Segregation of Cu-In-S Elements in the Spray-Pyrolysis-Deposited Layer of CIS Solar Cells

Figure 3

XRD patterns of ⟨glass/FTO/TiO₂/In₂S₃⟩ (a), ⟨glass/Cu-In-S⟩ (b), ⟨glass/FTO/TiO₂/Cu-In-S⟩ (c), and ⟨glass/FTO/TiO₂/In₂S₃/Cu-In-S⟩ (d). Numbers in round brackets show the crystal plane of materials in reference to JCPDS card data.