NEW PROMISING C-SI SOLAR CELL AND BUSBAR CONCEPTS FOR INDUSTRY APPLICATION

摘要

Different busbar concepts with three, four, five and six busbars (BB) on standard silicon solar cells on both full cell format (156 mm × 156 mm) and half-cell format (156 mm × 78 mm) were investigated. 40 prepared single-cell mini module specimens, five of each per variation, were tested with a flash cell tester to determine series resistance and maximum power for a relative comparison. Simulations with original measured parameters were compared to the determined values of the experiment. A dependency was found between the number of busbars and the finger grid design, all together affecting series resistance and efficiency. An optimized busbar concept with at least 4-BB technology is recommended as a first step due to performance improvement and economic issues.