Conductor, Disordered, Semiconductor, Transitional, Wavelength for luminescence

• Eu-O-Y
• O-Zn
• S-Zn
• Er-O-Y-Yb
• Ba-O-Ti
• semiconductor
• transitional
• disordered
• conductor
• chalcogen
• cubic
• tetragonal
• hexagonal
• monoclinic
• trigonal