Fabrication of dielectric nanocubes in ordered structure by capillary force assisted self-assembly method and their piezoresponse properties

Ken Ichi Mimura, Feng Dang, Kazumi Kato, Hiroaki Imai, Satoshi Wada, Hajime Haneda, Makoto Kuwabara

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Ordered structures of barium titanate (BT) nanocubes, strontium titanate (ST) nanocubes and BT/ST nanocubes mixture were directly fabricated on Si and Pt-coated Si substrates using a capillary force assisted assembly method. The morphology of self-assembled structures was observed using field emission scanning electron microscopy (FE-SEM) and scanning probe microscopy (SPM). It was revealed that nanocubes were arranged with various degrees of ordering to develop multilayer and monolayer regions at the surface of substrates. The elemental mapping of the structure consisting of the nanocubes mixture was also investigated by transmission electron microscopy (TEM) with an energy dispersive X-ray spectroscopy (EDX). It was revealed that BT and ST nanocubes coexisted homogeneously in the structure and had possibility to be arranged in order to each other. The piezoresponse properties obtained by scanning probe microscopy (SPM) indicated that the hetero-interface between BT and ST nanocubes would introduce anomaly in piezoelectric properties.

Original languageEnglish
Pages (from-to)3853-3861
Number of pages9
JournalJournal of Nanoscience and Nanotechnology
Volume12
Issue number5
DOIs
Publication statusPublished - 2012

Fingerprint

Barium strontium titanate
Scanning probe microscopy
Barium titanate
Barium
Strontium
strontium
Self assembly
barium
self assembly
Scanning Probe Microscopy
Fabrication
fabrication
Substrates
Field emission
Monolayers
Multilayers
X-Ray Emission Spectrometry
Transmission electron microscopy
microscopy
Scanning electron microscopy

Keywords

  • Barium Titanate
  • Nanocubes
  • Piezo-Response Force Microscopy
  • Self-Assembly
  • Strontium Titanate

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

Cite this

Fabrication of dielectric nanocubes in ordered structure by capillary force assisted self-assembly method and their piezoresponse properties. / Mimura, Ken Ichi; Dang, Feng; Kato, Kazumi; Imai, Hiroaki; Wada, Satoshi; Haneda, Hajime; Kuwabara, Makoto.

In: Journal of Nanoscience and Nanotechnology, Vol. 12, No. 5, 2012, p. 3853-3861.

Research output: Contribution to journalArticle

Mimura, Ken Ichi ; Dang, Feng ; Kato, Kazumi ; Imai, Hiroaki ; Wada, Satoshi ; Haneda, Hajime ; Kuwabara, Makoto. / Fabrication of dielectric nanocubes in ordered structure by capillary force assisted self-assembly method and their piezoresponse properties. In: Journal of Nanoscience and Nanotechnology. 2012 ; Vol. 12, No. 5. pp. 3853-3861.
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AU - Imai, Hiroaki

AU - Wada, Satoshi

AU - Haneda, Hajime

AU - Kuwabara, Makoto

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AB - Ordered structures of barium titanate (BT) nanocubes, strontium titanate (ST) nanocubes and BT/ST nanocubes mixture were directly fabricated on Si and Pt-coated Si substrates using a capillary force assisted assembly method. The morphology of self-assembled structures was observed using field emission scanning electron microscopy (FE-SEM) and scanning probe microscopy (SPM). It was revealed that nanocubes were arranged with various degrees of ordering to develop multilayer and monolayer regions at the surface of substrates. The elemental mapping of the structure consisting of the nanocubes mixture was also investigated by transmission electron microscopy (TEM) with an energy dispersive X-ray spectroscopy (EDX). It was revealed that BT and ST nanocubes coexisted homogeneously in the structure and had possibility to be arranged in order to each other. The piezoresponse properties obtained by scanning probe microscopy (SPM) indicated that the hetero-interface between BT and ST nanocubes would introduce anomaly in piezoelectric properties.

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