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Issue 12, 2011
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Gelatin-mediated hydrothermal synthesis of apple-like LaCO3OH hierarchical nanostructures and tunable white-light emission

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Abstract

A fabrication of uniform apple-like LaCO3OH hierarchical nanostructures was achieved by a facile hydrothermal route using gelatin as the reactant and structure-directing agent. The hierarchical nanostructures with diameters of 2–5 μm are built from numerous nanoplatelets with thicknesses of 10–20 nm and lengths of 30–80 nm. Influential factors such as reaction time, reaction temperature, dosage of gelatin and potassium hydroxide were systematically investigated. A dipole-field-driven process was suggested for the formation of the apple-like LaCO3OH hierarchical nanostructures. Strong emission centring at 432 nm was realized in the apple-like LaCO3OH hierarchical nanostructures on excitation with 365 nm ultraviolet light. It turns out that it is easy to tune the luminescent characteristics of the LaCO3OH hierarchical nanostructures in a wide spectral range by simply varying excitation lines or doping concentration of Eu3+ and Tb3+. Particularly, white light emission can be obtained in the Eu3+ and Tb3+ codoped LaCO3OH hierarchical nanostructures on excitation in a wide ultraviolet band.

Graphical abstract: Gelatin-mediated hydrothermal synthesis of apple-like LaCO3OH hierarchical nanostructures and tunable white-light emission

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Publication details

The article was received on 06 Jan 2011, accepted on 28 Mar 2011 and first published on 21 Apr 2011


Article type: Paper
DOI: 10.1039/C1CE00012H
Citation: CrystEngComm, 2011,13, 4151-4160
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    Gelatin-mediated hydrothermal synthesis of apple-like LaCO3OH hierarchical nanostructures and tunable white-light emission

    S. Zhong, L. Zhang, J. Jiang, Y. Lv, R. Xu, A. Xu and S. Wang, CrystEngComm, 2011, 13, 4151
    DOI: 10.1039/C1CE00012H

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