Title:
HIGH-EFFICIENCY DIVALENT PLATINUM COMPLEX PHOSPHORESCENT OLED MATERIAL AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/082896
Kind Code:
A1
Abstract:
The present invention relates to a high-efficiency divalent platinum complex phosphorescent OLED material and the use thereof, and a platinum complex containing an ONCN tetradentate ligand and the use thereof in an organic light-emitting diode. The platinum complex is a compound with a structure of chemical formula (I); and when used in an organic light-emitting diode, the compound has a relatively low driving voltage and relatively high light-emitting efficiency and can significantly prolong the service life of a device, and therefore the compound has a potential of being used in the field of organic electroluminescent devices. The present invention further provides an organic electroluminescent device, which comprises a cathode, an anode, and an organic layer, wherein the organic layer is one or more of a hole injection layer, a hole transport layer, a light-emitting layer, a hole blocking layer, an electron transport layer and an electron injection layer, and at least one layer of the organic layer contains the compound of the structural formula (I).
Inventors:
WU XINWEI (CN)
LI HUIYANG (CN)
DAI LEI (CN)
CAI LIFEI (CN)
LI HUIYANG (CN)
DAI LEI (CN)
CAI LIFEI (CN)
Application Number:
PCT/CN2022/123700
Publication Date:
May 19, 2023
Filing Date:
October 04, 2022
Export Citation:
Assignee:
GUANGDONG AGLAIA OPTOELECTRONIC MAT CO LTD (CN)
International Classes:
C09K11/06; C07F15/00
Foreign References:
| CN113717229A | 2021-11-30 | |||
| CN114573639A | 2022-06-03 | |||
| CN110872325A | 2020-03-10 | |||
| CN103097395A | 2013-05-08 | |||
| CN106795428A | 2017-05-31 | |||
| US20180062088A1 | 2018-03-01 |
Other References:
MAO, MAO ET AL.: "High-performance organic light-emitting diodes with low-efficiency roll-off using bulky tetradentate [Pt(ONCN)] emitters", J. MATER. CHEM. C, vol. 7, 11 April 2019 (2019-04-11), XP055692518, DOI: 10.1039/C9TC00682F
CHENG, GANG ET AL.: "Structurally robust phosphorescent [Pt(ONCN)] emitters for high performance organic light emitting devices with power efficiency up to 126 lm W-1 and external quantum efficiency over 20%", CHEM. SCI., vol. 5, 26 August 2014 (2014-08-26), XP055512462, DOI: 10.1039/C4SC01105H
CHENG, GANG ET AL.: "Structurally robust phosphorescent [Pt(ONCN)] emitters for high performance organic light emitting devices with power efficiency up to 126 lm W-1 and external quantum efficiency over 20%", CHEM. SCI., vol. 5, 26 August 2014 (2014-08-26), XP055512462, DOI: 10.1039/C4SC01105H
Attorney, Agent or Firm:
BEIJING ZHAOJUN UNION INTELLECTUAL PROPERTY LAW FIRM (CN)
Download PDF:
Previous Patent: ORGANIC COMPOUND AND USE THEREOF
Next Patent: METAL IRIDIUM COMPLEX AND APPLICATION THEREOF
Next Patent: METAL IRIDIUM COMPLEX AND APPLICATION THEREOF