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Issue 6, 2019
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From gallium-based supramolecular square nanoplates to γ-Ga2O3 layer nanosheets

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Abstract

In this work, a facile grinding method for preparation of supramolecular square nanoplates formed by β-cyclodextrin and gallium acetylacetonate was developed. The nanoplates exhibited a highly monodispersed distribution nature at room temperature, and were self-assembled to form supramolecular layer nanosheets at 353 K. Heating to higher temperatures such as 673 K led to the decomposition of the layer nanosheets into γ-Ga2O3 layer nanosheets. The γ-Ga2O3 nanosheets (thickness of about 15 nm) with a very high specific surface area (93.9 m2 g−1) show an improved solar-blind detection performance (e.g., light–dark ratio, 1.64 × 104) compared to devices based on 3D structured γ-Ga2O3. We believe that the grinding-heating-strategy provides a convenient and efficient route to synthesize high-quality supramolecular nanocrystals and inorganic nanomaterials.

Graphical abstract: From gallium-based supramolecular square nanoplates to γ-Ga2O3 layer nanosheets

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Supplementary files

Article information


Submitted
07 Dec 2018
Accepted
17 Jan 2019
First published
23 Jan 2019

J. Mater. Chem. C, 2019,7, 1477-1483
Article type
Communication

From gallium-based supramolecular square nanoplates to γ-Ga2O3 layer nanosheets

Y. Q. Wang, L. X. Song, Y. Teng, F. Wang, W. P. Wang, M. M. Ruan, Z. Yang and Z. Y. Xu, J. Mater. Chem. C, 2019, 7, 1477
DOI: 10.1039/C8TC06187D

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