Controlled Orientation and Improved Photovoltaic Characteristics of Cu(In,Ga)Se₂ Solar Cells via Using In₂Se₃ Seeding Layers

Figure 6

Current-voltage characteristics of the fabricated Cu(In,Ga)Se₂ solar cells employing the seeding layers (a) without selenization and selenized at (b) 300°C, (c) 400°C, and (d) 500°C.