Chalcogen, Conductor, Disordered, Oxide, Energy gap for indirect transition

• O-Ti
• O-Sr-Ti
• Cd-O
• Ba-Cu-F-O-Y
• In-O
• oxide
• conductor
• chalcogen
• disordered
• semiconductor
• cubic
• tetragonal
• trigonal
• orthorhombic
• monoclinic