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13‐1: Invited Paper: Advances in Deep Blue Emitters for Highly Efficient and Long Lifetime Organic Light Emitting Diodes
Author(s) -
Oh Hyoung Yun,
Kim Ockhee
Publication year - 2018
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.12501
Subject(s) - oled , full width at half maximum , optoelectronics , materials science , deep blue , quantum yield , diode , photoluminescence , quantum efficiency , blue light , solvatochromism , optics , nanotechnology , chemistry , photochemistry , physics , fluorescence , layer (electronics)
Here, we present new efficient deep‐blue emitters developed by using proper molecular design for high efficiency and long lifetime organic light emitting diodes (OLEDs). These emitters not only show high photoluminescence quantum yield but also demonstrate very small solvatochromic effect with pure deep‐blue color and excellent thermal properties. Blue OLEDs with new blue emitters exhibited high external quantum efficiency, appropriate CIE color coordinates with narrow full width half maximum (FWHM) and most importantly long operational lifetime compared to those of previously reported emitters.