Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 528, Issue -, Pages 16-19Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2012.02.125
Keywords
Ceramics; Thin films; Sol-gel processes; Optical properties
Categories
Funding
- MHRD
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Optical, magnetocapacitance and dielectric properties of different composite films of BiFeO3-poly (vinylidene-fluoride) (with concentration of BiFeO3; 70, 60, 50 and 40 wt%) are reported here for first time. The grain size was observed to be similar to 50 nm by using atomic force microscopy. A peak in refractive index appears at similar to 455 nm, which is found to be shifting towards lower wavelengths, while simultaneously the value of the optical energy band gap is found to increase with an increase in the concentration of PVDF in the composite. It was observed that PVDF, which works as matrix, increases the magnetocapacitance. The magnetocapacitance (MC) of BFO60 (BiFeO3; 60 wt%) was found higher than Nb doped BiFeO3, which may be useful for device applications. (C) 2012 Elsevier B.V. All rights reserved.
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