Abstract
Pure, Eu3+, Dy3+ or Nd3+-doped NiNb2O6 powders have been prepared by a molten salt synthesis method by using Li2SO4–Na2SO4 salt mixture as a flux at relatively low temperatures as compared to the solid state reaction method. X-ray diffraction patterns of pure NiNb2O6 samples indicated an orthorhombic single phase. For Eu3+-doped NiNb2O6 samples, the luminescence of Eu3+ was observed at 615nm as red emission while Dy3+-doped NiNb2O6 showed yellow emission at 577nm and Nd3+ doped sample exhibited a typical emission at 1064nm varying with the Eu3+ or Nd3+ doping concentrations. These luminescence characteristics of the doped samples may be attributed to the energy transfer between rare earth ions and NiO6 octahedral groups in the columbite structure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
