研究目的
Investigating the impact of growth temperature on nanorod morphology and optical properties for CH3NH3PbI3 perovskite solar cell device application.
研究成果
The study concluded that growth temperature significantly affects the morphology and optical properties of ZnO NRs, with 100 oC showing the best results. However, the presence of unconverted PbI2 in the perovskite films limited the current generation, suggesting areas for further optimization in the fabrication process.
研究不足
The study found that the presence of PbI2 in the perovskite films, which was not fully converted to CH3NH3PbI3, led to a low current value, indicating less than perfect light absorbing ability. The method's success in converting PbI2 to CH3NH3PbI3 needs optimization.
1:Experimental Design and Method Selection:
The study employed a hydrothermal method for synthesizing ZnO NRs on ITO substrates and a two-step deposition method for fabricating CH3NH3PbI3 perovskite solar cells.
2:Sample Selection and Data Sources:
ITO substrates were used for the growth of ZnO NRs and perovskite films.
3:List of Experimental Equipment and Materials:
Equipment included SEM (FEI INSPECT-S50 type), XRD (PHILIPS X’Pert PRO), FTIR, IV meter, and LCR AC meter. Materials included zinc acetate dihydrate, ethanol, hexamethylenetetramine (HMT), zinc nitrate, PbI2, and CH3NH3I.
4:3I. Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The process involved the preparation of ITO substrates, synthesis of ZnO seed layer by spin coating, growth of ZnO NRs by hydrothermal method, and fabrication of perovskite films by two-step deposition.
5:Data Analysis Methods:
Structural and morphological analysis was performed using XRD and SEM, optical properties were analyzed using FTIR, and electrical properties were measured using IV meter and LCR AC meter.
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