Synthesis of CdMoO 4 :Sm 3+ phosphors at room temperature and investigation on photoluminescence properties
作者： N. Premjit Singh , N. Rajmuhon Singh , N. Mohondas Singh
DOI: 10.1016/J.IJLEO.2017.11.045
关键词:
摘要: Abstract In this work, we have synthesized CdMoO4:Sm3+ phosphors with tetragonal structure at room temperature by using co-precipitation method. The prepared sample contained adsorbed H2O molecules which is indicated Fourier transform infra red (FT–IR) spectroscopy. Studies on scanning electron microscopy (SEM) and transmission (TEM) exhibited the formation of spherical shape in as diameters ranges 10–30 nm. excitation spectra showed a strong broad band maximum 335 nm upon annealing sample, shift position absorption observed. Excitation peaks due to f-f transitions Sm3+ are observed 377, 405, 420, 439, 463 481 nm. Emission 564, 603, 646 707 nm UV light optimum concentration found be 5 at.%. emission intensity increases increase temperature. orange color samples could seen naked eyes. This result indicates that CdMoO4 can potential host for Sm3+.
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