Characterization of Nanocrystalline SiGe Thin Film Solar Cell with Double Graded-Dead Absorption Layer
Figure 3
(a) The spectral dependence of the absorption coefficient for the SiGe films with different gas ratios. (b) The Tauc energy band gap as a function of the gas ratio. (c) The Urbach plots of the SiGe films with different gas ratios.
