Perovskite solar cell and preparation method thereof
By doping metal ions into fullerene materials, the performance degradation caused by fullerene coalescence in perovskite solar cells is solved, and a more efficient, stable and economical perovskite solar cell is achieved.
CN119730555APending Publication Date: 2025-03-28ZHEJIANG AIKO SOLAR ENERGY TECH CO LTD +4
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Patent Information
- Application Number
- CN202411272800.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
In existing perovskite solar cells, the fullerene material has coalesced during repeated heating and forms a deep state due to the presence of oxygen or impurities in the initial source powder, resulting in a deterioration of the performance of perovskite solar cells.
Method used
By doping metal ions into fullerene material, a fullerene electron transport layer with metal ions doping is formed to avoid the influence of oxygen or impurities, and improve structural stability and electrical conductivity.
Benefits of technology
It significantly improves the efficiency, stability and cost-effectiveness of perovskite solar cells and extends the service life of the battery.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a perovskite solar cell and a preparation method thereof, the solar cell comprises a substrate, a hole transport layer, a perovskite active layer, an electron transport layer, a buffer layer and an electrode which are sequentially laminated, the material of the electron transport layer comprises fullerene doped with metal ions, and the material of the buffer layer comprises fullerene doped with metal ions. According to the structure, the metal ions are doped in the fullerene material, the metal ions can avoid the influence of oxygen or impurities in initial fullerene powder, the metal ion doped fullerene has better structural stability, high temperature resistance and chemical stability, the electron concentration in the fullerene material is remarkably improved due to doping of the metal ions, and the performance of the fullerene material is improved. Therefore, the conductivity of the metal ion doped fullerene is improved, and the conductivity and optical activity of the electron transport layer are further improved, so that the problem that the performance of the perovskite solar cell is reduced due to abnormal coalescence of the fullerene material in the prior art is solved.
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