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Title: A study of structural, optical and dielectric properties of crystalline Sr{sub 2}Nb{sub 2}O{sub 7} nanoparticles synthesized by a modified combustion technique

Abstract

Nanocrystalline Strontium Pyroniobate is synthesized by a novel auto-igniting combustion technique. The X-Ray diffraction studies reveal that Strontium Niobate possesses orthorhombic structure. Phase purity and structure of the nanopowder is further examined using Fourier-Transform Infrared and Raman spectroscopy. The average particle size of the as prepared nanoparticles from the Transmission Electron Microscopy is 30 nm. Sr{sub 2}Nb{sub 2}O{sub 7} is a photoluminescent material and the optical band gap determined from the UV-DRS spectrum is 2.7eV. The sample is sintered at an optimized temperature of 1350°C for 2 hours and obtained maximum density. The dielectric constant and loss factor values obtained at 5MHz for a well-sintered Strontium Niobate pellet is found to be 40 and 3.9×10{sup −3} respectively, at room temperature.

Authors:
 [1]; ;  [2];  [3]
  1. Department of Physics, St. Aloysius' College, Edathua, Alappuzha, Kerala (India)
  2. Electronic Materials Research Laboratory, Department of Physics, Mar Ivanios College, Thiruvananthapuram- 695015, Kerala (India)
  3. Department of Physics, St. John's College, Anchal-691306, Kerala (India)
Publication Date:
OSTI Identifier:
22264093
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1576; Journal Issue: 1; Conference: OMTAT 2013: 2. international conference on optoelectronic materials and thin films for advanced technology, Kochi, Kerala (India), 3-5 Jan 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; COMBUSTION; CRYSTALS; DENSITY; FOURIER TRANSFORMATION; NANOSTRUCTURES; NIOBATES; ORTHORHOMBIC LATTICES; PARTICLE SIZE; PARTICLES; PERMITTIVITY; PHOTOLUMINESCENCE; RAMAN SPECTROSCOPY; SPECTRA; STRONTIUM; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Mathai, K. C., Vidya, S., Thomas, J. K., and Solomon, Sam. A study of structural, optical and dielectric properties of crystalline Sr{sub 2}Nb{sub 2}O{sub 7} nanoparticles synthesized by a modified combustion technique. United States: N. p., 2014. Web. doi:10.1063/1.4862016.
Mathai, K. C., Vidya, S., Thomas, J. K., & Solomon, Sam. A study of structural, optical and dielectric properties of crystalline Sr{sub 2}Nb{sub 2}O{sub 7} nanoparticles synthesized by a modified combustion technique. United States. https://doi.org/10.1063/1.4862016
Mathai, K. C., Vidya, S., Thomas, J. K., and Solomon, Sam. 2014. "A study of structural, optical and dielectric properties of crystalline Sr{sub 2}Nb{sub 2}O{sub 7} nanoparticles synthesized by a modified combustion technique". United States. https://doi.org/10.1063/1.4862016.
@article{osti_22264093,
title = {A study of structural, optical and dielectric properties of crystalline Sr{sub 2}Nb{sub 2}O{sub 7} nanoparticles synthesized by a modified combustion technique},
author = {Mathai, K. C. and Vidya, S. and Thomas, J. K. and Solomon, Sam},
abstractNote = {Nanocrystalline Strontium Pyroniobate is synthesized by a novel auto-igniting combustion technique. The X-Ray diffraction studies reveal that Strontium Niobate possesses orthorhombic structure. Phase purity and structure of the nanopowder is further examined using Fourier-Transform Infrared and Raman spectroscopy. The average particle size of the as prepared nanoparticles from the Transmission Electron Microscopy is 30 nm. Sr{sub 2}Nb{sub 2}O{sub 7} is a photoluminescent material and the optical band gap determined from the UV-DRS spectrum is 2.7eV. The sample is sintered at an optimized temperature of 1350°C for 2 hours and obtained maximum density. The dielectric constant and loss factor values obtained at 5MHz for a well-sintered Strontium Niobate pellet is found to be 40 and 3.9×10{sup −3} respectively, at room temperature.},
doi = {10.1063/1.4862016},
url = {https://www.osti.gov/biblio/22264093}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1576,
place = {United States},
year = {Tue Jan 28 00:00:00 EST 2014},
month = {Tue Jan 28 00:00:00 EST 2014}
}