Skip to main content
placeholder image

Annealing effects on the structural and dielectricproperties of (Nb + In) co-doped rutile TiO2ceramics

Journal Article


Abstract


  • Density functional theory calculations were conducted to investigate the electronic structures of rutile Ti 16 O 32 , Ti 13 Nb 2 InO 32 , and Ti 13 Nb 2 InO 31 systems. High density (Nb + In) co-doped rutile TiO 2 ceramics were successfully prepared by one modified solid state method. XRD, XPS, Raman scattering and FT-IR measurements were performed to investigate the structural properties of the (Nb + In) co-doped rutile TiO 2 ceramics annealed in different atmospheres. The lattice parameters for the (Nb + In) co-doped rutile TiO 2 ceramics were enlarged slightly after they were annealed in air and oxygen. Raman scattering results indicate that the E g modes are quite sensitive to oxygen vacancy in comparison with the other Raman active modes. The ceramics annealed in oxygen at 873 K exhibit the best dielectric performance with giant dielectric permittivity (>14000) and small dielectric loss (<0.2) over the frequency range from 40 Hz to 1 MHz.

Authors


  •   Zhao, Lanling (external author)
  •   Wang, Jun (external author)
  •   Gai, Zhigang (external author)
  •   Li, Jichao (external author)
  •   Liu, Jian (external author)
  •   Wang, Jiyang (external author)
  •   Wang, Chunlei (external author)
  •   Wang, Xiaolin

Publication Date


  • 2019

Citation


  • Zhao, L., Wang, J., Gai, Z., Li, J., Liu, J., Wang, J., Wang, C. & Wang, X. (2019). Annealing effects on the structural and dielectricproperties of (Nb + In) co-doped rutile TiO2ceramics. RSC Advances: an international journal to further the chemical sciences, 9 (15), 8364-8368.

Scopus Eid


  • 2-s2.0-85063002034

Number Of Pages


  • 4

Start Page


  • 8364

End Page


  • 8368

Volume


  • 9

Issue


  • 15

Place Of Publication


  • United Kingdom

Abstract


  • Density functional theory calculations were conducted to investigate the electronic structures of rutile Ti 16 O 32 , Ti 13 Nb 2 InO 32 , and Ti 13 Nb 2 InO 31 systems. High density (Nb + In) co-doped rutile TiO 2 ceramics were successfully prepared by one modified solid state method. XRD, XPS, Raman scattering and FT-IR measurements were performed to investigate the structural properties of the (Nb + In) co-doped rutile TiO 2 ceramics annealed in different atmospheres. The lattice parameters for the (Nb + In) co-doped rutile TiO 2 ceramics were enlarged slightly after they were annealed in air and oxygen. Raman scattering results indicate that the E g modes are quite sensitive to oxygen vacancy in comparison with the other Raman active modes. The ceramics annealed in oxygen at 873 K exhibit the best dielectric performance with giant dielectric permittivity (>14000) and small dielectric loss (<0.2) over the frequency range from 40 Hz to 1 MHz.

Authors


  •   Zhao, Lanling (external author)
  •   Wang, Jun (external author)
  •   Gai, Zhigang (external author)
  •   Li, Jichao (external author)
  •   Liu, Jian (external author)
  •   Wang, Jiyang (external author)
  •   Wang, Chunlei (external author)
  •   Wang, Xiaolin

Publication Date


  • 2019

Citation


  • Zhao, L., Wang, J., Gai, Z., Li, J., Liu, J., Wang, J., Wang, C. & Wang, X. (2019). Annealing effects on the structural and dielectricproperties of (Nb + In) co-doped rutile TiO2ceramics. RSC Advances: an international journal to further the chemical sciences, 9 (15), 8364-8368.

Scopus Eid


  • 2-s2.0-85063002034

Number Of Pages


  • 4

Start Page


  • 8364

End Page


  • 8368

Volume


  • 9

Issue


  • 15

Place Of Publication


  • United Kingdom