KARSCH, H. H.;APPELT, A., Z. NATURFORSCH., 1983, 38, N 11, 1399-1405
作者:KARSCH, H. H.、APPELT, A.
DOI:——
日期:——
MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTROLUMINESCENCE DEVICE
申请人:TAKADA Saki
公开号:US20110050092A1
公开(公告)日:2011-03-03
Provided is a material for organic electroluminescence device containing (a) a phosphorescent metal complex containing a monoanionic bidentate ligand and a metal having an atomic weight of 40 or greater, wherein the monoanionic bidentate ligand is represented by the following formula (A):
wherein, each of E
1a
, E
1d
, E
1e
, E
1f
, E
1k
, E
1l
, E
1p
, and E
1q
independently represents a carbon atom or a hetero atom, each of Z
1
, Z
2
, and Z
3
independently represents an aromatic ring or aromatic heterocycle, the aromatic ring or aromatic heterocycle may have a substituent, and a skeleton represented by the formula (A) has, in total, a 18π electron structure, and the bidentate ligand represented by the formula (A) may be coupled to another ligand to form a tridentate or higher-dentate ligand; and (b) a structural isomer represented by the same chemical formula as that of the phosphorescent metal complex (a) but different sterically in a coordination method of the ligand, wherein the structural isomer (b) is contained in an amount of 0.05 mass % or greater but not greater than 5 mass % relative to the phosphorescent metal complex (a).
CHARGE TRANSPORTING MATERIAL AND ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Kitamura Tetsu
公开号:US20120256173A1
公开(公告)日:2012-10-11
In order to provide an organic electroluminescence device with high luminous efficiency and good durability, the present invention provides a charge transporting material including a compound represented by Formula (Cz-1) wherein the content of a particular halogen-containing impurity in the charge transporting material is from 0.000% to 0.10% when the content is calculated as a proportion of the absorption intensity area of the impurity with respect to the total absorption intensity area of the charge transporting material, as measured by high-performance liquid chromatography at a measurement wavelength of 254 nm, and an organic electroluminescence device wherein the charge transporting material is included in an organic layer:
wherein in Formula (Cz-1), each of R
1
to R
5
independently represents a particular atom or group; and each of n1 to n5 independently represents a particular integer.