Performance, Design, and Interconnection Optimization of Shingled Solar Cell for a Photovoltaic Module Application

2024-11
Karahallı, Meryem Ezgi
Crystalline silicon (c-Si) solar cells are the cornerstone of the photovoltaic (PV) industry due to their high efficiency, long-term reliability, and low manufacturing costs. Recent advancements in PV technology have led to the development of shingled solar cells, which maximize active surface area and enhance energy efficiency through overlapping designs. This approach enables the development of high-power, high-efficiency modules by eliminating gaps between cell structures. Shingled solar cells are produced using electrically conductive adhesives (ECAs), which is an alternative to traditional metal ribbon connections, enabling a lead-free, solderless process. ECAs enhance structural integrity and electrical performance by reducing connection damage and providing a larger area for photocurrent generation. To optimize power output and ensure the reliability of shingled modules, it is essential to refine production parameters, including cell mask designs, laser scribing parameters, and adhesive application conditions during bonding and curing. This study investigates the integration of passivated emitter and rear contact (PERC) technology into shingled configurations, demonstrating their potential to improve energy production and durability. The optimized ECA-based interconnection process minimizes power loss caused by reductions in current density while maximizing module power within the same installation area. The cell strings produced will undergo lamination and performance testing to evaluate their reliability and efficiency. By combining advanced interconnection techniques with optimized adhesive properties, this study demonstrates the potential of shingled solar cells to achieve higher energy output, improved sustainability, and broader commercial applicability for PV modules. Future works will further refine these techniques, enhancing cell performance, and promoting their common implementation in photovoltaic module manufacturing.
Citation Formats
M. E. Karahallı, “Performance, Design, and Interconnection Optimization of Shingled Solar Cell for a Photovoltaic Module Application,” M.S. - Master of Science, Middle East Technical University, 2024.