ISSN:
1432-0630
Keywords:
PACS: 77.80.Dj; 81.20.Fw; 77.84.Dy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract. Barium strontium titanate (Ba0.8Sr0.2TiO3) films with good ferroelectricity have been obtained by a developed sol-gel processing, using a 0.05-M spin-on solution. X-ray diffraction and Raman spectroscopy investigations showed that the Ba0.8Sr0.2TiO3 film exhibited a tetragonal structure at room temperature. Field-emission scanning electron microscopy measurements revealed that large columnar grains with the size of 100 to 200 nm in the film were formed from the highly dilute spin-on solution with layer-by-layer homoepitaxy. Electrical measurements for the prepared Ba0.8Sr0.2TiO3 film showed a remnant polarization of 3.5 μC/cm2, a coercive field of 53 kV/cm, two distinctive phase transitions, lower dissipation factor, and good insulating properties. These results indicate the sol-gel-derived Ba0.8Sr0.2TiO3 film from a 0.05-M solution is suitable for uncooled infrared detector applications.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s003390051058
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