quantum efficiency of a fluorescent OLED using this mechanism is also analyzed.