Electronic and electrical properties, Ge-Se, Ge-x polyhedra, Orthorhombic

• Cu-Ge-Se
• Ge-Na-Se
• Ge-Se-Sn
• Cd-Cu-Ge-Se
• electronic energy gap
• effective mass
• permittivity (dielectric constant)
• electrical conductivity
• values of electronic energy gap
• selenide
• chalcogen
• metalloid
• non-disordered
• conductor