Chalcogen, Metal, Non-disordered, Electronic energy gap, Trigonal

• O-Si
• Bi-Te
• Bi-Fe-O
• Te
• Bi-Se
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• charge-transfer energy
• pressure derivative of energy gap
• non-disordered
• metal
• chalcogen
• conductor
• semiconductor