One-step synthesis of BaTiO3/CaTiO3 core-shell nanocubes by hydrothermal reaction

Ken ichi Mimura; Zheng Liu; Hiroki Itasaka; Yung Chang Lin; Kazu Suenaga; Kazumi Kato

doi:10.1080/21870764.2020.1868081

One-step synthesis of BaTiO₃/CaTiO₃ core-shell nanocubes by hydrothermal reaction

Ken ichi Mimura^*, Zheng Liu, Hiroki Itasaka, Yung Chang Lin, Kazu Suenaga, Kazumi Kato

^*Corresponding author for this work

National Institute of Advanced Industrial Science and Technology

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Novel cube-shaped nanocrystals of BaTiO₃ (BT) surrounded by CaTiO₃ (CT) that can be used for piezo-driven energy harvesters were synthesized using a one-step hydrothermal reaction with surfactant and additives at 250°C for 24 h. The size distribution of the nanocubes (NCs) was narrow, with an approximate average size of 50 ~ 60 nm. The nanocubes had a core-shell configuration, such that the Pbnm structured CT shell was grown on a P4mm structured BT core by sharing corresponding [001] directions. STEM-EDX and EELS indicated that Ba ions did not diffuse into the CT shell region. Piezoelectric hysteresis loops of BT/CT NCs were obtained by piezoresponse force microscopy.

Original language	English
Pages (from-to)	336-342
Number of pages	7
Journal	Journal of Asian Ceramic Societies
Volume	9
Issue number	1
DOIs	https://doi.org/10.1080/21870764.2020.1868081
Publication status	Published - 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of The Korean Ceramic Society and The Ceramic Society of Japan.

ASJC Scopus Subject Areas

Ceramics and Composites

Keywords

core-shell structure
heterointerfaces
Hydrothermal synthesis
nanocube
piezoelectrics

Access to Document

10.1080/21870764.2020.1868081

Cite this

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title = "One-step synthesis of BaTiO3/CaTiO3 core-shell nanocubes by hydrothermal reaction",

abstract = "Novel cube-shaped nanocrystals of BaTiO3 (BT) surrounded by CaTiO3 (CT) that can be used for piezo-driven energy harvesters were synthesized using a one-step hydrothermal reaction with surfactant and additives at 250°C for 24 h. The size distribution of the nanocubes (NCs) was narrow, with an approximate average size of 50 ~ 60 nm. The nanocubes had a core-shell configuration, such that the Pbnm structured CT shell was grown on a P4mm structured BT core by sharing corresponding [001] directions. STEM-EDX and EELS indicated that Ba ions did not diffuse into the CT shell region. Piezoelectric hysteresis loops of BT/CT NCs were obtained by piezoresponse force microscopy.",

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AU - Mimura, Ken ichi

AU - Liu, Zheng

AU - Itasaka, Hiroki

AU - Lin, Yung Chang

AU - Suenaga, Kazu

AU - Kato, Kazumi

PY - 2021

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