Bibliographic Details
| Title: |
Structure, dielectric, ferroelectric, and optical properties of (1−x)Ba(Zr0.2Ti0.8)O3 −x(Ba0.7Ca0.3)TiO3 thin films prepared by sol–gel method |
| Authors: |
Lin, Yanting, Wu, Guangheng, Qin, Ni, Bao, Dinghua stsbdh@mail.sysu.edu.cn |
| Source: |
Thin Solid Films. Jan2012, Vol. 520 Issue 7, p2800-2804. 5p. |
| Subjects: |
Optical properties of metallic films, Dielectric loss, Ferroelectric thin films, Chemical structure, Perovskite, Sol-gel processes, Temperature effect, Permittivity |
| Abstract: |
Abstract: We report high dielectric tunabilities of (1−x)Ba(Zr0.2Ti0.8)O3 −x(Ba0.7Ca0.3)TiO3 (BZT–xBCT) (x=0.15, 0.30, 0.40, 0.45, 0.50, and 0.55) thin films prepared by a sol–gel method. The films show a pure perovskite structure with random orientation. They have moderate dielectric constant ranging from 350 to 500 and low dielectric loss near 3.0% at 1kHz with 0V bias at room temperature. The dielectric tunability of the BZT–0.55BCT thin films is up to 65% at 400kV/cm and 100kHz. The films exhibit a high optical transmission in the range of 420nm–1500nm. Their optical band gap energies are about 3.90eV. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
