Na1.5(Na0.5Pb0.5)3P2Se8 cI128 220

• Ge-Li-Pb-S
• Na-P-Pb-Se
• Ge-Pb-S-Se-Sn
• Na-P-Pb-S
• Ge-Pb-Se-Sn
• optical properties
• phonons
• structural properties
• optical absorption
• wavenumber of optical phonon
• disordered
• chalcogen
• quaternary
• tripolyhedral
• alkali
• cubic