Alkali, Semiconductor, Ketterson

• As-Na-Se
• As-Li-Na-Se
• As-Li-Se
• As-Li-S
• As-Li-Na-S
• optical properties
• electronic and electrical properties
• phonons
• non-linear optics
• Raman spectra
• semiconductor
• alkali
• conductor
• chalcogen
• metalloid
• monoclinic
• orthorhombic
• hexagonal
• trigonal
• triclinic