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Indra Raj Pandey
지하실험 연구단
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Synthesis, Luminescence and Optical Properties of a CaMoO4 Nano-Powder Prepared by Using the Precipitation Method

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Title
Synthesis, Luminescence and Optical Properties of a CaMoO4 Nano-Powder Prepared by Using the Precipitation Method
Author(s)
Karki S.; Aryal P.; Ha D.; Kim H.J.; Park H.K.; Indra, Raj Pandey
Publication Date
2019-10
Journal
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.75, no.7, pp.534 - 540
Publisher
KOREAN PHYSICAL SOC
Abstract
© 2019, The Korean Physical Society.Nano powders of CaMoO4 were synthesized by using the precipitation method, and the obtained powders were dried inside a vacuum oven at 120 °C. The phases of powders were analyzed by using X-ray diffraction (XRD), which revealed that CaMoO4 was free from any extra phases. The surface morphologies of the powders were studied by using transmission electron microscopy (TEM), and the average particle sizes were quite small, being in the range of 7 nm. The optical properties were characterized by using ultraviolet-visible (UV-vis) absorption spectroscopy and the optical energy band gap was found to be 5.51 eV. The fluorescence decay time and the luminescence spectrum of the sample were measured under the excitation by Laser (266 nm), X-ray and proton sources. The obtained results were compared with the CaMoO4 bulk crystal and sintered powder obtained from the solid state reaction
URI
https://pr.ibs.re.kr/handle/8788114/6560
ISSN
0374-4884
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > Journal Papers (저널논문)
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