研究目的
Investigating the fabrication of 2D/3D hybrid perovskite solar cells using an air-processed strategy and crystal-assistance method to improve photovoltaic performance and stability.
研究成果
The study demonstrates that the air-processed, 2D/3D hybrid perovskite crystal precursor-based self-assembly process can significantly improve the photovoltaic performance and moisture stability of perovskite solar cells. The best device achieved a PCE of 18.29% and retained 75% of its initial efficiency after 35 days in ambient conditions. This method provides a promising route for enhancing the efficiency and stability of air-processed perovskite solar cells.
研究不足
The study focuses on the use of Isobutyl amine (iBA) for reassembling high-n-value 2D perovskite and its impact on photovoltaic performance and stability. Potential areas for optimization include exploring other amines and further improving the air stability of the devices.
1：Experimental Design and Method Selection:
The study involves the fabrication of 2D/3D hybrid perovskite solar cells using an air-processed strategy and crystal-assistance method. The Isobutyl amine (iBA) is used to reassemble and form high-n-value 2D perovskite.
2：Sample Selection and Data Sources:
The samples include perovskite films fabricated by traditional solution-mixing method and crystal engineering-based method. Data sources include FTIR, XRD, PL, UV-vis, and SEM measurements.
3：List of Experimental Equipment and Materials:
Equipment includes Fourier transform infrared spectrometer (FTIR), X-ray diffractometer (XRD), photoluminescence spectrometer (PL), ultraviolet-visible spectrophotometer (UV-vis), and scanning electron microscope (SEM). Materials include Isobutyl amine (iBA), MAI, PbI2, and BAI.
4：Experimental Procedures and Operational Workflow:
The procedure involves growing 2D/3D hybrid perovskite crystals via inverse temperature crystallization, re-dissolving the crystals to fabricate films by one-step spin coating, and characterizing the films and devices.
5：Data Analysis Methods:
Data analysis includes comparing the photovoltaic performance and stability of devices based on different fabrication methods.
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