El akkad

• Li-Mg-Te-Zn
• Cu-Se-Te
• Cu-S-Te
• Mg-Te-Zn
• Cu-Te-Zn
• electronic and electrical properties
• optical properties
• optical absorption
• thermal and thermodynamic properties
• thermoelectric power
• chalcogen
• transitional
• metalloid
• semiconductor
• conductor
• hexagonal
• cubic