An organic electroluminescence device includes: a pair of electrodes; and at least one organic layer including a light emitting layer, the light emitting layer being provided between the pair of electrodes, wherein at least one layer of the at least one organic layer contains a compound represented by formula (1):
wherein each of Z
11
and Z
12
independently represents an aromatic heterocyclic ring or an aromatic hydrocarbon ring; R
11
represents a hydrogen atom or a substituent, provided that a plurality of R
11
s are the same or different; m represents an integer of 1 or more; and L
1
represents a single bond or an m-valent linking group and is linked to any one of C atoms in R
11
, Z
11
and Z
12
, provided that when m is 1, L
1
does not exist.
[EN] MATERIAL SELECTING METHOD UPON PURIFYING IRIDIUM COMPLEX BY SUBLIMATION<br/>[FR] PROCÉDÉ DE SÉLECTION DE MATIÈRE LORS DE LA PURIFICATION D'UN COMPLEXE D'IRIDIUM PAR SUBLIMATION
申请人:FUJIFILM CORP
公开号:WO2011025064A1
公开(公告)日:2011-03-03
Provided is a material selecting method used upon purifying an iridium complex by sublimation which includes: selecting an iridium complex having a specific structure and having a rate of weight loss of 45% or greater when heated to 500°C at a heating rate of 2°C/min under the degree of vacuum of from 1 x 10-3 Pa to 1 x 10-1 Pa; and carrying out sublimation purification.
提供的是一种用于通过升华纯化铱配合物的材料选择方法,包括:选择具有特定结构并在加热速率为2°C/min时在500°C加热时重量损失率为45%或更高的铱配合物,在1 x 10-3 Pa至1 x 10-1 Pa的真空度下进行升华纯化。
COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
申请人:Samsung Display Co., Ltd.
公开号:US20210053920A1
公开(公告)日:2021-02-25
An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the organic layer includes the compound of Formula 1:
When the compound of Formula 1 is used in an organic light-emitting device, the organic light-emitting device may have high-efficiency characteristics as compared to a case where a compound of the related art is used, resulting particularly in excellent lifespan improvement effects, and accordingly, significantly improved lifespan.
Subcomponent Self-Assembly of Covalent Metallacycles Templated by Catalytically Active Seven-Coordinate Transition Metal Centers
作者:Zhi-Wei Li、Xin Wang、Lian-Qiang Wei、Ivana Ivanović-Burmazović、Gao-Feng Liu
DOI:10.1021/jacs.0c01035
日期:2020.4.22
The coordination geometries of transition metals play vital roles in the self-assembly process of supramolecular coordination complexes. Herein, seven-coordinate 3d metal ions, as catalytically active sites, were applied as templates for designed organization of selected subcomponents that resulted in self-assembly of a new category of covalent metallacycles. The single crystal structures proved that
过渡金属的配位几何结构在超分子配位配合物的自组装过程中起着至关重要的作用。在此,作为催化活性位点的七配位 3d 金属离子被用作模板,用于设计组织选定的子组分,从而导致新型共价金属环的自组装。单晶结构证明共价金属环的尺寸、构型和官能化可以分别通过选择刚性二酰肼、过渡金属离子和预官能化亚组分来调节。此外,用羧基修饰的金属环可作为前体通过分级组装制备气凝胶,该气凝胶仍然表现出对 CO2 环加成成环状碳酸酯的高催化活性。
ORGANIC ELECTROLUMINESCENCE DEVICE AND FUSED POLYCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Samsung Display Co., Ltd.
公开号:US20210184123A1
公开(公告)日:2021-06-17
An organic electroluminescence device of an embodiment includes a first electrode, an oppositely disposed second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one of the plurality of organic layers includes a fused polycyclic compound represented by Formula 1 and has an improved emission efficiency and long device life span: