Effects of Ca Doping on Structural and Optical Properties of PZT Nanopowders

K. H. Omran; M. Mostafa; M. S. Abd El-sadek; O. M. Hemeda; R. Ubic

doi:10.1016/j.rinp.2020.103580

Effects of Ca Doping on Structural and Optical Properties of PZT Nanopowders

K. H. Omran, M. Mostafa, M. S. Abd El-sadek, O. M. Hemeda, R. Ubic

Micron School of Materials Science and Engineering

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

15 Scopus citations

11 Downloads (Pure)

Abstract

The influence of the addition of calcium ions (Ca ²⁺ ) in the Pb _(1-x) Ca _x Zr _0.52 Ti _0.48 O ₃ system (PCZT) for x = 0.05, 0.10, 0.15, 0.20, and 0.25 on the structural and optical properties was systematically studied. The compositions were synthesized through a polymerized-complex approach based on the Pechini polymeric precursor route. The solubility limit of calcium ions within the PCZT lattice is in between x = 0.10 and x = 0.15, at which a CaTiO ₃ secondary phase is detected. The Goldschmidt tolerance factors, modified tolerance factors, and the effective vacancy sizes were all estimated for the synthesized nanopowders. While the Goldschmidt tolerance factors suggest the formation of a distorted perovskite structure, the values of the modified tolerance factor were extremely close to unity, indicating a strong stable ferroelectric perovskite structure. The optical band gap was found to decrease with calcium concentration to a minimum at x = 0.20 and then slightly increase at x = 0.25.

Original language	American English
Article number	103580
Journal	Results in Physics
Volume	19
DOIs	https://doi.org/10.1016/j.rinp.2020.103580
State	Published - 1 Dec 2020

Keywords

PZT
Pechini method
Rietveld method
band gap
modified tolerance factor
nano PbCaZrTiO3
nano PbCaZrTiO

EGS Disciplines

Materials Science and Engineering

Access to Document

10.1016/j.rinp.2020.103580

Effects of Ca Doping on Structural and Optical Properties of PZTFinal published version, 4.62 MBLicense: Unspecified

Cite this

@article{770dca3995084d8cbec87e502b7934de,

title = "Effects of Ca Doping on Structural and Optical Properties of PZT Nanopowders",

abstract = " The influence of the addition of calcium ions (Ca 2+ ) in the Pb (1-x) Ca x Zr 0.52 Ti 0.48 O 3 system (PCZT) for x = 0.05, 0.10, 0.15, 0.20, and 0.25 on the structural and optical properties was systematically studied. The compositions were synthesized through a polymerized-complex approach based on the Pechini polymeric precursor route. The solubility limit of calcium ions within the PCZT lattice is in between x = 0.10 and x = 0.15, at which a CaTiO 3 secondary phase is detected. The Goldschmidt tolerance factors, modified tolerance factors, and the effective vacancy sizes were all estimated for the synthesized nanopowders. While the Goldschmidt tolerance factors suggest the formation of a distorted perovskite structure, the values of the modified tolerance factor were extremely close to unity, indicating a strong stable ferroelectric perovskite structure. The optical band gap was found to decrease with calcium concentration to a minimum at x = 0.20 and then slightly increase at x = 0.25.",

keywords = "PZT, Pechini method, Rietveld method, band gap, modified tolerance factor, nano PbCaZrTiO3, nano PbCaZrTiO",

author = "Omran, {K. H.} and M. Mostafa and {Abd El-sadek}, {M. S.} and Hemeda, {O. M.} and R. Ubic",

note = "Omran, K. H.; Mostafa, M.; Abd El-sadek, M. S.; Hameda, O. M.; and Ubic, R. (2020). {"}Effects of Ca Doping on Structural and Optical Properties of PZT Nanopowders{"}. Results in Physics, 19, 103580-1 - 103580-11. https://doi.org/10.1016/j.rinp.2020.103580",

year = "2020",

month = dec,

day = "1",

doi = "10.1016/j.rinp.2020.103580",

language = "American English",

volume = "19",

}

TY - JOUR

T1 - Effects of Ca Doping on Structural and Optical Properties of PZT Nanopowders

AU - Omran, K. H.

AU - Mostafa, M.

AU - Abd El-sadek, M. S.

AU - Hemeda, O. M.

AU - Ubic, R.

N1 - Omran, K. H.; Mostafa, M.; Abd El-sadek, M. S.; Hameda, O. M.; and Ubic, R. (2020). "Effects of Ca Doping on Structural and Optical Properties of PZT Nanopowders". Results in Physics, 19, 103580-1 - 103580-11. https://doi.org/10.1016/j.rinp.2020.103580

PY - 2020/12/1

Y1 - 2020/12/1

N2 - The influence of the addition of calcium ions (Ca 2+ ) in the Pb (1-x) Ca x Zr 0.52 Ti 0.48 O 3 system (PCZT) for x = 0.05, 0.10, 0.15, 0.20, and 0.25 on the structural and optical properties was systematically studied. The compositions were synthesized through a polymerized-complex approach based on the Pechini polymeric precursor route. The solubility limit of calcium ions within the PCZT lattice is in between x = 0.10 and x = 0.15, at which a CaTiO 3 secondary phase is detected. The Goldschmidt tolerance factors, modified tolerance factors, and the effective vacancy sizes were all estimated for the synthesized nanopowders. While the Goldschmidt tolerance factors suggest the formation of a distorted perovskite structure, the values of the modified tolerance factor were extremely close to unity, indicating a strong stable ferroelectric perovskite structure. The optical band gap was found to decrease with calcium concentration to a minimum at x = 0.20 and then slightly increase at x = 0.25.

AB - The influence of the addition of calcium ions (Ca 2+ ) in the Pb (1-x) Ca x Zr 0.52 Ti 0.48 O 3 system (PCZT) for x = 0.05, 0.10, 0.15, 0.20, and 0.25 on the structural and optical properties was systematically studied. The compositions were synthesized through a polymerized-complex approach based on the Pechini polymeric precursor route. The solubility limit of calcium ions within the PCZT lattice is in between x = 0.10 and x = 0.15, at which a CaTiO 3 secondary phase is detected. The Goldschmidt tolerance factors, modified tolerance factors, and the effective vacancy sizes were all estimated for the synthesized nanopowders. While the Goldschmidt tolerance factors suggest the formation of a distorted perovskite structure, the values of the modified tolerance factor were extremely close to unity, indicating a strong stable ferroelectric perovskite structure. The optical band gap was found to decrease with calcium concentration to a minimum at x = 0.20 and then slightly increase at x = 0.25.

KW - PZT

KW - Pechini method

KW - Rietveld method

KW - band gap

KW - modified tolerance factor

KW - nano PbCaZrTiO3

KW - nano PbCaZrTiO

UR - https://scholarworks.boisestate.edu/mse_facpubs/477

UR - http://www.scopus.com/inward/record.url?scp=85095933352&partnerID=8YFLogxK

U2 - 10.1016/j.rinp.2020.103580

DO - 10.1016/j.rinp.2020.103580

M3 - Article

VL - 19

JO - Results in Physics

JF - Results in Physics

M1 - 103580

ER -

Effects of Ca Doping on Structural and Optical Properties of PZT Nanopowders

Abstract

Keywords

EGS Disciplines

Access to Document

Other files and links

Fingerprint

Cite this