Jaganathan, Saravana Kumar and John peter, Anthuvan (2018) Synthesis and luminescence properties of CaGd2(MoO4)(4):Ln(3+) (Ln = Eu3+, Tb3+, Dy3+ and Sm3+) phosphors. Journal of Luminescence, 199 . pp. 53-59. ISSN 0022-2313
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Official URL: http://dx.doi.org/0022-2313
Abstract
The uniform monodisperse rectangular-like rare-earth-activated CaGd2(MoO4)4:Ln3+ (Ln?=?Eu3+, Tb3+, Dy3+ and Sm3+) phosphors have been synthesized by conventional solid state reaction method. The prepared phosphors were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscope (SEM) and photoluminescence (PL) spectroscopy measurements. The XRD and FTIR results showed a scheelite-type tetragonal structure for the prepared powder samples. FTIR spectra exhibited a high absorption band situated at around 846?cm-1, which was ascribed to the Mo–O antisymmetric stretching vibrations into the [MoO4]2- tetrahedron groups and the SEM image reveals particle size in the range of 120–160?nm. The excitation/emission spectra and life times were measured to characterize the luminescent properties of the phosphors. All properties show that CaGd2(MoO4)4:Ln3+ (Ln?=?Eu3+, Tb3+,Dy3+ and Sm3+) compounds are a very appropriate red, green, yellow and orange-red emitting light–emitting phosphors promising for lighting applications.
Item Type: | Article |
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Uncontrolled Keywords: | Molybdate, Photoluminescence |
Subjects: | Q Science > QD Chemistry |
Divisions: | Biosciences and Medical Engineering |
ID Code: | 85509 |
Deposited By: | Widya Wahid |
Deposited On: | 30 Jun 2020 08:49 |
Last Modified: | 30 Jun 2020 08:49 |
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