Title: Preparation of nanostructures LaPO4 films by sol-gel reaction with different annealing temperature

Authors: A.Z. Zainurul; F.S. Husairi; M. Rusop; S. Abdullah

Addresses: Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; NANO-SciTech Centre (NST), Institute of Science, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia ' Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; NANO-SciTech Centre (NST), Institute of Science, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia ' NANO-SciTech Centre (NST), Institute of Science, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; NANO-ElecTronic Centre (NET), Faculty of Electrical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia ' Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia

Abstract: Thin films of lanthanum phosphate (LaPO4) nanostructures were fabricated on quartz substrate using sol-gel spin coating method subsequent with drying and annealing process. Increase of annealing temperature will increase the intensity of diffraction peaks; reveal that the particle size and crystalline increase with temperature. A monoclinic structure was shown to be present in LaPO4 thin films after first anneal at 200°C. The LaPO4 nanostructures of average size 30-50 nm were observed with field emission scanning electron microscopy. While the crystallise size were measured with X-ray diffraction (XRD). The images of LaPO4 nanostructure films show uniformity of samples with homogenously close-packed morphology.

Keywords: sol-gel; anneal temperature; lanthanum phosphate; LaPO4; ethylenediamine tetraacetic acid; EDTA; nanostructures; luminescence; morphology; spin coating; X-ray diffraction; XRD; field emission scanning electron microscopy; FESEM; UV-Vis; nanotechnology.

DOI: 10.1504/IJMATEI.2014.059488

International Journal of Materials Engineering Innovation, 2014 Vol.5 No.1, pp.3 - 11

Published online: 21 Feb 2014 *

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