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Shape-selective synthesis and opto-electronic properties of Eu3+-doped gadolinium oxysulfide nanostructures

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An Erratum to this article was published on 01 August 2009

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Abstract

A simple and facile hydrothermal route has been demonstrated for the shape-selective preparation of highly crystalline Gd2O2S:Eu3+ nanostructures, such as nanocrystals/nanoplates, nanosheets, nanobelts, nanotubes, nanorods, and nanowires are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), photoluminescence (PL) techniques. The as-prepared samples are characterized using X-ray photoelectron spectra (XPS), to investigate the elementary states on the surfaces. The concentration of precursor chemicals, pH, the reaction time, and the temperature are important factors in the morphological control of Gd2O2S:Eu3+ nanostructures. The adjustment of these parameters can lead to an obvious shape evolution of products. The origin and nature of the opto-electronic transitions were observed using opto-impedance measurements.

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Acknowledgements

One of the authors J. Thirumalai wishes to thank the Director of Collegiate Council, Chennai for providing fellowship and gratefully thank NIIST (CSIR), Trivandrum, IGCAR, Kalpakkam, IIT–Bombay, Mumbai, and IICT (CSIR), Hyderabad for extending instrumentation facilities.

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Authors and Affiliations

  1. Department of Physics, Sree Sevugan Annamalai College, Devakottai, 630 303, Tamil Nadu, India

    J. Thirumalai, R. Chandramohan & T. A. Vijayan

  2. Department of Physics, Ananda College, Devakottai, 630 303, Tamil Nadu, India

    S. Valanarasu

  3. Department of Chemistry, Sree Sevugan Annamalai College, Devakottai, 630 303, Tamil Nadu, India

    R. M. Somasundaram

  4. School of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India

    T. Mahalingam

  5. Department of Physics, Kalasalingam University, Krishnankoil, 626 190, Tamil Nadu, India

    S. R. Srikumar

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  1. J. Thirumalai
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  2. R. Chandramohan
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  3. S. Valanarasu
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  4. T. A. Vijayan
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  5. R. M. Somasundaram
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  6. T. Mahalingam
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  7. S. R. Srikumar
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Correspondence to R. Chandramohan.

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Thirumalai, J., Chandramohan, R., Valanarasu, S. et al. Shape-selective synthesis and opto-electronic properties of Eu3+-doped gadolinium oxysulfide nanostructures. J Mater Sci 44, 3889–3899 (2009). https://doi.org/10.1007/s10853-009-3531-7

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  • DOI: https://doi.org/10.1007/s10853-009-3531-7

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