研究目的
Investigating the effects of Pb-site doping in organic–inorganic hybrid perovskites (OIH-LHPs) and inorganic CsPbX3-based materials on the efficiency and stability of perovskite solar cells (PSCs).
研究成果
Pb-site doping in OIH-LHPs and inorganic CsPbX3-based materials significantly improves the efficiency and stability of PSCs by participating in the crystalline process, modifying energy states, and enhancing stability. However, further research is needed to understand the exact structural changes induced by doping and to explore doping in Pb-less and Pb-reduced LHPs.
研究不足
The study is limited to Pb-site doping with a molar content of up to 5%. The exact structural information related to the crystallographic sites occupied by dopants and their distribution in perovskite requires further characterization. Additionally, the study calls for more DFT calculations to understand doping phenomena better.
1：Experimental Design and Method Selection:
The study focuses on Pb-site doping within a molar content of 5% in OIH-LHPs and inorganic CsPbX3-based perovskite materials. The doping effects on crystallization, energy states, and stability are analyzed.
2：Sample Selection and Data Sources:
Samples include doped and undoped perovskite materials, with data sourced from published works and theoretical studies.
3：List of Experimental Equipment and Materials:
Perovskite precursor solutions, doping ions (e.g., Sr2+, Zn2+, Ca2+, etc.), and various device structures for PSCs.
4：Experimental Procedures and Operational Workflow:
Doping ions are introduced into perovskite precursor solutions, followed by film formation and device fabrication. Characterization includes SEM, absorbance spectra, TRPL decays, and device performance testing.
5：Data Analysis Methods:
Analysis of film morphology, energy band structure changes, and device performance metrics (PCE, Voc, Jsc, FF).
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