研究目的
To analyze the properties of PbS thin films deposited by SILAR method and apply them in PbS/CdS heterojunction solar cells.
研究成果
PbS films deposited by SILAR at different cycles are optimal for obtaining higher thickness layers with a room temperature electrical resistivity of 13.6 Ωcm?1. The optimal conditions for maximum solar cell efficiency in a CdS/PbS heterojunction was for 40 cycles SILAR PbS due to material band gap energy.
研究不足
The study does not explore the effect of temperature variations on film properties. The efficiency of the solar cells is lower compared to theoretical predictions, possibly due to structural and morphological imperfections.
1：Experimental Design and Method Selection:
The study employed SILAR technique for PbS film deposition and CBD technique for CdS film deposition.
2：Sample Selection and Data Sources:
PbS films were deposited on corning and silicon wafers for structural and optical characterization, respectively.
3：List of Experimental Equipment and Materials:
Scanning electron microscope (Philips-FEG-XL30), X-Ray diffractometer (Rigaku D/MAX-2000), spectrophotometer (Film-Tek TM-3000), FTIR spectrometer (Perkin Elmer GX), Semiconductor Parameter Analyzer (Agilient 4155C).
4：Experimental Procedures and Operational Workflow:
PbS films were deposited with varying cycles (15, 20, 30, 40, 60) at room temperature. CdS films were deposited at 70°C for 60 min.
5：Data Analysis Methods:
XRD data were analyzed using JADE software. Optical properties were analyzed using Film-Tek software.
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