Zhejiang University

Aac Microtech (Changzhou) Co, , Ltd.

Zhejiang Huaxian Photoelectricity Technology Co., Ltd.

Yuanbin She

Guijie Li

Shaohai Chen

Xiangdong Zhao

Xiaoyu Zhao

Jianbing Zheng

Haimin Shen

Kewei Xu

Lei Ning

Jianxin Dai

Qingshan Chu

Jieying Tong

Yunqi Lu

Disheng Huang

Chunji Gao

Chengyao Zhang

Yunfang Yang

Gang Shen

Chunsong Zhou

The present invention is in the field of organic electroluminescence, and specifically relates to a fused ring carbazole tetradentate metal platinum (II) complex and use thereof. In the present invention, a tetradentate metal platinum (II) complex phosphorescent material is obtained by introducing a five-membered heterocyclic system such as benzofuran or benzothiophene at the 5, 6-positions of carbazole. Increasing the ratio of the local state (LE) in the excited triplet state of the cyclic tetradentate platinum (II) complex leads to a lower shoulder peak, which improves the luminescence color purity of the materials, which in turn increases device lifetime. The materials provided by the present invention all have good chemical stability and thermal stability and are easy to fabricate an evaporation-type OLED device.

Fused ring carbazole tetradentate metal platinum (II) complex and use thereof

A confined porphyrin Co(II), which is prepared by the following method: Equimolar amounts of aromatic aldehyde and pyrrole are condensed under acidic conditions to synthesize phenyl porphyrin compounds; the phenyl porphyrin compounds are metallized in a chloroform-methanol solution to obtain porphyrin Cu(II), which is brominated and demetallized to obtain confined porphyrin; the confined porphyrin is stirred and refluxed in a methanol solution for 12.0-24.0 h to obtain confined porphyrin Co(II). Its application is as follows: The confined porphyrin Co(II) is dissolved in cycloalkanes; the reaction system is sealed, and heated to 100 to 130&#xb0; C. with stirring, to which oxygen is introduced to 0.2 to 3.0 MPa; the reaction is carried out for 3.0 to 24.0 h with stirring with the set temperature and oxygen pressure being maintained; and then the reaction solution is subjected to post-treatment to obtain the products.

Confined porphyrin Co(II) and preparation method and application thereof

The invention relates to the technical field of organic electroluminescent devices and discloses a polydentate binuclear ring metal complex and a device including the polydentate binuclear ring metal complex or its composition. The polydentate binuclear ring metal complex provided by the invention can not only provide the emission of most visible spectra, but also can be adjusted by changing the structure of ligand or fluorescent luminescence. In addition, the polydentate binuclear ring metal complexes provided by the invention have better stability and efficiency than the traditional emission complexes. The device provided by the invention comprises the polydentate binuclear ring metal complex or its composition, which include optical and electro-optic devices, optical absorption devices, organic light-emitting diode devices, photoemission devices, or devices that are compatible with optical absorption and emission. The polydentate binuclear ring metal complex or its composition has 100% internal quantum efficiency in these devices.

Polydentate binuclear ring metal complexes and devices containing same

Disclosed herein are multidentate dinuclear cyclometallated complexes. The complexes are suitable as emitting materials or host materials in OLED devices. 

Multidentate dinuclear cyclometallated complexes containing N^C^C^N&#x2014;N^C^C^N ligand

Disclosed herein are multidentate dinuclear cyclometallated complexes. The complexes are suitable as emitting materials or host materials in OLED devices, the materials having one of the following structures: 

Multidentate dinuclear cyclometallated complexes containing phenylpyridine and its analogues

Disclosed herein are multidentate dinuclear cyclometallated platinum complexes. The complexes are suitable as emitting materials or host materials in OLED devices, the materials having one of the following structures: 

Multidentate dinuclear cyclometallated platinum complexes containing N-(pyrimidin-2-yl)-carbazole and its analogues

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Hangzhou, China

Yuanbin She