Abstract
A crystalline (Na0.5K0.5)NbO3 (NKN) phase was formed for a film grown at 600°C, but a K5.75Nb 10.85O30 (KN) second phase was also observed in this film. Formation of the KN phase was due to the evaporation of Na2O. A homogeneous NKN phase was developed in the film grown at 300°C and annealed at 800°C under a Na2O atmosphere. This film exhibited the following good electric and dielectric properties: a high dielectric constant of 237.4 with a dissipation factor of 0.93% at 100 kHz, a low leakage current density of 1.0 × 10-8 A/cm2 at 0.1 MV/cm 2, and the high Pr and d33 values of 21.1 μC/cm2 and 64.5 pm/V, respectively.
Original language | English |
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Pages (from-to) | 1970-1973 |
Number of pages | 4 |
Journal | Journal of the American Ceramic Society |
Volume | 94 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2011 Jul |
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry