Cell-only, Chalcogen, Electronic energy gap, Trigonal

• Ge-Sb-Te
• H-O
• O-Tl-V
• Ba-La-O-Ti
• Al-C-H-Ni-O
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• cell-only
• chalcogen
• transitional
• disordered