Preparation, structure and characterization of nanocrystalline‐Nd:Y3Ga5O12

Verma, Aditya ; Malhan, Neelam ; Ganguli, Ashok K. (2012) Preparation, structure and characterization of nanocrystalline‐Nd:Y3Ga5O12 Materials Letters, 81 . pp. 242-244. ISSN 0167-577X

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We have studied the synthesis of Nd doped Y3Ga5O12 (Nd:YGG) nano-powder and optimized the conditions for obtaining pure phases by the coprecipitation route using NH4HCO3 as the precipitant. The precursor obtained was calcined at 900 °C for 2 h to transform it into pure Nd:YGG. Rietveld refinement of X-ray diffraction data confirms the cubic structure of YGG. The particle size of Nd:YGG was found to be ~ 10 nm (a much smaller size than most of the earlier reports on YGG). High-resolution transmission electron microscopic (HRTEM) images showed the highly crystalline nature of as-synthesized YGG nanopowder. Photoluminescence spectroscopy confirms that the doping of Nd3+ ions substitutes the Y3+ ions in the YGG crystalline lattice which enables Nd:YGG nanopowders to be a suitable candidate for YGG based transparent ceramics for laser applications.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Nanocrystalline Materials; Ceramics; Optical Materials and Properties; Electron Microscopy
ID Code:112093
Deposited On:28 Sep 2017 12:29
Last Modified:28 Sep 2017 12:29

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