研究目的
To investigate the stability improvement and performance reproducibility enhancement of perovskite solar cells through dimensionality engineering using a (FA/MA/Cs) PbI3-xBrx/(CH3)3SPbI3 bilayer architecture.
研究成果
The 3D/1D perovskite bilayer architecture significantly improves the stability and performance reproducibility of PSCs. The (CH3)3SPbI3 layer acts as a protective barrier against ionic migration and charge carrier recombination, enhancing device stability under ambient conditions and light stress. This approach demonstrates the potential of interface engineering in developing efficient and stable perovskite solar cells.
研究不足
The study focuses on the stability and performance of PSCs under specific conditions (ambient and light stress) without encapsulation. The long-term stability under operational conditions and the scalability of the fabrication process are not addressed.
1：Experimental Design and Method Selection:
The study employs a dimensionality engineering approach to fabricate a 3D/1D perovskite bilayer architecture using solution processes.
2：Sample Selection and Data Sources:
The samples include perovskite solar cells with and without the 1D perovskite layer, characterized under various conditions.
3：List of Experimental Equipment and Materials:
Includes XRPD for structural analysis, UV-Vis spectroscopy for optoelectronic properties, SEM and AFM for morphology, UPS for electronic structure, and photovoltaic performance evaluation under 1 sun illumination.
4：Experimental Procedures and Operational Workflow:
Fabrication of PSCs involves spin-coating and thermal evaporation techniques, followed by characterization and stability tests.
5：Data Analysis Methods:
Analysis includes PL spectra, EIS for charge transfer and recombination, and statistical analysis of photovoltaic parameters.
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