研究目的
Investigating the performance optimization of FAxCs(1?x)Pb(IyBr(1?y))3 perovskite solar cells with thickness controlled transport layers.
研究成果
The research successfully demonstrated an improved manufacturing process for perovskite solar cells, achieving efficiencies up to 19%. The use of FA0.8Cs0.2Pb(I0.86Br0.14)3 as the perovskite material and controlled layer thicknesses contributed to enhanced performance. Future work will focus on surpassing the 21% efficiency mark.
研究不足
The study acknowledges the need for further improvement in the fabrication process environment to surpass current technology efficiencies. The lack of an antireflection coating, passivation, and additives in the EQE measurements indicates areas for future optimization.
1：Experimental Design and Method Selection:
The study focuses on the fabrication and characterization of perovskite solar cells with controlled layer thicknesses and chemical compositions.
2：Sample Selection and Data Sources:
Samples were fabricated using FTO coated glass substrates, SnO2 as the electron transport layer, a mixed halide perovskite layer, Spiro-OMeTAD as the hole transport layer, and silver as the back contact.
3：List of Experimental Equipment and Materials:
Equipment includes a solar simulator, XPS, PL spectroscopy, AFM, SEM, and a spin coater. Materials include FTO glass, SnO2, FA
4：8Cs2Pb(I86Br14)3, Spiro-OMeTAD, and silver. Experimental Procedures and Operational Workflow:
The fabrication process involved cleaning the substrates, depositing SnO2 by spin-coating, depositing the perovskite layer via a two-step spin-coating method, and finally depositing Spiro-OMeTAD and silver contacts.
5：Data Analysis Methods:
Performance was evaluated using J-V curves, EQE measurements, PL spectroscopy, XPS, AFM, and SEM.
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