Facile synthesis of lanthanide vanadates and their luminescent properties |
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| Affiliation: | 2. Cobalt Institute, Umkirch, Germany;3. EBRC Consulting GmbH, Hannover, Germany;4. NiPERA Inc., Durham, NC, United States;5. ARCHE Consulting, Leuven, Belgium;6. Université catholique de Louvain, Brussels, Belgium;1. Pharmacokinetics & Metabolism Div., CSIR — Central Drug Research Institute, Lucknow 226031, India;2. Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawan, Rafi Marg, New Delhi 110 001, India;3. Medicinal & Process Chemistry Div., CSIR — Central Drug Research Institute, Lucknow 226031, India;4. Pharmacology Div., CSIR — Central Drug Research Institute, Lucknow 226031, India;5. Sophisticated Analytical Facility, CSIR — Central Drug Research Institute, Lucknow 226031, India |
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| Abstract: | GdVO4:Eu3+, Bi3+ with tetragonal phase has been successfully synthesized by employing efficient irradiations. The assembly of composites with fine grains based on acoustic energy and microwave radiation requires low temperature (90 °C) and short reaction time (60 min). All the compounds exhibited red emissions and they can be sensitized through the doped Bi3+ ions. The dependence of pH changes and doping concentration on the fluorescence features has been discussed. The photoluminescence measurements show that the optical properties achieved the best results at pH = 9 for GdVO4:Eu3+(5 mol%), Bi3+(1 mol%) or pH = 7 for GdVO4:Eu3+. |
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| Keywords: | Microwave Europium Luminescence |
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