Disordered, Electronic energy gap, O-Si, Tetragonal

• Al-H-Na-O-Si
• B-Cs-O-Si
• Ba-Cu-Ge-O-Si
• Al-K-O-Si
• Gd-N-O-Si
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• disordered
• chalcogen
• metalloid
• silicate