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Synthesis of Sr2Nb3O10 nanosheets and their application for growth of thin film using an electrophoretic method

Title
Synthesis of Sr2Nb3O10 nanosheets and their application for growth of thin film using an electrophoretic method
Authors
Lee, Woong-HeeIm, MirKweon, Sang-HyoWoo, Jong-UnNahm, SahnChoi, Ji-WonHwang, Seong-Ju
Ewha Authors
황성주
SCOPUS Author ID
황성주scopus
Issue Date
2017
Journal Title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN
0002-7820JCR Link1551-2916JCR Link
Citation
vol. 100, no. 3, pp. 1098 - 1107
Keywords
dielectric materialspropertieselectrophoretic depositionlayered ceramicsthin films
Publisher
WILEY
Indexed
SCI; SCIE; SCOPUS WOS
Abstract
K(Sr2Nb3)O-10 (KSN) ceramic without the secondary phase was obtained from a KSN + 0.05K(2)O specimen sintered at 1350 degrees C. This ceramic was used as the precursor to synthesize Sr2Nb3O10- (SNO-) nanosheets, because it has a pure KSN phase with a large (002) plane. The SNO- nanosheets were deposited on a Pt/Ti/SiO2/Si substrate using the electrophoresis method at room temperature, and heated at various temperatures to get rid of the organic defects. The crystalline SNO phase without organic defects was formed in film annealed at 600 degrees C. However, when the annealing temperature exceeded 600 degrees C, the Pt electrode became unstable, resulting in degradation of the SNO film. Good electric properties were obtained from the SNO film annealed at 600 degrees C: dielectric constant of 70, dielectric loss of 0.017 at 1.0MHz, leakage current density of 3.5x10(-8)A/cm(2) at 0.2 MV/cm, and a breakdown electric field of 0.25MV/cm.
DOI
10.1111/jace.14685
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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