Title:
CRYSTAL SEED AND METHOD FOR MANUFACTURING PEROVSKITE SOLAR CELL THEREBY
Document Type and Number:
WIPO Patent Application WO/2021/027373
Kind Code:
A1
Abstract:
The present invention relates to a crystal seed, which is a compound. The chemical general formula thereof is: E xF yG zPb(I aBr bCl c) 3. In the formula, E, F, and G respectively represent monovalent cations of any one of cesium, rubidium, amine, amidine or alkali, 0≤x≤1.1, 0≤y≤1.1, 0≤z≤1.1, 0.8≤x+y+z≤1.1, 0.9≤a+b+c≤1.1, Pb represents lead ion, I represents iodide ion, Br represents bromide ion, and Cl represents chloride ion. Also disclosed in the present invention is a method for manufacturing perovskite solar cell by the crystal seed. According to the present invention, perovskite crystal seeds are added to lead halide, and the perovskite crystal is controlled to grow in a specific direction, so that black alpha-phase perovskite crystal, rather than yellow-phase crystal, is formed in a crystallization process, the crystalline phase of perovskite is stabilized under various conditions, a long-term stable perovskite thin film layer is manufactured, and the efficiency and stability of solar cells are improved.
Inventors:
GU NANNAN (CN)
SHENG RUI (CN)
YAN BUYI (CN)
YAO JIZHONG (CN)
SHENG RUI (CN)
YAN BUYI (CN)
YAO JIZHONG (CN)
Application Number:
PCT/CN2020/093815
Publication Date:
February 18, 2021
Filing Date:
June 01, 2020
Export Citation:
Assignee:
HANGZHOU MICROQUANTA SEMICONDUCTOR CO LTD (CN)
International Classes:
H01L51/48
Foreign References:
| CN110120455A | 2019-08-13 | |||
| CN111313238A | 2020-06-19 | |||
| CN108950689A | 2018-12-07 | |||
| CN108321300A | 2018-07-24 | |||
| US6890816B2 | 2005-05-10 |
Other References:
ZHAO YICHENG, TAN HAIREN, YUAN HAIFENG, YANG ZHENYU, FAN JAMES Z., KIM JUNGHWAN, VOZNYY OLEKSANDR, GONG XIWEN, QUAN LI NA, TAN CHI: "Perovskite seeding growth of formamidinium-lead-iodide-based perovskites for efficient and stable solar cells", NATURE COMMUNICATIONS, vol. 9, no. 1, 1 December 2018 (2018-12-01), XP055780840, DOI: 10.1038/s41467-018-04029-7
ZHAO YICHENG, TAN HAIREN, YUAN HAIFENG, YANG ZHENYU, FAN JAMES Z., KIM JUNGHWAN, VOZNYY OLEKSANDR, GONG XIWEN, QUAN LI NA, TAN CHI: "Perovskite seeding growth of formamidinium-lead-iodide-based perovskites for efficient and stable solar cells", NATURE COMMUNICATIONS, vol. 9, no. 1, 1 December 2018 (2018-12-01), XP055780840, DOI: 10.1038/s41467-018-04029-7
ZHAO YICHENG, TAN HAIREN, YUAN HAIFENG, YANG ZHENYU, FAN JAMES Z., KIM JUNGHWAN, VOZNYY OLEKSANDR, GONG XIWEN, QUAN LI NA, TAN CHI: "Perovskite seeding growth of formamidinium-lead-iodide-based perovskites for efficient and stable solar cells", NATURE COMMUNICATIONS, vol. 9, no. 1, 1 December 2018 (2018-12-01), XP055780840, DOI: 10.1038/s41467-018-04029-7
Attorney, Agent or Firm:
HANGZHOU AOCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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