公开(公告)号：US20240276867A1

公开(公告)日：2024-08-15

申请号：US18563314

申请日：2022-05-31

Applicant: Versitech Limited ,  Hong Kong Quantum AI Lab Limited

Inventor： Chi-Ming Che ,  Kar-Wai Lo ,  Gang Cheng

IPC: H10K85/30 ,  C07F15/00 ,  C09K11/06 ,  H10K50/12 ,  H10K101/10

CPC classification number: H10K85/346 ,  C07F15/0086 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1014 ,  C09K2211/1044 ,  C09K2211/1059 ,  C09K2211/185 ,  H10K50/12 ,  H10K2101/10

Abstract: Described herein are dinuclear platinum(II) emitter complexes and their methods of making and using thereof. The design of the dinuclear platinum(II) emitters results in short radiative lifetimes and high quantum yields. The dinuclear platinum(II) emitter complexes can be used to fabricate blue emitting OLEDs.

公开(公告)号：US20240124494A1

公开(公告)日：2024-04-18

申请号：US18466622

申请日：2023-09-13

Applicant: Versitech Limited ,  Hong Kong Quantum AI Lab Limited

Inventor： Chi-Ming Che ,  Siyuan Cai ,  Tsz-Lung Lam ,  Gang Cheng

IPC: C07F1/12 ,  C09K11/06 ,  H10K85/30 ,  H10K85/60

CPC classification number: C07F1/12 ,  C09K11/06 ,  H10K85/371 ,  H10K85/631 ,  H10K85/654 ,  H10K85/658

Abstract: Described are multi-resonance-thermally-activated delay-fluorescence compounds containing (i) a polycyclic aromatic/heteroaromatic ligand in which a plurality aromatic/heteroaromatic rings are linked by boron and nitrogen atoms and (ii) an N-heterocyclic carbene ligand, with both ligands coordinated to a metal atom/ion that has a high spin-orbit coupling. The use of the high spin-orbit coupling of metals and/or metal ions facilitates the intersystem crossing and/or reversed intersystem crossing processes of MR-TADF emitters, thereby largely accelerating the rate of TADF and substantially shortening the lifetime of deleterious triplet excitons. The MR-TADF emitters can be used to fabricate blue to green emitting OLEDs.

公开(公告)号：US20240324441A1

公开(公告)日：2024-09-26

申请号：US18563295

申请日：2022-05-31

Applicant: Versitech Limited ,  Hong Kong Quantum AI Lab Limited

Inventor： Chi-Ming Che ,  Minying Xue ,  Tsz-Lung Lam

IPC: H10K85/30 ,  C07F15/00 ,  H10K50/12

CPC classification number: H10K85/346 ,  C07F15/0086 ,  H10K50/12 ,  H10K85/361

Abstract: Platinum (II) complexes (“Pt(II) complexes”) that can emit in the red and/or deep red regions and methods of making and using thereof are described. These Pt(II) complexes can have dinuclearity with close Pt—Pt contact and close interplanar distance, allowing for high emission quantum yield, such as >50%, short emission lifetime, such as 9000 h for a red OLED.

公开(公告)号：US20240247187A1

公开(公告)日：2024-07-25

申请号：US18563286

申请日：2022-05-31

Applicant: Versitech Limited ,  Hong Kong Quantum AI Lab Limited

Inventor： Chi-Ming Che ,  Man-Ki Sit ,  Tsz-Lung Lam ,  Gang Cheng

IPC: C09K11/06 ,  H10K50/11 ,  H10K85/30 ,  H10K101/10 ,  H10K101/20 ,  H10K102/00

CPC classification number: C09K11/06 ,  H10K50/11 ,  H10K85/341 ,  C09K2211/1029 ,  C09K2211/185 ,  H10K2101/10 ,  H10K2101/20 ,  H10K2102/351

Abstract: Described herein are compounds containing palladium(II), as the central metal atom, and tetradentate [N{circumflex over ( )}C{circumflex over ( )}C{circumflex over ( )}N] ligands. The compounds are charge neutral, and feature a donor-acceptor structure where a pendant substituted amino group (such as unsubstituted diphenylamine or substituted diphenylamine) and a heteroaryl group (such as pyridine group) serve as donor and acceptor, respectively. This donor-acceptor structure introduces a set of low-energy singlet and triplet charge-transfer excited states with small energy separation allowing for efficient thermally activated delayed fluorescence to take place.

公开(公告)号：US20230165135A1

公开(公告)日：2023-05-25

申请号：US18057632

申请日：2022-11-21

Applicant: Versitech Limited ,  Hong Kong Quantum AI Lab Limited

Inventor： Rui Tang ,  Chi-Ming Che ,  Gang Cheng ,  Tsz-Lung Lam

IPC: H10K85/30 ,  C07F1/08 ,  C07F1/00 ,  C09K11/06

CPC classification number: H01L51/0091 ,  C07F1/08 ,  C07F1/00 ,  C09K11/06 ,  C09K2211/188 ,  C09K2211/1074 ,  C09K2211/1029 ,  C09K2211/1044 ,  H01L51/5012

Abstract: Described herein are two-coordinated d10 metal carbene complexes containing (i) Cu(I), Ag(I), or Au(I), (ii) a pyrazine-fused NHC ligand or a pyridine-fused NHC ligand, and (iii) a carbazole ligand, a pyrido[2,3-b]indole ligand, or a pyrido[3,4-b]indole ligand. The radiative properties of the compounds can be controlled by thermally activated delayed fluorescence. The emission colors of the complexes can be tuned by using carbazoles with varying donor strength. Also described are methods of using the complexes.

公开(公告)号：US20240083931A1

公开(公告)日：2024-03-14

申请号：US18361411

申请日：2023-07-28

Applicant: The University of Hong Kong ,  Hong Kong Quantum AI Lab Limited

Inventor： Kar-Wai Lo ,  Chi-Ming Che ,  Gang Cheng

IPC: C07F15/00 ,  H10K50/16 ,  H10K85/30

CPC classification number: C07F15/0086 ,  H10K50/166 ,  H10K85/346

Abstract: Described herein are dinuclear platinum(II) complexes and their methods of making and using thereof. The design of the dinuclear platinum(II) complexes results in red to deep-red photoluminescence with high quantum yields at room temperature, short emission lifetimes, and fast radiative decay rates. The dinuclear platinum(II) complexes can be used to fabricate red and/or NIR emitting OLEDs.

公开(公告)号：US20240049591A1

公开(公告)日：2024-02-08

申请号：US18353717

申请日：2023-07-17

Applicant: The University of Hong Kong ,  Hong Kong Quantum AI Lab Limited

Inventor： Kar-Wai Lo ,  Chi-Ming Che ,  Gang Cheng

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

CPC classification number: H10K85/346 ,  C07F15/0086 ,  C09K11/06 ,  H10K50/121

Abstract: Described herein are dinuclear platinum(II) emitter complexes and their methods of making and using thereof. The design of the dinuclear platinum(II) emitters results in short radiative lifetimes and high quantum yields. The dinuclear platinum(II) emitter complexes can be used to fabricate blue emitting OLEDs.

公开(公告)号：US12098126B2

公开(公告)日：2024-09-24

申请号：US17821314

申请日：2022-08-22

Applicant: Versitech Limited ,  Laboratory for Synthetic Chemistry and Chemical Biology Limited

Inventor： Chi-Ming Che ,  Tingjie You

IPC: C07D207/06 ,  B01J31/22 ,  C07D207/12 ,  C07D207/14 ,  C07D217/26 ,  C07D221/22 ,  C07D223/18 ,  C07D233/32 ,  C07D401/04 ,  C07D403/10 ,  C07D405/04 ,  C07D417/04 ,  C07D471/04 ,  C07D487/04 ,  C07D487/22

CPC classification number: C07D207/06 ,  B01J31/2295 ,  C07D207/12 ,  C07D207/14 ,  C07D217/26 ,  C07D221/22 ,  C07D223/18 ,  C07D233/32 ,  C07D401/04 ,  C07D403/10 ,  C07D405/04 ,  C07D417/04 ,  C07D471/04 ,  C07D487/04 ,  C07D487/22

Abstract: Described herein is an iron(II)-phthalocyanine catalyzed C—H bond amination of alkyl azides. The catalyst is effective to produce intramolecular amination of saturated C—H bonds in moderate to excellent yields and the methods are tolerant of a wide scope of substrates. The methods described are useful for the synthesis of natural products derivatives and for the late-stage functionalization of pharmaceuticals.