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Metal Grid Finger Design Optimization for Cell to Module Ratio Using the Configurable Current Cell Technology
B. Damiani, A. Ebong
Shading, Silver, Metallization, Cell to Module, Grid Finger
New Materials and Concepts for Photovoltaic Devices
Subtopic: New Materials and Concepts for Cells and Modules
Event: 38th European Photovoltaic Solar Energy Conference and Exhibition
Session: 1AO.1.6
10 - 13
ISBN: 3-936338-78-7
Paper DOI: 10.4229/EUPVSEC20212021-1AO.1.6
0,00 EUR
Document(s): paper, presentation


The continued reduction in the amount of silver used to decrease the cost of solar energy is applied to a novel grid finger screen printed metallization design to improve the cell to module ratio for similar efficiency cells with different electrical parameters like open circuit voltage, short circuit current, and fill factor. Just as the current design of busbars has changed to incorporate segmented busbars, floating busbars or no busbars where a multi-wire module is used, the design of grid fingers needs to also evolve to eliminate redundant or unnecessary function within the solar cell device. Using a technology like the Configurable Current Cell shown in this paper will provide additional methods to reduce the amount of any metal needed to optimize the performance of a solar module by coupling the current collected by grid fingers to a particular busbar.