Morphology Tuning of Strontium Tungstate Nanoparticles

Journal Article · Wed Aug 22 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2776695· OSTI ID:21032678

Joseph, S; George, T ^[1]; George, K C ^[2]; Sunny, A T; Mathew, S ^[3]

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1. Nirmala College, Muvattupuzha, 686 661, Kerala (India)
2. S.B. College, Changanacherry, 686 101, Kerala (India)
3. School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686 560, Kerala (India)

Strontium tungstate nanocrystals in two different morphologies are successfully synthesized by controlled precipitation in aqueous and in poly vinyl alcohol (PVA) medium. Structural characterizations are carried out by XRD and SEM. The average particle size calculated for the SrWO4 prepared in the two different solvents ranges 20-24 nm. The SEM pictures show that the surface morphologies of the SrWO4 nanoparticles in aqueous medium resemble mushroom and the SrWO4 nanoparticles in PVA medium resemble cauliflower. Investigations on the room temperature luminescent properties of the strontium tungstate nanoparticles prepared in aqueous and PVA medium shows strong emissions around 425 nm.

• OSTI ID: 21032678
• Journal Information: AIP Conference Proceedings, Vol. 929, Issue 1; Conference: First Sharjah international conference on nanotechnology and its applications, Sharjah (United Arab Emirates), 10-12 Apr 2007; Other Information: DOI: 10.1063/1.2776695; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BRASSICA
CRYSTALS
LUMINESCENCE
MORPHOLOGY
NANOSTRUCTURES
PARTICLE SIZE
PRECIPITATION
PVA
SCANNING ELECTRON MICROSCOPY
SOLVENTS
STRONTIUM TUNGSTATES
SURFACES
X-RAY DIFFRACTION