Modification of a standard Al-BSF solar cell line into PERC using PECVD

This study is devoted to comprehensive study of the physical and electrical properties of solar cells manufactured on the basis of the Kazakhstan multicrystalline silicon of solar grade (SoG-Si). The study applied: 4-point resistance measurement method, a method of microwave detected photoconductive decay ($\mu$-PCD), a method of Light Beam Induced Current (LBIC), methods for spectrometric analysis of reflection, transmission and photoluminescence coefficients, scanning electron microscopy, and methods for analyzing current-voltage characteristics. The batches of Al-BSF and PERC photovoltaic converters based on Kazakhstani silicon were manufactured and analyzed. To improve efficiency, the study proposes a modification of a standard Al-BSF production line to a PERC line using PECVD.