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P. K. JAIN1, D. KUMAR1, A. KUMAR1, D. KAUR1,*
Zinc titanate (ZnTiO3) ceramics were prepared by conventional solid state reaction method using ZnO and TiO2 in a molar ratio of 1:1. Various parameters were optimized in order to achieve single phase ZnTiO3. Here, the effect of sintering temperature has been investigated. It was found that the sample sintered at 800 oC for 12 hour exhibit single hexagonal phase of ZnTiO3. The indirect band gap of samples sintered at different temperature ranging from 700 oC to 1000 oC was calculated from absorption spectra, which reveals that band gap is minimum for single hexagonal ZnTiO3 phase (2.88 eV) as compared to mixed cubic/hexagonal phase (2.91 eV). The frequency dependent dielectric properties of these samples have been studied using impedance analyzer. The behavior of capacitance, loss tangent (tan δ) and dielectric constant (εr) has been studied in the frequency range 1 kHz to 1 MHz. It is observed that the loss tangent and dielectric constant independent at higher frequency range, which is an important property suitable for various applications..
ZnTiO3, Dielectric constant, Sintering temperature, Band gap.
P. K. JAIN, D. KUMAR, A. KUMAR, D. KAUR, Structural, optical and dielectric properties of ZnTiO3 ceramics, Optoelectronics and Advanced Materials - Rapid Communications, 4, 3, March 2010, pp.299-304 (2010).
Submitted at: Jan. 26, 2010
Accepted at: March 12, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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