Structural analysis of enhanced ferroelectricity in nano-composite films of sodium nitrite in poly-vinyl alcohol matrix fabricated at moderate elevated temperature

Lakhbir Singh; Baljinder Kaur; Neeraj Kumar; Dae Yong Jeong; Navneet Dabra; Jasbir S. Hundal

doi:10.1016/s1452-3981(23)17458-x

Structural analysis of enhanced ferroelectricity in nano-composite films of sodium nitrite in poly-vinyl alcohol matrix fabricated at moderate elevated temperature

Lakhbir Singh, Baljinder Kaur, Neeraj Kumar, Dae Yong Jeong, Navneet Dabra, Jasbir S. Hundal

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

In the present study, various composite films of NaNO₂-PVA differing in their weight percentage composition have been prepared on brass substrates by solvent drop cast method at optimized elevated temperature of 70 0C. Improved ferroelectric response was observed in the films with equal weight percentage composition giving remanant polarization, Pr ~ 45.45 μC/cm². The peak polarization current density Jmax was also maximum for this composition with measured value of J_max = +6.13x10^-2A/cm² at 3.09 kV/cm and J_max = -6.13x10^-2A/cm² at -2.68 kV/cm. The average crystallite size calculated using Scherrer relation was found to be lying in the nano-scale range. This calculated value from XRD studies was in good agreement with the particle size observed with transmission electron microscopy (TEM). The minimum strain ~ 0.62% and increased b/a ratio ~ 1.6269 in the NaNO₂ - PVA nano-composite film containing equal weight percentage might have improved the ferroelectric phase of the nano-composite system exhibiting improved remanant polarization.

Original language	English
Pages (from-to)	4037-4049
Number of pages	13
Journal	International Journal of Electrochemical Science
Volume	11
Issue number	5
DOIs	https://doi.org/10.1016/s1452-3981(23)17458-x
State	Published - 1 May 2016

Bibliographical note

Publisher Copyright:
© 2016 The Authors. Published by ESG.

Keywords

Crystallite size
Ferroelectricity
Nano-pva composite-films
Strain
TEM
Xrd

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10.1016/s1452-3981(23)17458-x

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title = "Structural analysis of enhanced ferroelectricity in nano-composite films of sodium nitrite in poly-vinyl alcohol matrix fabricated at moderate elevated temperature",

abstract = "In the present study, various composite films of NaNO2-PVA differing in their weight percentage composition have been prepared on brass substrates by solvent drop cast method at optimized elevated temperature of 70 0C. Improved ferroelectric response was observed in the films with equal weight percentage composition giving remanant polarization, Pr ~ 45.45 μC/cm2. The peak polarization current density Jmax was also maximum for this composition with measured value of Jmax = +6.13x10-2A/cm2 at 3.09 kV/cm and Jmax = -6.13x10-2A/cm2 at -2.68 kV/cm. The average crystallite size calculated using Scherrer relation was found to be lying in the nano-scale range. This calculated value from XRD studies was in good agreement with the particle size observed with transmission electron microscopy (TEM). The minimum strain ~ 0.62% and increased b/a ratio ~ 1.6269 in the NaNO2 - PVA nano-composite film containing equal weight percentage might have improved the ferroelectric phase of the nano-composite system exhibiting improved remanant polarization.",

keywords = "Crystallite size, Ferroelectricity, Nano-pva composite-films, Strain, TEM, Xrd",

author = "Lakhbir Singh and Baljinder Kaur and Neeraj Kumar and Jeong, {Dae Yong} and Navneet Dabra and Hundal, {Jasbir S.}",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors. Published by ESG.",

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doi = "10.1016/s1452-3981(23)17458-x",

language = "English",

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Structural analysis of enhanced ferroelectricity in nano-composite films of sodium nitrite in poly-vinyl alcohol matrix fabricated at moderate elevated temperature. / Singh, Lakhbir; Kaur, Baljinder; Kumar, Neeraj et al.
In: International Journal of Electrochemical Science, Vol. 11, No. 5, 01.05.2016, p. 4037-4049.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Structural analysis of enhanced ferroelectricity in nano-composite films of sodium nitrite in poly-vinyl alcohol matrix fabricated at moderate elevated temperature

AU - Singh, Lakhbir

AU - Kaur, Baljinder

AU - Kumar, Neeraj

AU - Jeong, Dae Yong

AU - Dabra, Navneet

AU - Hundal, Jasbir S.

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Y1 - 2016/5/1

N2 - In the present study, various composite films of NaNO2-PVA differing in their weight percentage composition have been prepared on brass substrates by solvent drop cast method at optimized elevated temperature of 70 0C. Improved ferroelectric response was observed in the films with equal weight percentage composition giving remanant polarization, Pr ~ 45.45 μC/cm2. The peak polarization current density Jmax was also maximum for this composition with measured value of Jmax = +6.13x10-2A/cm2 at 3.09 kV/cm and Jmax = -6.13x10-2A/cm2 at -2.68 kV/cm. The average crystallite size calculated using Scherrer relation was found to be lying in the nano-scale range. This calculated value from XRD studies was in good agreement with the particle size observed with transmission electron microscopy (TEM). The minimum strain ~ 0.62% and increased b/a ratio ~ 1.6269 in the NaNO2 - PVA nano-composite film containing equal weight percentage might have improved the ferroelectric phase of the nano-composite system exhibiting improved remanant polarization.

AB - In the present study, various composite films of NaNO2-PVA differing in their weight percentage composition have been prepared on brass substrates by solvent drop cast method at optimized elevated temperature of 70 0C. Improved ferroelectric response was observed in the films with equal weight percentage composition giving remanant polarization, Pr ~ 45.45 μC/cm2. The peak polarization current density Jmax was also maximum for this composition with measured value of Jmax = +6.13x10-2A/cm2 at 3.09 kV/cm and Jmax = -6.13x10-2A/cm2 at -2.68 kV/cm. The average crystallite size calculated using Scherrer relation was found to be lying in the nano-scale range. This calculated value from XRD studies was in good agreement with the particle size observed with transmission electron microscopy (TEM). The minimum strain ~ 0.62% and increased b/a ratio ~ 1.6269 in the NaNO2 - PVA nano-composite film containing equal weight percentage might have improved the ferroelectric phase of the nano-composite system exhibiting improved remanant polarization.

KW - Crystallite size

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KW - Nano-pva composite-films

KW - Strain

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Structural analysis of enhanced ferroelectricity in nano-composite films of sodium nitrite in poly-vinyl alcohol matrix fabricated at moderate elevated temperature

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