Electronic energy gap, Na-S, Non-disordered

• H-Na-O-S
• Na-O-S
• H-Na-O-S-U
• Na-O-S-V
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• chalcogen
• alkali
• non-disordered
• sulfide
• monoclinic
• orthorhombic
• trigonal
• triclinic
• tetragonal