Novel Bipolar Bathophenanthroline Containing Hosts for Highly Efficient Phosphorescent OLEDs
摘要:
The electronic structures of eight bathophenanthroline derivatives were elucidated by DFT calculations, and four representatives of which CZBP, m-CZBP, m-TPAP, and BPABP were synthesized and employed as the hosts to afford highly efficient phosphorescent OLEDs. The calculated molecular orbital energies agree well with the experimental results, which further demonstrates that the localization of HOMO and LUMO at the respective hole- and electron-transporting moieties is desirable in bipolar molecular designs.
Metal complex organic electroluminescent material and organic electroluminescent device
申请人:SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
公开号:US11424418B2
公开(公告)日:2022-08-23
The present invention relates to an organic electroluminescent material, an organic electroluminescent device, and a method for preparing the organic electroluminescent device. Due to comprising an organic compound A with 3.0 eV>ET≥2.0 eV and a compound B of M(LA)x(LB)y(LC)z, the organic electroluminescent material of the present invention has the advantages of an increased luminescence lifetime and/or a reduced operating voltage on the basis of maintaining other electronic properties at a certain level.
本发明涉及一种有机电致发光材料、一种有机电致发光器件和一种制备有机电致发光器件的方法。由于包含 3.0 eV>ET≥2.0 eV 的有机化合物 A 和 M(LA)x(LB)y(LC)z 的化合物 B,本发明的有机电致发光材料具有在保持其他电子特性在一定水平的基础上提高发光寿命和/或降低工作电压的优点。
ORGANIC ELECTROLUMINESCENT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE
申请人:SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIAL CO., LTD.
公开号:US20200381633A1
公开(公告)日:2020-12-03
The present invention relates to an organic electroluminescent material, an organic electroluminescent device, and a method for preparing the organic electroluminescent device. Due to comprising an organic compound A with 3.0 eV>ET≥2.0 eV and a compound B of M(LA)x(LB)y(LC)z, the organic electroluminescent material of the present invention has the advantages of an increased luminescence lifetime and/or a reduced operating voltage on the basis of maintaining other electronic properties at a certain level.
US7517596B2
申请人:——
公开号:US7517596B2
公开(公告)日:2009-04-14
Novel Bipolar Bathophenanthroline Containing Hosts for Highly Efficient Phosphorescent OLEDs
The electronic structures of eight bathophenanthroline derivatives were elucidated by DFT calculations, and four representatives of which CZBP, m-CZBP, m-TPAP, and BPABP were synthesized and employed as the hosts to afford highly efficient phosphorescent OLEDs. The calculated molecular orbital energies agree well with the experimental results, which further demonstrates that the localization of HOMO and LUMO at the respective hole- and electron-transporting moieties is desirable in bipolar molecular designs.