Publication: Intrinsic Enhancement of Permittivity with Ultralow Dielectric Loss in Donor-Acceptor Co-Doped Rutile TiO2 Ceramics
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Issued Date
2021
Resource Type
Language
eng
File Type
application/pdf
ISSN
10584587
Other identifier(s)
2-s2.0-85122090618
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
Integrated Ferroelectrics. Vol 223, No.1 (2021), p.152-161
Suggested Citation
Pulphol P., Pongampai S., Charoonsuk T., Vittayakorn W., Muanghua R., Vittayakorn N. Intrinsic Enhancement of Permittivity with Ultralow Dielectric Loss in Donor-Acceptor Co-Doped Rutile TiO2 Ceramics. Integrated Ferroelectrics. Vol 223, No.1 (2021), p.152-161. doi:10.1080/10584587.2021.1964294 Retrieved from: https://hdl.handle.net/20.500.14740/7936
Abstract
The immense potential of colossal dielectric materials for use in high-energy-density storage applications has driven much recent development and research. The discovering of such dielectric materials with the required high permittivity and low dielectric loss is still a highly challenging. Herein, the donor-acceptor co-doped TiO2 has been developed based on (Mg0.5W0.5) x Ti1-x O2, (In0.5W0.5) x Ti1-x O2 and (Ni0.5Nb0.5) x Ti1-x O2; where x = 0.005–0.01, that manifests high permittivity (>104). The resulted permittivity attains the quadruple than that of pure TiO2 ceramic with low dielectric loss of ∼0.02 over a broad temperature range. This performance is corresponded to the electron-pinned defect-dipoles, providing the extra dielectric response to those of rutile TiO2 host ceramics. This research offers the way to develop functional colossal-dielectric materials by engineering complex defects into the bulk that will help for further discovery of promising new dielectric materials in future. © 2021 Taylor & Francis Group, LLC.
Subject(s)
Binary alloys
Defects
Dielectric devices
Dielectric losses
High-k dielectric
Oxide minerals
Permittivity
Co-doped
Colossal dielectrics
Colossal permittivity
Dielectric ceramic
Donor/acceptor
Energy-density storage
Higher energy density
Low dielectric loss
Rutile TiO 2
Ultra-low dielectric
Titanium dioxide
Defects
Dielectric devices
Dielectric losses
High-k dielectric
Oxide minerals
Permittivity
Co-doped
Colossal dielectrics
Colossal permittivity
Dielectric ceramic
Donor/acceptor
Energy-density storage
Higher energy density
Low dielectric loss
Rutile TiO 2
Ultra-low dielectric
Titanium dioxide