Structural and dielectric properties of CaCu₃Ti₄O₁₂ synthesized by sol–gel method

References

• S. Lim et al., Dielectric functions and optical bandgaps of high-K dielectrics for metal-oxide-semiconductor field-effect transistors by far ultraviolet spectroscopic ellipsometry, J. Appl. Phys. 91 (7), 4500 (2002). DOI: 10.1063/1.1456246.
   Web of Science ®Google Scholar
• R. Cava, W. Peck, and J. Krajewski, Enhancement of the dielectric constant of Ta2O5 through substitution with TiO2, Nature 377 (6546), 215 (1995). DOI: 10.1038/377215a0.
   Web of Science ®Google Scholar
• S. Jin et al., Synthesis of CaCu3Ti4O12 ceramic via a sol-gel method, Mater. Lett. 61 (6), 1404 (2007). DOI: 10.1016/j.matlet.2006.07.041.
   Web of Science ®Google Scholar
• S. O. Kasap, Principles of Electronic Materials and Devices, 4th ed. New York, NY: McGraw-Hill; 2006.
   Google Scholar
• L. Ni, and X. M. Chen, Dielectric relaxations and formation mechanism of giant dielectric constant step in CaCu3Ti4O12CaCu3Ti4O12 ceramics, Appl. Phys. Lett. 91, 122905 (2007). DOI: 10.1063/1.2785128.
   Web of Science ®Google Scholar
• B. Yadav et al., Impact of defect migration on electrical and dielectric properties in molten salt synthesized CaCu3Ti4O12 and customizing the properties by compositional engineering with Mg doping, Mater. Chem. Phys. 281, 125893 (2022). DOI: 10.1016/j.matchemphys.2022.125893.
   Web of Science ®Google Scholar
• H. Yu et al., Enhanced electrical and photoluminescence properties of BiSbO4-doped CaCu3Ti4O12 ceramics by modifying grain boundary response, Ceram. Int. 48 (16), 23428 (2022). DOI: 10.1016/j.ceramint.2022.04.334.
   Web of Science ®Google Scholar
• T. G. Evangeline, A. R. Annamalai, and P. Ctibor, Dielectric response and low dielectric loss of gadolinium-doped CaCu3Ti4O12 ceramics processed through conventional and microwave sintering, J. Electron. Mater. 52 (6), 3848 (2023). DOI: 10.1007/s11664-023-10341-w.
   Web of Science ®Google Scholar
• D. C. Sinclair et al., CaCu3Ti4O12: One-step internal barrier layer capacitor, Appl. Phys. Lett. 80 (12), 2153 (2002). DOI: 10.1063/1.1463211.
   Web of Science ®Google Scholar
• J. H. Clark et al., Visible light photo-oxidation of model pollutants using CaCu3Ti4O12: an experimental and theoretical study of optical properties, electronic structure, and selectivity, J. Am. Chem. Soc. 133 (4), 1016 (2011). DOI: 10.1021/ja1090832.
   PubMed Web of Science ®Google Scholar
• S. Ke, H. Huang, and H. Fan, Relaxor behavior in CaCu3Ti4O12 ceramics, Appl. Phys. Lett. 89 (18), 182904 (2006). DOI: 10.1063/1.2374682.
   Web of Science ®Google Scholar
• P. Jha, P. Arora, and A. K. Ganguli, Polymeric citrate precursor route to the synthesis of the high dielectric constant oxide, CaCu3Ti4O12, Mater. Lett. 57 (16–17), 2443 (2003). DOI: 10.1016/S0167-577X(02)01250-8.
   Web of Science ®Google Scholar
• S. Kawrani et al., From synthesis to applications: copper calcium titanate (CCTO) and its magnetic and photocatalytic properties, ChemistryOpen. 8 (7), 922 (2019). DOI: 10.1002/open.201900133.
   PubMed Web of Science ®Google Scholar
• M. A. Subramanian et al., High dielectric constant in ACu3Ti4O12 and ACu3Ti3FeO12 phases, J. Solid State Chem. 151 (2), 323 (2000). DOI: 10.1006/jssc.2000.8703.
   Web of Science ®Google Scholar
• N. Tripathy et al., Fabrication of high-k dielectric calcium copper titanate (CCTO) target by solid state route, IOP Conf. Ser.: Mater. Sci. Eng. 115, 012022 (2016). DOI: 10.1088/1757-899X/115/1/012022.
   Google Scholar
• D. L. Sun et al., Structure, properties, and impedance spectroscopy of CaCu3Ti4O12 ceramics prepared by sol–gel Process, J. Amer. Ceram. Soc. 91 (1), 169 (2008). DOI: 10.1111/j.1551-2916.2007.02096.x.
   Web of Science ®Google Scholar
• K. Djafar et al., Dielectric properties of nanocrystalline CaCu3Ti4O12 (CCTO) ceramics fabricated from Algerian limestone raw material, Mater. Chem. Phys. 301, 127558 (2023). DOI: 10.1016/j.matchemphys.2023.127558.
   Web of Science ®Google Scholar
• W. Li et al., Large reduction of dielectric losses of CaCu3Ti4O12 ceramics via air quenching, Ceram. Int. 43 (8), 6618 (2017). DOI: 10.1016/j.ceramint.2017.02.029.
   Web of Science ®Google Scholar
• C. Homes et al., Charge transfer in the high dielectric constant materials CaCu3Ti4O12 and CdCu3Ti4O12, Phys. Rev. B 67 (9), 092106 (2003). DOI: 10.1103/PhysRevB.67.092106.
   Web of Science ®Google Scholar
• S. K. Parida et al., Structural, dielectric, electrical, and optical properties of the Ca3CuTi4O12 ceramic, Phase Trans. 95 (12), 865 (2022). DOI: 10.1080/01411594.2022.2133707.
   Web of Science ®Google Scholar
• Y. Guo, J. Tan, and J. Zhao, Influence of CTO additives on microstructure and electrical properties of CCTO ceramics, Mater. Chem. Phys. 278, 125659 (2022). DOI: 10.1016/j.matchemphys.2021.125659.
   Web of Science ®Google Scholar
• N. Kumari et al., Study of dielectric properties of CaCu3Ti4O12 synthesized via different routes: Effect of sintering temperature, Ceram. Int. 49 (2), 2549 (2023). DOI: 10.1016/j.ceramint.2022.09.234.
   Web of Science ®Google Scholar
• A. Pandey et al., Synthesis, morphological and optical properties of hyderothermally synthesized Bi and Mnco-doped Cu2ZnSnS4 (CZTS), Mater. Today Proceed 82, 85 (2023). DOI: 10.1016/j.matpr.2022.11.407.
   Google Scholar
• P. Yadav et al., Rietveld refinement, dielectric, magneto-dielectric effect and optical properties of (Ca/Hf) co-doped bismuth ferrite, Mater. Today Proceed 82, 227 (2023). DOI: 10.1016/j.matpr.2023.01.121.
   Google Scholar
• A. Sharma et al., Structural, electrical and optical properties of Ca0.5Sr0.5SnO3 nanoparticle prepared by sol-gel method, Mater. Today Proceed 82, 308 (2023). DOI: 10.1016/j.matpr.2023.02.007.
   Google Scholar
• L. Singh et al., Comparative dielectric studies of nanostructured BaTiO3, CaCu3Ti4O12 and 0.5BaTiO3⋅0.5CaCu3Ti4O12 nano-composites synthesized by modified sol–gel and solid state methods, Mater. Charact. 96, 54 (2014). DOI: 10.1016/j.matchar.2014.07.0191044-5803.
   Web of Science ®Google Scholar
• H. Tang et al., Synthesis of calcium copper titanate (CaCu3Ti4O12) nanowires with insulating SiO2 barrier for low loss high dielectric constant nanocomposites, Nano Energy. 17, 302 (2015). DOI: 10.1016/j.nanoen.2015.09.002.
   Web of Science ®Google Scholar
• K. Parida, and R. N. P. Choudhary, Structural, electrical, optical and magneto-electric characteristics of chemically synthesized CaCu3Ti4O12 dielectric ceramics, Mater. Res. Express. 4 (7), 076302 (2017). DOI: 10.1088/2053-1591/aa76cd.
   Web of Science ®Google Scholar
• T. G. Evangeline, and A. R. Annamalai, Influence of heating modes on the microstructural and dielectric properties of calcium copper titanium oxide (CaCu3Ti4O12/CCTO) using conventional and microwave sintering, J Mater Sci: Mater Electron. 33 (8), 5806 (2022). DOI: 10.1007/s10854-022-07764-2.
   Web of Science ®Google Scholar
• B. Khan et al., Structural, dielectric, magnetic and magneto-dielectric properties of (1 2 x)BiFeO3–(x)CaTiO3 composites, J Mater Sci: Mater Electron 32 (13), 18012 (2021). DOI: 10.1007/s10854-021-06344-0.
   Web of Science ®Google Scholar
• A. Smith et al., An anion substitution route to low loss colossal dielectric CaCu3Ti4O12, J. Solid State Chem. 182 (2), 409 (2009). DOI: 10.1016/j.jssc.2008.10.037.
   Web of Science ®Google Scholar
• S. M. Mashkani et al., Synthesis, characterization, and morphological control of CaCu3Ti4O12 through modify sol–gel method, J Mater Sci: Mater Electron. 26, 6086 (2015). DOI: 10.1007/s10854-015-3186-x.
   Web of Science ®Google Scholar
• J. L. Zhang et al., Dielectric dispersion of CaCu3Ti4O12 ceramics at high temperatures, Appl. Phys. Lett. 87 (14), 142901 (2005). DOI: 10.1063/1.2077864.
   Web of Science ®Google Scholar
• P. K. Patel, and K. L. Yadav, Extrinsic mechanism for colossal dielectric constant in CaCu3Ti4O12 ceramics evidenced by nanodomain, Mater. Res. Express. 1 (1), 015037 (2014). DOI: 10.1088/2053-1591/1/1/015037.
   Web of Science ®Google Scholar
• M. Ahmadipour, M. F. Ain, and Z. A. Ahmad, Effects of annealing temperature on the structural, morphology, optical properties and resistivity of sputtered CCTO thin film, J Mater Sci: Mater Electron. 28 (17), 12458 (2017). DOI: 10.1007/s10854-017-7067-3.
   Web of Science ®Google Scholar
• R. Biswal et al., Synthesis, dielectric and optical properties of carboxyl functionalized FeFe2O4 hybrid nanocomposite (CFFHN), Mater. Today: Proc. 82, 255 (2023). DOI: 10.1016/j.matpr.2023.01.183.
   Google Scholar
• A. O. Turky et al., Tuning optical and dielectric properties of calcium copper titanate CaxCu3-xTi4O12 nanopowders, RSC Adv. 5 (24), 18767 (2015). DOI: 10.1039/C4RA15222K.
   Web of Science ®Google Scholar