Analysis on SnO2 as an electron transfer layer for emerging solar cell applications

Muhammad Fauzi Peong, Nurin Izzati (2022) Analysis on SnO2 as an electron transfer layer for emerging solar cell applications. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Current high-efficiency solar cells are dominated by first-generation solar cells based on silicon wafers. While it is highly efficient, it also requires a high-cost fabrication process. Furthermore, being the first generation makes it a mature technology. The emerging third-generation solar cells have attracted researchers to study their performance. Referring to its achievements over the last two decades, it was found to be a solar cell that has the potential to overcome the limitations of previous solar cells. The electron transfer layer (ETL) is one of the important layers that need to be considered in the structure of this solar cell. Hence, SnO2 has been widely studied for its remarkable properties such as high mobility, broad bandgap, and high electron conductivity as an ETL. In this study, the potential of SnO2 as an ETL in the application on perovskite solar cell (PSC) using Solar Cell Capacitance Simulator (SCAPS-1D) was analyzed. This analysis was performed under different conditions of temperature, thickness, dopant density, and defect density. Then, a fabrication process is conducted to fabricate SnO2 thin film on ITO substrate with spin coat method. The conductivity and structure of the thin film is characterized by using Keithley 2400 meter and Scanning Electron Microscope (SEM).

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