公开(公告)号：US20220384740A1

公开(公告)日：2022-12-01

申请号：US17624472

申请日：2019-07-04

Applicant: SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Keith Man Chung Wong

IPC: H01L51/00 ,  C07F15/00 ,  C09K11/06

Abstract: A series of highly luminescent cyclometalated rhodium(III) complexes, with photoluminescence quantum yields up to 0.65 in thin films, have been designed and prepared. The strong luminescence property is realized by the judicious choice of a strong σ-donor cyclometalating ligand with lower-lying intraligand state and the ability to raise the d-d excited state. This is the first report to demonstrate the capability of rhodium(III) complexes as high efficient light-emitting materials for organic light-emitting devices. Compelling external quantum efficiencies of up to 12.2% and operational half-lifetime of over 3,000 hours have been achieved.

公开(公告)号：US11214586B2

公开(公告)日：2022-01-04

申请号：US16767786

申请日：2018-08-16

Applicant: SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES

Inventor： Keith Man Chung Wong ,  Chuangjun Liu ,  Ping Gong ,  Lihua Zhou ,  Lintao Cai

IPC: C07F15/00 ,  C07F13/00 ,  A61P35/00

Abstract: Through the use of a rhodamine appended chelate, a versatile strategy has been demonstrated to generate mitochondria-targeting photosensitizers via the incorporation of variety of luminescent transition metal systems. The generation of triplet excited state of rhodamine moiety endows the complexes with mitochondria-targeting photosensitizing ability to form singlet oxygen (1O2) for use as photodynamic therapy (PDT) agent. The combination of rhodamine organic dye and luminescent transition metal centers in such hybrid systems exhibits the synergistic merits, including low dark cytotoxicity, selective tumor cell uptake, high molar absorptivity for low-energy excitation in the visible region, and high photostability.