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22.2: Novel Triplet Host Materials: High Performance Made Easy
Author(s) -
Becker Heinrich,
Vestweber Horst,
Gerhard Anja,
Stoessel Philipp,
Heil Holger,
Fortte Rocco
Publication year - 2005
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 - 10.1889/1.2036182
Subject(s) - carbazole , phosphorescence , host (biology) , materials science , optoelectronics , blocking (statistics) , key (lock) , computer science , nanotechnology , chemistry , physics , computer network , optics , photochemistry , ecology , computer security , fluorescence , biology
Novel materials are the key to high performance phosphorescent devices. New host materials show significant advantages over the currently used class of carbazole based materials. A significantly simpler device structure can be used applying the new material classes. Compared to the classical triplet device structure (employing electron transport layers and hole‐blocking layers) an even better EL performance in terms of efficiency and lifetime is observed.