Page 199 - Mirjam-Theelen-Degradation-of-CIGS-solar-cells

Degradation mechanisms of the aluminium doped zinc oxide front contact

(a)
Transmittance H 2O/O 2
80
Optical parameters (%) 60 Absorbance

40

20
Absorbance
0
500 1000 1500 2000
Wavelength (nm)

(b)
Transmittance H 2O
80 Absorbance
Optical properties (%) 40 Reflectance

60

20

0
500 1000 1500 2000
Wavelength (nm)

(c)
Transmittance H 2O/air
80 Absorbance
Optical parameters (%) 60

40

20
Reflectance
0
500 1000 1500 2000
Wavelength (nm)
Figure 6.16
Optical properties before (red) and after 310 hours exposure to various conditions (blue) which are (a) H 2 O/O 2 (b) non-
purged H 2 O (c) H 2 O/air.

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