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Journal of Materials Science

, Volume 44, Issue 14, pp 3889–3899 | Cite as

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

  • J. Thirumalai
  • R. ChandramohanEmail author
  • S. Valanarasu
  • T. A. Vijayan
  • R. M. Somasundaram
  • T. Mahalingam
  • S. R. Srikumar
Article

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.

Keywords

HRTEM Oxysulfide Semiconductor Nanostructures Electronic Portal Imaging Device Size Dependent Effect 

Notes

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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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • J. Thirumalai
    • 1
  • R. Chandramohan
    • 1
    Email author
  • S. Valanarasu
    • 2
  • T. A. Vijayan
    • 1
  • R. M. Somasundaram
    • 3
  • T. Mahalingam
    • 4
  • S. R. Srikumar
    • 5
  1. 1.Department of PhysicsSree Sevugan Annamalai CollegeDevakottaiIndia
  2. 2.Department of PhysicsAnanda CollegeDevakottaiIndia
  3. 3.Department of ChemistrySree Sevugan Annamalai CollegeDevakottaiIndia
  4. 4.School of PhysicsAlagappa UniversityKaraikudiIndia
  5. 5.Department of PhysicsKalasalingam UniversityKrishnankoilIndia

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