Unique dielectric features of a ceramic-semiconductor nanocomposite MgNb2O6+0.25Zn(0.5)Cd(0.5)S
authors Pukazhselvan, D; Selvaraj, NB; Bdikin, I; Saravanan, RSS; Jakka, SK; Soares, MJ; Fagg, DP
nationality International
journal APPLIED SURFACE SCIENCE
author keywords Ceramics; Semiconductors; Composites; Dielectric constant
keywords MAGNESIUM NIOBATE POWDERS; CHEMICAL-SYNTHESIS; QUANTUM DOTS; MGNB2O6; COLUMBITE
abstract The present communication deals with the optical/dielectric characteristics of MgNb2O6 + 0.25Zn(0.5)Cd(0.5)S nanocomposite (10-30 nm) mixture. Zn0.5Cd0.5S (size similar to 10 nm) was synthesized by microwave assisted solvo-thermal method. Monophase magnesium niobate (MN) nanoparticles (10-20 nm) were synthesized in a single step by mechanochemical treatment of MgO + Nb2O5 under dry N-2 atmosphere. The nanocomposite, MgNb2O6 + 0.25Zn(0.5)Cd(0.5)S, was prepared by mechanical admixing of MgNb2O6 and Zn0.5Cd0.5S taken in 4:1 molar ratio. The photoluminescence study shows violet, yellow and orangered emissions by the MgNb2O6 + 0.25Zn(0.5)Cd(0.5)S composite. The observed dielectric constant value (epsilon) for MgNb2O6 + 0.25Zn(0.5)Cd(0.5)S is only 4.7, which is similar to 5 times smaller than the epsilon value of MgNb2O6 while a dielectric loss for the composite being closer to zero ensures promising commercial applications. (C) 2017 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 0169-4332
year published 2017
volume 424
beginning page 127
ending page 131
digital object identifier (doi) 10.1016/j.apsusc.2017.01.124
web of science category Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter
subject category Chemistry; Materials Science; Physics
unique article identifier WOS:000410608500020
  ciceco authors
  impact metrics
times cited (wos core): 0
journal impact factor (jcr 2016): 3.387
5 year journal impact factor (jcr 2016): 3.184
category normalized journal impact factor percentile (jcr 2016): 79.407
altmetrics:



 


Events
Sponsors

1suponsers_list_ciceco.jpg