Journal of Electronic Materials

, Volume 46, Issue 6, pp 3341–3344 | Cite as

Influence of Hydrothermal Temperature on the Optical Properties of Er-Doped SnO2 Nanoparticles

  • Pham  Van Tuan
  • Le Trung Hieu
  • La Quynh Nga
  • Ngo Ngoc Ha
  • Nguyen Duc Dung
  • Tran Ngoc KhiemEmail author


This work reports on crystallization and optical properties of SnO2:Er3+ with a fixed Er3+ concentration of 0.25 at.%, prepared by the hydrothermal method. Crystal structure and morphology of the materials were studied by x-ray diffraction (XRD) and field emission transmission electron microscopy. Characteristic light emission at 1.5 μm for radiative 4 I 13/2 → 4 I 15/2 transitions within the 4f electron shell of Er3+ ions was studied by photoluminescence (PL) and excitation spectroscopy. The optical bandgap of the nanoparticles was examined by ultraviolet--visible absorption measurements. SnO2:Er3+ nanoparticles were formed in single-phase tetragonal rutile structure by applying temperatures ranging from 120°C to 200°C during the hydrothermal synthesis. An average crystal size of 5 nm was estimated by the Scherrer equation using the XRD data and found to be independent from the investigated hydrothermal temperatures. Whereas, the Er3+-related PL intensities were found to increase strongly with the hydrothermal temperature.


SnO2:Er3+ nanoparticles hydrothermal temperature crystal structure optical properties 


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This research is financially supported by the application-oriented fundamental research program, Project No. ĐT.NCCB- ĐHU'D.2011-G/01 and the Project No. B2015-01-99.


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Copyright information

© The Minerals, Metals & Materials Society 2017

Authors and Affiliations

  • Pham  Van Tuan
    • 1
  • Le Trung Hieu
    • 1
  • La Quynh Nga
    • 1
  • Ngo Ngoc Ha
    • 1
  • Nguyen Duc Dung
    • 2
  • Tran Ngoc Khiem
    • 1
    Email author
  1. 1.International Institute for Materials ScienceHanoi University of Science and TechnologyHanoiVietnam
  2. 2.Advanced Institute for Science and TechnologyHanoi University of Science and TechnologyHanoiVietnam

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