Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1621881 | Journal of Alloys and Compounds | 2009 | 6 Pages |
Abstract
Pure BiFeO3 (BFO) and Nb-doped (BFN) thin films were fabricated by the soft chemical method. The films were polycrystalline when deposited on Pt/Ti/SiO2/Si substrate and annealed at 500 °C for 2 h. X-ray diffraction analysis revealed that the film was fully crystallized. The grain size decreased in the BFN films due the suppression of oxygen vacancy concentration in the BFO lattice. The Nb dopant is effective in improving electrical properties of BFO films. With increase niobium content we obtained thin films free of fatigue up to 108 cycles.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
A.Z. Simões, R.F. Pianno, E.C. Aguiar, E. Longo, J.A. Varela,