GRAIN SIZE EFFECT ON STRUCTURAL AND OPTICAL PROPERTIES OF LSMO NANOPARTICLES

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Published: 2015-05-20

Page: 52-58


M. VIGNESWARI *

Department of Physics, P.S.R Engineering College, Sevalpatti – 626 140, Tamil Nadu, India and Department of Physics, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu, India

S. SUDHARSAN

Department of Chemistry, P.S.R Engineering College, Sevalpatti – 626 140, Tamil Nadu, India.

R. SRINIVASAN

Department of Physics, P.S.R Engineering College, Sevalpatti – 626 140, Tamil Nadu, India

S. SANKARRAJAN

Department of Physics, Unnamalai Institute of Technology, Kovilpatti - 628 503, India

*Author to whom correspondence should be addressed.


Abstract

Structural and optical properties of La(1-x)SrxMnO3 (LSMO) nanoparticles, synthesized by the solid state reaction technique followed by the ball milling method. The X-ray powder diffraction (XRD) pattern of LSMO perovskite nanocrystal confirms the rhombohedral crystal structure. Transmission electron microscope (TEM) micrograph further confirms the formation of LSMO nanoparticles of size 10 to 20 nm. Photoluminescence spectra of LSMO nanoparticles have been studied for two different grain sizes of LSMO nanoparticles. It confirms the wider and higher intensity peak has been observed in lower grain size sample due to their disordered structure. The relationship between the grain size and absorption edge nanoparticles are determined by UV–vis absorption spectra.

Keywords: Perovskites, nanoparticles, photoluminescence, optical property, grain size


How to Cite

VIGNESWARI, M., SUDHARSAN, S., SRINIVASAN, R., & SANKARRAJAN, S. (2015). GRAIN SIZE EFFECT ON STRUCTURAL AND OPTICAL PROPERTIES OF LSMO NANOPARTICLES. Journal of Applied Physical Science International, 3(2), 52–58. Retrieved from https://ikprress.org/index.php/JAPSI/article/view/2868

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