公开(公告)号：US11581489B2

公开(公告)日：2023-02-14

申请号：US16945060

申请日：2020-07-31

Applicant: SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Xiaomeng Li ,  Jieshun Cui ,  Xianglin Wang ,  Zhaoyu Zhang

IPC: H01L51/00 ,  C07C213/04 ,  C07C217/80 ,  C07C227/26 ,  C07C229/52 ,  C09K11/06 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56

Abstract: A white light emitting material having a chemical structural formula represented by formula (I), a preparation method thereof and application thereof. The preparation method comprises subjecting tris(4-iodophenyl)amine and 4-methoxyphenylacetylene or tris(4-iodophenyl)amine and methyl 4-ethynylbenzoate to a coupling reaction under protection of a protective gas and catalysis of a Pd/Cu mixed catalyst, to obtain the white light emitting material. A novel temperature-sensitive light emitting material is synthesized through a one-step method. The material is applied to the field of diode luminescence based on the temperature-sensitive characteristic. White light luminescence can be finally realized only by reasonably controlling the temperature and duration time during heating a substrate. Compared with the existing art, the method greatly saves raw material costs and manufacturing process costs, and provides a novel idea and strategy for use of a white organic light emitting diode.

公开(公告)号：US20210036234A1

公开(公告)日：2021-02-04

申请号：US16945060

申请日：2020-07-31

Applicant: SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Xiaomeng Li ,  Jieshun Cui ,  Xianglin Wang ,  Zhaoyu Zhang

IPC: H01L51/00 ,  C07C217/80 ,  C07C213/04 ,  C09K11/06 ,  C07C229/52 ,  C07C227/26

Abstract: A white light emitting material having a chemical structural formula represented by formula (I), a preparation method thereof and application thereof. The preparation method comprises subjecting tris(4-iodophenyl)amine and 4-methoxyphenylacetylene or tris(4-iodophenyl)amine and methyl 4-ethynylbenzoate to a coupling reaction under protection of a protective gas and catalysis of a Pd/Cu mixed catalyst, to obtain the white light emitting material. A novel temperature-sensitive light emitting material is synthesized through a one-step method. The material is applied to the field of diode luminescence based on the temperature-sensitive characteristic. White light luminescence can be finally realized only by reasonably controlling the temperature and duration time during heating a substrate. Compared with the existing art, the method greatly saves raw material costs and manufacturing process costs, and provides a novel idea and strategy for use of a white organic light emitting diode.