Journal
SOLID STATE COMMUNICATIONS
Volume 277, Issue -, Pages 7-12Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2018.04.006
Keywords
LaNbO4; solid-state reaction; Luminescence properties; Density function theory
Categories
Funding
- National Natural Science Foundation of China [51502292, 61405206]
- National Key Research and Development Program of China [2016YFB0402101]
- China Scholarship Council [201706340135]
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In this work, LaNbO4 polycrystalline with monoclinic structure was prepared by traditional high-temperature solid-state reaction method. Its structure was determined by X-ray diffraction and its unit cell parameters were obtained with Rietveld refinement method. Its luminescence properties including excitation, emission spectrum as well luminescence lifetime were characterized in experiment. Besides, a systematic theoretical calculation based on the density function theory methods was performed on LaNbO4. The calculated band gap is in good agreement with that obtained in experiment. A comparison of the calculated and experimental refractive index and reflectivity between LaNbO4, YNbO4 and GdNbO4 was made. All the obtained results provide an essential understanding of LaNbO4.
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