Structural and electrical properties of Sr2NaNb4O13 thin film grown by electrophoretic method using nanosheets synthesized from K(Sr2Na)Nb4O13 compound

Mir Im, Sang Hyo Kweon, Dong Ha Kim, Woong Hee Lee, Sahn Nahm, Ji Won Choi, Seong Ju Hwang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Sr2NaNb4O13 (SNNO) nanosheets were exfoliated from the K(Sr2Na)Nb4O13 compound that was synthesized at 1200 °C. The SNNO nanosheets were deposited on a Pt/Ti/SiO2/Si substrate at room temperature by the electrophoretic method. Annealing was conducted at various temperatures to remove organic defects in the SNNO film. A crystalline SNNO phase without organic defects was formed in the film annealed at 500 °C. However, a SrNb2O6 secondary phase was formed in the films annealed above 600 °C, probably due to the evaporation of Na2O. The SNNO thin film annealed at 500 °C showed a dielectric constant of 74 at 1.0 MHz with a dielectric loss of 2.2%. This film also exhibited a low leakage current density of 9.0 × 10−8 A/cm2 at 0.6 MV/cm with a high breakdown electric field of 0.72 MV/cm.

Original languageEnglish
Pages (from-to)2407-2413
Number of pages7
JournalJournal of the European Ceramic Society
Volume37
Issue number6
DOIs
Publication statusPublished - 2017 Jun 1

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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