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P‐182: New Deep‐Blue EML Materials Based on Fully Substituted Ethylene and Anthracene Derivatives
Author(s) -
Kim SooKang,
Park JongWook,
Kim KyoungSoo,
Choi CheolKyu,
Lee SangDo,
Kim SangWook
Publication year - 2007
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 - 10.1889/1.2785449
Subject(s) - anthracene , oled , blue light , fluorescence , materials science , deep blue , ethylene , photochemistry , nuclear chemistry , optoelectronics , chemistry , nanotechnology , organic chemistry , optics , physics , catalysis , layer (electronics)
New blue fluorescent compounds containing tetra‐substituted ethylene moieties have been designed and synthesized. By fabricating multilayered non‐doped OLED devices using these new blue materials, we achieved luminance efficiencies of 4.00 lm/W (10.33 cd/A at 8.1 V) for BPBAPE[CB‐104] and 1.82 lm/W (3.93 cd/A at 6.8 V) for BTPPA [CB‐105B] at 10 mA/cm 2 . The BPBAPE [CB‐104] and BTPPA [CB‐105B] devices exhibited sky blue emission (0.195, 0.303) and deep blue emission (0.159, 0.135) at 10mA/cm 2 respectively. We also synthesized new kinds of blue materials such as CB‐201, 202, and 203. CB‐203 device showed 3.11cd/A of current efficiency and (0.148, 0.088) CIE value.