Photoluminescence and local structure of Eu(III)-doped zirconium silicates

摘要: Abstract Synthetic umbite microporous zirconium silicates doped with different concentrations of Eu3+ are used as phosphorus and precursor for preparing novel luminescence dense materials, analogues the mineral wadeite. Both display a high stable room temperature emission in visible spectral region. The number Stark components detected Eu3+-doped wadeite indicates presence one two optically active environments, respectively. From features, we inferred that replace K+ located large eight-membered rings, whereas sites corresponds to an isomorphous Eu3+/K+ substitution other replacement Zr4+ ions.