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Title: Enhanced self-repairing capability of sol-gel derived SrTiO{sub 3}/nano Al{sub 2}O{sub 3} composite films

Abstract

SrTiO{sub 3}/nano Al{sub 2}O{sub 3} inorganic nanocomposites were prepared by using a conventional sol-gel spin coating process. For comparison, SrTiO{sub 3} films doped by equivalent amount of sol-Al{sub 2}O{sub 3} have also been investigated. Aluminum deposited by using vacuum evaporation was used as the top electrode. The nanocomposites exhibited a significantly enhanced dielectric strength of 506.9 MV/m, which was increased by 97.4% as compared with the SrTiO{sub 3} films doped with sol-Al{sub 2}O{sub 3}. The leakage current maintained of the same order of microampere until the ultimate breakdown of the nanocomposites. The excellent electrical performances are ascribed to the anodic oxidation reaction in origin, which can repair the internal and/or surface defects of the films.

Authors:
; ; ; ;  [1]
  1. Functional Materials Research Laboratory, School of Materials Science and Engineering, Tongji University, Shanghai 201804 (China)
Publication Date:
OSTI Identifier:
22590501
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 109; Journal Issue: 9; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM; ALUMINIUM OXIDES; DIELECTRIC MATERIALS; DOPED MATERIALS; FILMS; LEAKAGE CURRENT; NANOCOMPOSITES; OXIDATION; REPAIR; SOL-GEL PROCESS; SPIN-ON COATING; STRONTIUM TITANATES; VACUUM EVAPORATION

Citation Formats

Yao, Manwen, E-mail: yaomw@tongji.edu.cn, Peng, Yong, Xiao, Ruihua, Li, Qiuxia, and Yao, Xi. Enhanced self-repairing capability of sol-gel derived SrTiO{sub 3}/nano Al{sub 2}O{sub 3} composite films. United States: N. p., 2016. Web. doi:10.1063/1.4962127.
Yao, Manwen, E-mail: yaomw@tongji.edu.cn, Peng, Yong, Xiao, Ruihua, Li, Qiuxia, & Yao, Xi. Enhanced self-repairing capability of sol-gel derived SrTiO{sub 3}/nano Al{sub 2}O{sub 3} composite films. United States. doi:10.1063/1.4962127.
Yao, Manwen, E-mail: yaomw@tongji.edu.cn, Peng, Yong, Xiao, Ruihua, Li, Qiuxia, and Yao, Xi. 2016. "Enhanced self-repairing capability of sol-gel derived SrTiO{sub 3}/nano Al{sub 2}O{sub 3} composite films". United States. doi:10.1063/1.4962127.
@article{osti_22590501,
title = {Enhanced self-repairing capability of sol-gel derived SrTiO{sub 3}/nano Al{sub 2}O{sub 3} composite films},
author = {Yao, Manwen, E-mail: yaomw@tongji.edu.cn and Peng, Yong and Xiao, Ruihua and Li, Qiuxia and Yao, Xi},
abstractNote = {SrTiO{sub 3}/nano Al{sub 2}O{sub 3} inorganic nanocomposites were prepared by using a conventional sol-gel spin coating process. For comparison, SrTiO{sub 3} films doped by equivalent amount of sol-Al{sub 2}O{sub 3} have also been investigated. Aluminum deposited by using vacuum evaporation was used as the top electrode. The nanocomposites exhibited a significantly enhanced dielectric strength of 506.9 MV/m, which was increased by 97.4% as compared with the SrTiO{sub 3} films doped with sol-Al{sub 2}O{sub 3}. The leakage current maintained of the same order of microampere until the ultimate breakdown of the nanocomposites. The excellent electrical performances are ascribed to the anodic oxidation reaction in origin, which can repair the internal and/or surface defects of the films.},
doi = {10.1063/1.4962127},
journal = {Applied Physics Letters},
number = 9,
volume = 109,
place = {United States},
year = 2016,
month = 8
}
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