Comparison of line-wise pl-imaging and area-wise pl-imaging

As a result it can be said that contrasts between regions of high and low recombination activity are more pronounced using the investigated Line-PLI setup, which qualifies it excellently for the visualization of process inhomogeneities causing defects on solar cell precursor. We calculate that the irradiance of the investigated setup is still low enough to differentiate between regions of different Shockley-Read-Hall recombination if the effective sample lifetimes are roughly below 250 µs. Moreover we derive an uncertainty of 24 % on the absolute values of effective lifetime using the Area-PLI setup while we derive an uncertainty of only 8 % on the absolute values of effective lifetime using the Line-PLI setup for the investigated samples.