Title:
PEROVSKITE CLUSTER SOLUTION AND PREPARATION METHOD THEREFOR, AND OPTOELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/070866
Kind Code:
A1
Abstract:
The present application relates to the technical field of optoelectronics, and in particular to a perovskite cluster solution and a preparation method therefor, and an optoelectronic device. The preparation method for the perovskite cluster solution comprises the following steps: preparing a lanthanide rare earth metal salt hydrate, an organic carboxylic acid, an organic amine ligand, and a perovskite raw material into a precursor solution; and mixing the precursor solution with an anti-solvent, and performing purification to obtain the perovskite cluster solution. According to the preparation method for the perovskite cluster solution of the present application, by means of the synergistic effect of the lanthanide rare earth metal salt hydrate, the organic carboxylic acid, and the organic amine ligand, a surface defect of a perovskite cluster is effectively passivated, the aggregation growth rate of the perovskite cluster is regulated and controlled, the stability of the perovskite cluster in a solution environment is improved, and the perovskite cluster having a small size, strong stability and a high fluorescence quantum yield is obtained.
Inventors:
XUE DONGFENG (CN)
XU KE (CN)
WANG XIAOMING (CN)
XU KE (CN)
WANG XIAOMING (CN)
Application Number:
PCT/CN2021/137621
Publication Date:
May 04, 2023
Filing Date:
December 13, 2021
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
B82Y40/00; C09K11/85
Foreign References:
| CN110156071A | 2019-08-23 | |||
| CN113105894A | 2021-07-13 | |||
| CN113318725A | 2021-08-31 | |||
| CN112484851A | 2021-03-12 | |||
| US20170233645A1 | 2017-08-17 |
Attorney, Agent or Firm:
BEIJING ZHONG XUN TONG DA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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