Chalcogen, Disordered, Thermal energy gap

• Ir-O-Sr
• O-V
• O-U
• Ga-Se-Tl
• Bi-F-La-O-S
• disordered
• chalcogen
• conductor
• semiconductor
• transitional
• cubic
• tetragonal
• orthorhombic
• monoclinic
• trigonal