Cell and atoms, Chalcogen, Disordered, Electronic energy gap

• C-H-N-O
• Al-H-Na-O-Si
• Al-Ca-H-O-Si
• Al-H-Mg-O-Si
• La-Mn-O-Sr
• values of electronic energy gap
• energy gap for direct transition
• energy gap for indirect transition
• disordered
• chalcogen
• transitional
• oxide
• cubic
• orthorhombic
• tetragonal
• monoclinic
• trigonal