Eu-Sr, Lanthanoid, Optical properties, Orthorhombic

• Eu-N-Si-Sr
• Ba-Eu-O-S-Sr
• Al-Eu-N-Si-Sr
• Al-Ca-Eu-N-Si-Sr
• Bi-Eu-O-Sr-Ta
• luminescence
• values of luminescence
• photoluminescence spectra
• wavelength for luminescence
• reflectivity
• rare earth
• alkaline
• lanthanoid
• nonmetal
• luminescent