Paper Title:
Materials of Nanocrystalline Sr1-xBaxBi4Ti4O15 for Piezoelectric Sensor
  Abstract

The nanocrystalline Strontium Barium Bismuth Titanate (SBBT) thin films with structure of Al/TiO2/SBBT/TiO2/RuO2/SiO2/Si were fabricated using sol-gel technique. The source materials are bismuth acetate Bi(CH3COO)2, barium acetate Bi(CH3COO)2, strontium acetate Sr(CH3COO)2 and titanium butoxide (Ti(OC4H9 )4). Different nanostructures of the films were prepared with un-annealed condition as well as after annealing at three different temperatures of 400, 500 and 6000C, in air for 2 minutes. The structure of SBBT thin films have been systematically studied by XRD, AFM, SEM and dielectric constant measurement. For the sensor device measurement, the SBBT thin film pressure sensors were tested by pneumatic loading method at pressure range between 0 to 450 kPa. It was found that the sensing properties of the films were affected by the crystalline nature of the films. It is shown that there is a linear relationship between the crystallization, grains size and dielectric properties with the sensing response of the film towards pressure.

  Info
Periodical
Advanced Materials Research (Volumes 55-57)
Main Theme
Edited by
Tawee Tunkasiri
Pages
253-256
DOI
10.4028/www.scientific.net/AMR.55-57.253
Citation
N. A. A. Manaf, M. M. Salleh, M. Yahaya, "Materials of Nanocrystalline Sr1-xBaxBi4Ti4O15 for Piezoelectric Sensor", Advanced Materials Research, Vols. 55-57, pp. 253-256, 2008
Online since
August 2008
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