In Situ LID and Regeneration of PERC Solar Cells from Different Positions of a B-Doped Cz-Si Ingot

Table 1

The average values of lifetime, resistivity, and B, O, C, Fe, Cu, and Ni concentrations of five groups of Si wafers.

Group	Lifetime (μs)	Resistivity (Ω∙cm)	B (atoms/cm^3)	O (atoms/cm^3)	C (atoms/cm^3)	Fe (atoms/cm^3)	Cu (atoms/cm^3)	Ni (atoms/cm^3)
1	27.60	1.79
2	24.19	1.78
3	24.17	1.49
4	22.95	1.29
5	21.57	1.16