研究目的
Investigating the effects of spray solution precipitation on the electrical and optical properties of FTO thin ?lms.
研究成果
The FTO thin ?lm obtained from unprecipitated solution showed the highest figure of merit, indicating that precipitation in the precursor solution negatively affects electrical and optical properties. Both dissolving SnCl2.2H2O in HCl and NH4F in distilled water before adding to the starting solution are necessary to prevent precipitation.
研究不足
The study focused on the effects of solution preparation on FTO properties without aiming for maximum electrical conductivity and transparency. Further research is needed to model precipitate formation and quantitatively analyze precipitation reasons.
1：Experimental Design and Method Selection:
The study employed spray pyrolysis deposition (SP) for FTO thin ?lm deposition, focusing on the effects of different spray solution preparation methods on the film's properties.
2：Sample Selection and Data Sources:
Four different spray solutions were prepared, varying in the use of distilled water and HCl, to study precipitation effects.
3：List of Experimental Equipment and Materials:
SnCl
4：2H2O and NH4F were used as precursors, with ethanol as a solvent. Equipment included an air spray gun, hotplate, and various characterization tools like XRD, SEM, UV-Vis spectrophotometer, and AFM. Experimental Procedures and Operational Workflow:
Solutions were sprayed onto glass substrates at 450°C, with intervals to prevent temperature drop. Characterization was performed to analyze structural, electrical, and optical properties.
5：Data Analysis Methods:
Data on sheet resistance, resistivity, electron concentration, and mobility were analyzed to understand the impact of solution preparation on FTO properties.
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