The blue aluminum and gallium chelates for OLEDs

被引:26
作者
Deaton, Joseph C. [1 ]
Place, David W. [1 ]
Brown, Christopher T. [1 ]
Rajeswaran, Manju [1 ]
Kondakova, Marina E. [1 ]
机构
[1] Eastman Kodak Co, Res Labs, Rochester, NY 14650 USA
关键词
aluminum complexes; gallium complexes; electroluminescence; fluorescence; phosphorescence; sublimation;
D O I
10.1016/j.ica.2007.07.008
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Pentacoordinate Al and Ga complexes of the type ML2OR, where L is a 2- methyl- 8- quinolinolate and OR is a monodentate, anionic O donor ligand, were optimized for robust use in vapor-deposited OLEDs. Photophysical, thermal, and crystallographic properties relevant to OLEDs are reported. The utility of the complexes is illustrated in new formulations for blue fluorescent and red phosphorescent OLEDs. (c) 2007 Elsevier B. V. All rights reserved.
引用
收藏
页码:1020 / 1035
页数:16
相关论文
共 36 条
[1]   Nearly 100% internal phosphorescence efficiency in an organic light-emitting device [J].
Adachi, C ;
Baldo, MA ;
Thompson, ME ;
Forrest, SR .
JOURNAL OF APPLIED PHYSICS, 2001, 90 (10) :5048-5051
[2]   Very high-efficiency green organic light-emitting devices based on electrophosphorescence [J].
Baldo, MA ;
Lamansky, S ;
Burrows, PE ;
Thompson, ME ;
Forrest, SR .
APPLIED PHYSICS LETTERS, 1999, 75 (01) :4-6
[3]   Correlation between molecular packing and optical properties in different crystalline polymorphs and amorphous thin films of mer-tris(8-hydroxyquinoline)aluminum(III) [J].
Brinkmann, M ;
Gadret, G ;
Muccini, M ;
Taliani, C ;
Masciocchi, N ;
Sironi, A .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (21) :5147-5157
[4]   Structure and spectroscopic properties of the crystalline structures containing meridional and facial isomers of tris(8-hydroxyquinoline) gallium(III) [J].
Brinkmann, M ;
Fite, B ;
Pratontep, S ;
Chaumont, C .
CHEMISTRY OF MATERIALS, 2004, 16 (23) :4627-4633
[5]  
BRYAN PS, 1992, Patent No. 5141671
[6]   Metal chelates as emitting materials for organic electroluminescence [J].
Chen, CH ;
Shi, JM .
COORDINATION CHEMISTRY REVIEWS, 1998, 171 :161-174
[7]  
COLLE M, 2005, PHYS ORGANIC SEMICON
[8]   THE CONSTRUCTION, TESTING AND USE OF A NEW KNUDSEN EFFUSION APPARATUS [J].
DASILVA, MAVR ;
MONTE, MJS .
THERMOCHIMICA ACTA, 1990, 171 :169-183
[9]   REFERENCE MATERIALS FOR FLUORESCENCE MEASUREMENT [J].
EATON, DF .
PURE AND APPLIED CHEMISTRY, 1988, 60 (07) :1107-1114
[10]   Organic light-emitting device with a mixed ligand 8-quinolinolato aluminium chelate as emitting and electron transporting material [J].
Giro, G ;
Cocchi, M ;
Di Marco, P ;
Fattori, V ;
Dembech, P ;
Rizzoli, S .
SYNTHETIC METALS, 2001, 123 (03) :529-533