Synthesis of LaO0.5F0.5BiS2 nanosheets by ultrasonification

•LaO0.5F0.5BiS2 nanosheets were produced by ultrasonification.•A slightly reddish colloidal suspension was obtained.•Exfoliation can be characterized by breakage of the interaction between Bi–S layers.•Thickness of nanosheets was 2–6nm, which corresponded to 2–4 unit cells. LaO0.5F0.5BiS2 nanosheets...

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Published inJournal of Asian Ceramic Societies Vol. 5; no. 2; pp. 183 - 185
Main Authors Miura, Akira, Ishii, Satoshi, Nagao, Masanori, Matsumoto, Ryo, Takano, Yoshihiko, Watauchi, Satoshi, Tanaka, Isao, Rosero-Navarro, Nataly Carolina, Tadanaga, Kiyoharu
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2017
Taylor & Francis
Taylor & Francis Group
Subjects
Layered compounds
Mixed-anion compounds
Nanosheets
Oxysulfides
Superconductor
Superconductor
Nanosheets
Mixed-anion compounds
Layered compounds
Oxysulfides
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Summary:•LaO0.5F0.5BiS2 nanosheets were produced by ultrasonification.•A slightly reddish colloidal suspension was obtained.•Exfoliation can be characterized by breakage of the interaction between Bi–S layers.•Thickness of nanosheets was 2–6nm, which corresponded to 2–4 unit cells. LaO0.5F0.5BiS2 nanosheets were produced by ultrasonification. A slightly reddish colloidal suspension was obtained by ultrasonification of LaO0.5F0.5BiS2 powder in ethanol. Transmission electron microscope (TEM) images of the dried suspension indicated the nanosheet morphology of LaO0.5F0.5BiS2, and the electron diffraction spots indicated 4-fold symmetry. The thickness of the sheets was 2–6nm, which corresponded to 2–4 unit cells of the c-axis of LaO0.5F0.5BiS2.
ISSN:2187-0764
2187-0764
DOI:10.1016/j.jascer.2017.04.003