Alkali, Cell and atoms, Electronic energy gap, Orthorhombic

• Na-O-V
• Al-H-Na-O-Si
• H-Na-O-P
• Ce-Ge-Li
• Al-Na-O-Si
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• alkali
• non-disordered
• chalcogen
• transitional