To achieve high efficiency solar cells, series resistance plays a major role, and front side grid resistance is one of the components. The front side grid resistance on its turn is dependent on the print definition and print quality. A practical assessment of the grid resistance & print quality is to measure the resistance in between two busbars (B2B resistance).
SunLab B2B is made for measuring the resistance of all fingers between two busbars on an H-pattern solar cell. The B2B resistance is a direct measure for the print quality. At the same time the B2B resistance is the information needed to quantify the resistance of a finger and to obtain a direct value for modeling, etc.