Metal dentrite-free solar cell

摘要

A solar cell assembly including a semiconductor wafer (10) having a solar cell portion (12, 14) and a wing portion (26), wherein the wing portion (26) is electrically isolated from the solar cell portion (12, 14), and an electrical contact material (22) positioned on the solar cell portion. The wing portion (26) may be electrically isolated via isolation channels (28) and is substantially free of the electrical contact material (22). The negative impact of metal dendrites forming in particular on the grid tips (34) of the grid lines (30) is thereby avoided.