研究目的
To enhance the open circuit voltage of CdTe solar cells by incorporating a thin layer of P-type tellurium between CdTe and the back contact to reduce the potential energy barrier and improve interface quality.
研究成果
Incorporating a thin layer of tellurium between CdTe and the aluminum electrode reduces the potential energy barrier, enhancing the open circuit voltage to 0.7 V. This approach offers a potential pathway to improve CdTe solar cell performance without CdCl2 treatment.
研究不足
The study reports a high open circuit voltage but low current extraction, fill factor, and efficiency, attributed to high series resistance and the absence of CdCl2 treatment.
1：Experimental Design and Method Selection:
The study used thermal evaporation method to fabricate FTO/CdS/CdTe/Te/Al superstrate structured solar cells.
2：Sample Selection and Data Sources:
Commercial Fluorine doped SnO2 coated soda lime glass was used as the substrate.
3：List of Experimental Equipment and Materials:
Thermal evaporator, UV–Visible-NIR spectrometer, solar simulator, and Keithley 2400 sourcemeter were used.
4：Experimental Procedures and Operational Workflow:
Deposition of CdS, CdTe, and Te layers followed by annealing and characterization.
5：Data Analysis Methods:
Optical transmittance and I–V characteristics were analyzed to determine the device performance.
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