Phase transformation and photoluminescence of undoped and Eu3+-doped zinc stannate (Zn2SnO4) nanocrystals synthesized by hydrothermal method

  • Nguyen Duy ThienEmail author
  • Luu Manh Quynh
  • Le Van Vu
  • Nguyen Ngoc Long


In this work we report a hydrothermal approach for synthesis of zinc stannate (Zn2SnO4–ZTO) nanocrystals. Structural properties and morphology of the samples were investigated in detail. In particular, our research focused on the effect of hydrothermal duration on the phase composition of ZTO nanocrystals. By combining X-ray diffraction analysis, scanning electron microscopy and selected area energy-dispersive X-ray spectroscopy, a crystalline phase transformation during the hydrothermal process was enlightened. The ZTO nanocrystals were doped with europium ions. The room-temperature emission spectra of the undoped ZTO and Eu3+-doped ZTO nanocrystals were recorded. The emission spectra of the undoped ZTO nanocrystals showed two broad bands related to the lattice defects, while the spectra of Eu3+-doped ZTO nanocrystals exhibited the narrow emission peaks, which were assigned to the radiative intra-configurational f–f transitions of Eu3+ ions.



This work is financially supported by Vietnam National University (the project of QG 18.19).


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Nguyen Duy Thien
    • 1
    Email author
  • Luu Manh Quynh
    • 1
  • Le Van Vu
    • 1
  • Nguyen Ngoc Long
    • 1
  1. 1.Centre for Materials Science, Faculty of PhysicsHanoi University of ScienceHanoiVietnam

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