Accelerated Life Test for Photovoltaic Cells Using Concentrated Light

Table 1

The ac parameters of the photovoltaic cells at 1000 W/m² and 25°C.

Type of photovoltaic cell	Ageing test	[Ω]	[Ω]	[nF]
Monocrystalline silicon without load	Before	0.23 ± 0.01	49.67 ± 0.2	644.3 ± 3.5
	After	0.76 ± 0.01	24,23 ± 0.16	432.4 ± 2.5
Monocrystalline silicon with load	Before	0.22 ± 0.01	49.71 ± 0.2	642.3 ± 3.5
	After	0.45 ± 0.01	38,23 ± 0.16	552.4 ± 2.5
InGaP/InGaAs/Ge without load	Before	0.87 ± 0.012	18.42 ± 0.12	(19.43 ± 0.1) 10^3
	After	0.881 ± 0.012	18.39 ± 0.12	(19.42 ± 0.1) 10^3