公开(公告)号：US20240239825A1

公开(公告)日：2024-07-18

申请号：US18555428

申请日：2022-04-22

申请人： ZHEJIANG UNIVERSITY OF TECHNOLOGY ,  ZHEJIANG HUAXIAN PHOTOELECTRICITY TECHNOLOGY CO., LTD

发明人： Guijie LI ,  Yuanbin SHE ,  Jianbin ZHENG ,  Kewei XU

IPC分类号： C07F15/00 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/18 ,  H10K85/30

CPC分类号： C07F15/0086 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/181 ,  H10K85/346 ,  C09K2211/185

摘要： The present invention provides a high radiation rate platinum complex based on 1,8-substituted carbazole and an application thereof. The luminescent material of the present invention can efficiently control the excited state properties of material molecules by introducing substituents at 1-, 8-position of carbazole, which increases components of metal-to-ligand charge transfer state (MLCT), and improves the intersystem crossing rate of molecules; at the same time, the introduction of substituents at the 1-, 8-position of carbazole can increase the dihedral angle thereof with a pyridine ring, which can improve the rigidity of molecules, effectively reduce the energy consumed by the vibration and rotation of the carbazole ring in the molecules, and reduce non-radiative attenuation. The described factors can jointly increase the radiation rate of material molecules and shorten the lifetime of the excited state.

公开(公告)号：US20240343972A1

公开(公告)日：2024-10-17

申请号：US18744544

申请日：2024-06-14

申请人： ZHEJIANG UNIVERSITY OF TECHNOLOGY ,  ZHEJIANG HUAXIAN PHOTOELECTRICITY TECHNOLOGY CO., LTD

发明人： Guijie LI ,  Yuanbin SHE ,  Feng ZHAN ,  Xiaoyu ZHAO

IPC分类号： C09K11/06 ,  H10K50/11 ,  H10K85/30

CPC分类号： C09K11/06 ,  H10K50/11 ,  H10K85/346 ,  C09K2211/185

摘要： The present invention provides a metal platinum complex, an organic optoelectronic device, and a display or lighting apparatus. A new 6/5/7 metal fused-ring structure is developed by using 8-phenylquinoline structure and a derivative thereof, and benzo five-membered heterocycles and a phenoxy oxygen tetradentate ligand, to obtain a new class of tetradentate cyclometalated platinum complex phosphor material. A chemical formula of the phosphor material is shown as the general formula (1):

公开(公告)号：US20240336644A1

公开(公告)日：2024-10-10

申请号：US18584263

申请日：2024-02-22

申请人： ZHEJIANG UNIVERSITY OF TECHNLOLOGY ,  ZHEJIANG HUAXIAN PHOTOELECTRICITY TECHNOLOGY CO., LTD

发明人： Guijie LI ,  Kewei XU ,  Jianbing ZHENG ,  Yuanbin SHE ,  Disheng HUANG

IPC分类号： C07F15/00 ,  C07B59/00 ,  H10K85/30 ,  H10K85/40 ,  H10K85/60

CPC分类号： C07F15/0086 ,  C07B59/004 ,  H10K85/346 ,  H10K85/40 ,  H10K85/615 ,  H10K85/6574 ,  C07B2200/05 ,  C07B2200/09

摘要： The disclosure relates to the technical field of preparation of circularly polarized luminescence materials, in particular to a central chirality induced helical chiral tetradentate cyclometalated platinum (II) complex, an electronic device and application thereof. The central chirality induced helical chiral tetradentate cyclometalated platinum (II) complex provided in the disclosure has a general structure as shown in formula (I) or (I′) in which (I) and (I′) are enantiomers to each other:




Helical chiral metal complex molecules can autonomously induce a whole tetradentate ligand to coordinate with metal ions in a less sterically hindered manner by means of a central chiral fragment La in the tetradentate ligand, to form an optically pure helical chiral metal complex-based circularly polarized luminescence material, without need for chiral resolution. Moreover, the material has high chemical stability and thermal stability, and has important applications in circularly polarized luminescence elements.

公开(公告)号：US20240164204A1

公开(公告)日：2024-05-16

申请号：US18545627

申请日：2023-12-19

申请人： Zhejiang University of Technology ,  Zhejiang Huaxian Photoelectricity Technology Co., Ltd

发明人： Guijie Li ,  Disheng Huang ,  Yuanbin She ,  Xiaoyu Zhao

IPC分类号： H10K85/30 ,  C07F15/00 ,  C09K11/06

CPC分类号： H10K85/346 ,  C07F15/0086 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/185 ,  H10K50/11

摘要： The disclosure relates to the technical field of organic luminescent materials, and provides a metal platinum (II) and palladium (II) complex luminescent material containing quinoline structural units, which is also shown as follows. Compared with a bidentate ligand platinum complexe, the tetradentate ligand-based cyclometalated metal platinum (II) and palladium (II) complex provided by the disclosure has strong molecular rigidity, can effectively suppress non-radiative transition due to molecular vibration, greatly improve the quantum efficiency, and have broad application prospects in many fields such as OLED display and lighting.

公开(公告)号：US20240059962A1

公开(公告)日：2024-02-22

申请号：US18484200

申请日：2023-10-10

申请人： ZHEJIANG UNIVERSITY OF TECHNOLOGY ,  ZHEJIANG HUAXIAN PHOTOELECTRICITY TECHNOLOGY CO., LTD.

发明人： Guijie LI ,  Yuanbin SHE ,  Hua GUO ,  Kewei XU ,  Shun LIU ,  Feng ZHAN ,  Jianfeng WANG

IPC分类号： C09K11/06

CPC分类号： C09K11/06 ,  C09K2211/185 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1022 ,  C07B2200/07

摘要： Disclosed are a central chirality induced spiro chiral tetradentate cyclometalated platinum (II) and palladium (II) complex-based circularly polarized luminescence material and an application thereof. Spiro chiral metal complex molecules can be autonomously induced by a whole tetradentate ligand to coordinate with metal ions in a less sterically hindered manner by means of a central chiral fragment La in the tetradentate ligand, to form an optically pure spiro chiral metal complex-based circularly polarized luminescence material, without need for chiral resolution. Moreover, the material has high chemical stability and thermal stability, and has important applications in circularly polarized luminescence devices.