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Title:
PEROVSKITE SOLAR CELL AND PREPARATION METHOD THEREFOR AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/123390
Kind Code:
A1
Abstract:
The present application provides a perovskite solar cell and a preparation method therefor and an electric device. The perovskite solar cell sequentially comprises a back electrode, a hole transport layer, an interface passivation layer, a perovskite layer, an interface passivation layer, an electron transport layer, and conductive glass. The HOMO energy level of an interface between the perovskite layer and the interface passivation layer is 0.01-0.4 eV, and the energy band gap between the HOMO energy level and the LUMO energy level is 0.01-0.4 eV. The interface passivation layer contains organic amine salts of biphenyl compounds and/or organic amine salts of benzene compounds. According to the perovskite solar cell, the organic amine salts of the biphenyl compounds and the benzene compounds are adopted to passivate the perovskite layer in the perovskite solar cell, the VBM of the perovskite layer can be improved, hole extraction is facilitated, the carrier transport efficiency is improved, and therefore the efficiency and stability of the perovskite solar cell can be greatly improved.

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Inventors:
LIANG WEIFENG (CN)
SUN JUANJUAN (CN)
TU BAO (CN)
CHEN CHANGSONG (CN)
GUO YONGSHENG (CN)
CHEN GUODONG (CN)
Application Number:
PCT/CN2021/143771
Publication Date:
July 06, 2023
Filing Date:
December 31, 2021
Export Citation:
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Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01L51/42
Foreign References:
CN113809246A2021-12-17
CN113363390A2021-09-07
CN111540808A2020-08-14
CN105900255A2016-08-24
CN112864325A2021-05-28
Other References:
WANG, FENG ET AL.: "Phenylalkylamine Passivation of Organolead Halide Perovskites Enabling High-Efficiency and Air-Stable Photovoltaic Cells", ADVANCED MATERIALS, vol. 28, 28 September 2016 (2016-09-28), XP055490560, ISSN: 0935-9648, DOI: 10.1002/adma.201603062
See also references of EP 4231803A4
Attorney, Agent or Firm:
SHANGCHENG & PARTNERS (CN)
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