Molten salt synthesis and optical properties of Eu3+, Dy3+or Nd3+ doped NiNb2O6 columbite-type phosphors |
| |
| Affiliation: | 1. Marmara University, Department of Chemistry, Kadıkoy, 34777 Istanbul, Turkey;2. Marmara University, Department of Physics, Kadıkoy, 34777 Istanbul, Turkey;3. Marmara University, Department of Materials and Metallurgy Engineering, Kadıkoy, 34777 Istanbul, Turkey;1. Department of Materials Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran;2. Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran;3. Department of Materials Engineering, Malek Ashtar University of Technology, Shahinshahr, Isfahan, Iran;1. Department of Chemistry-UGC Sponsored Centre for Advanced Studies, Guru Nanak Dev University, Amritsar 143005, India;2. Lovely Professional University, Phagwara 144411, India;1. Department of Applied Chemistry, School of Science, Northwestern Polytechnical University, Xi''an, Shaanxi, 710129, PR China;2. Kocel New Energy Material Limited, Yinchuan, Ningxia, 750021, PR China;1. Fujian Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen 361005, China;2. School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, China;3. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China |
| |
| 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 615 nm as red emission while Dy3+-doped NiNb2O6 showed yellow emission at 577 nm and Nd3+ doped sample exhibited a typical emission at 1064 nm 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. |
| |
| Keywords: | Optical properties Columbite niobate Molten salt synthesis |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
