Improved accuracy of eddy-current sensor based carrier lifetime measurement using laser excitation

EU PVSEC 2021: State of the Art and Developments in Photovoltaics

Open Access

Fig. 2

(a) Steady-state injection levels, , versus excitation wavelength for samples with different defect related bulk lifetimes. (b) Considering other factors as well, 1064 nm is proposed for detailed comparison with the earlier standard 980 nm. Parameters: S_front = 10⁶ cm/s, Φ = 2 × 10¹⁹ cm⁻² s⁻¹, p-type doping N_dop = 10¹⁶ cm⁻³.

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