Title:
DOPED ELECTRONIC DEVICE BASED ON GREEN THERMALLY ACTIVATED DELAYED FLUORESCENCE MATERIAL, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/088113
Kind Code:
A1
Abstract:
A doped electronic device based on a green thermally activated delayed fluorescence material, and a manufacturing method therefor. The doped electronic device based on the green thermally activated delayed fluorescence material consists of an anode, a hole injection layer, a hole transport layer, an electron/exciton blocking layer, a light emitting layer, an electron transport layer, an electron injection layer, and a cathode, wherein the light emitting layer is prepared by the green thermally activated delayed fluorescence material being doped with a host material, and the green thermally activated delayed fluorescence material is 3,5-bis(9H-carbazol-9-yl)-2,4,6-tri(3,6-di-tert-butyl 9H-carbazol-9-yl)cyanophenyl. An OLED manufactured from the high-concentration doped light emitting layer of the thermally activated delayed fluorescence material achieves the goals that the external quantum efficiency (EQE) exceeds 20% and the efficiency roll-off is low.
Inventors:
TANG JIANXIN (CN)
XIE FENGMING (CN)
LI YANQING (CN)
ZHOU JINGXIONG (CN)
ZENG XINYI (CN)
XIE FENGMING (CN)
LI YANQING (CN)
ZHOU JINGXIONG (CN)
ZENG XINYI (CN)
Application Number:
PCT/CN2020/125594
Publication Date:
May 05, 2022
Filing Date:
October 30, 2020
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
H01L51/50; C07D209/86; C09K11/06; H01L51/54
Domestic Patent References:
| WO2020075971A1 | 2020-04-16 |
Foreign References:
| CN106316924A | 2017-01-11 | |||
| CN106328828A | 2017-01-11 | |||
| CN108011040A | 2018-05-08 | |||
| CN109994628A | 2019-07-09 | |||
| CN108695440A | 2018-10-23 | |||
| CN109411633A | 2019-03-01 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD (CN)
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