Development of new hole-transporting amorphous molecular materials for organic electroluminescent devices and their charge-transport properties

Yasuhiko Shirota; Kenji Okumoto

doi:10.1117/12.416890

2 February 2001 Development of new hole-transporting amorphous molecular materials for organic electroluminescent devices and their charge-transport properties

Yasuhiko Shirota, Kenji Okumoto

Author Affiliations +

Proceedings Volume 4105, Organic Light-Emitting Materials and Devices IV; (2001) https://doi.org/10.1117/12.416890
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

New hole-transporting amorphous molecular materials with high glass-transition temperatures for organic electroluminescent devices have been developed and their charge-transport properties investigated. They comprise 4,4',4'-tris[biphenyl-2-yl-(phenyl) amino]triphenylamine, 4,4'4'-tris[biphenyl-3-yl- (phenyl)amino]triphenylamine, and 4,4'4'-tris- [biphenyl-4-yl-(3-methylphenyl)amino]triphenylamine, 4,4'4'-tris[9,9-dimethyl-2- fluorenyl(phenyl)amino]triphenylamine, N,N'-di(biphenyl- 2-yl)-N,N'-diphenyl-[1,1'-biphenyl]-4,4'-diamine, N,N'-di(biphenyl-3-yl)-N,N'-diphenyl-[1,1'-biphenyl]- 4,4'-diamine, N,N'-di(biphenyl-4-yl)-N,N'-diphenyl-[1,1'- biphenyl]-4,4'-diamine, N,N'-bis(9,9-dimethyl-2- fluorenyl)-N,N'-diphenyl-9,9-dimethylfluorene-2,7-diamine, and N,N,N',N'-tetrakis(9,9-dimethyl-2-fluorenyl)-[1,1'- biphenyl]-4,4'-diamine. Hole drift mobilities of these materials were determined by the time-of-flight method, and the electric field and temperature dependencies of drift mobility were analyzed in terms of the disorder formalism.

Citation Download Citation

Yasuhiko Shirota and Kenji Okumoto "Development of new hole-transporting amorphous molecular materials for organic electroluminescent devices and their charge-transport properties", Proc. SPIE 4105, Organic Light-Emitting Materials and Devices IV, (2 February 2001); https://doi.org/10.1117/12.416890

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