New p-type Al-substituted SrSnO3 perovskite for TCO applications?

Novel p-type SrSn1-xAlxO3 (x=0, 0.2, 0.5) perovskites are presented as potential candidates for electro-optical applications. A combined experimental and theoretical study reveals that chemical substitutions can be used as a lever to stabilize oxygen holes in the valence band.