Title:
PRECURSOR SOLUTION, PEROVSKITE SOLAR CELL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/183582
Kind Code:
A1
Abstract:
Provided are a precursor solution, a perovskite solar cell and a preparation method therefor. The solute of the precursor solution comprises a metal halide, and the solvent of the precursor solution is an organic solvent. Nano-bubbles are doped in the precursor solution, and the diameter of the-nano bubbles is not more than 1000 nm. The Zeta potential of the precursor solution does not exceed -20 mV. The preparation method for the precursor solution comprises: (1) preparing an organic solvent containing nano-bubbles; and (2) dissolving a solute in the organic solvent containing nano-bubbles. The precursor solution of the present invention has a very low Zeta potential, and the nano-bubbles can be stably present in the organic solvent for up to 1 month. Compared with a traditional method for preparing a precursor solution for a perovskite cell, the method for preparing a precursor solution of the present invention can effectively improve the stability, repeatability and solubility of a metal halide in an organic solvent.
Inventors:
GU SHUAI (CN)
XING LEI (CN)
YU JIANGUO (CN)
XING LEI (CN)
YU JIANGUO (CN)
Application Number:
PCT/CN2021/090599
Publication Date:
September 09, 2022
Filing Date:
April 28, 2021
Export Citation:
Assignee:
UNIV EAST CHINA SCIENCE & TECH (CN)
International Classes:
H01L51/42; C09K11/02
Foreign References:
| CN110902715A | 2020-03-24 |
Attorney, Agent or Firm:
NANJING SUCHUANG INTELLECTUAL PROPERTY LAW FIRM et al. (CN)
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