EFFECT OF TEMPERATURE, DOPING CONCENTRATION ON OPTICAL PROPERTIES OF ZNO NANOPARTICLES AND Er3+ IONS CO- DOPED SILICA

  • Le Thi Thu Hien Hung Yen University of Technology and Education
  • Le My Phuong Viet Nam Maritime University
  • Tran Ngoc Khiem Hanoi University of Science & Technology
  • Nguyen Duc Chien Hanoi University of Science & Technology
Keywords: ZnO-SiO2 nanocomposite, photoluminescence, energy transfer, thermal quenching

Abstract

This work reports on SiO2 thin films co-doped with ZnO nanoparticles and Er3+ ions prepared by sol- gel method and spin- coating process. After growth, heat treatment processes in the air at the annealing temperatures of 600 oC, 700 oC, 800 oC, 900 oC and 1000 oC for 3h have been applied for calcination. Scanning electron microscopic images showed that ZnO nanoparticles dispersed in a thin layer of SiO2 are formed with diameter in the range of about 20-30 nm. The characteristic emission band at 1540 nm from intra-4f electronic shell of Er3+ ions can be observed. We found that these PL spectra depend on annealing temperature, Er doping concentration and ZnO content. It can explained by the energy transfer from ZnO nanocrystals to Er3+ dopants.

References

Mears, R.J., et al., Low -noise erbium - doped fiber amplifier operating at 1.54 µm. Electronics Letters, 1987. 23, No. 19: p. 1026-1028.

Miniscalco, W.J., General procedure for the analysis of Er3+ cross sections. Optics Leters, 1991. 16, No. 4: p. (258-260).

Lauro J. Q. Maia*, a., et al., NIR Luminescence from Sol-Gel Er3+ Doped SiO2:GeO2 Transparent Gels, Nanostructured Powders and Thin Films for Photonic Applications. J. Braz. Chem. Soc, 2015. 26, No. 12: p. 2545-2557.

Hong, J.-H., et al., A new photoluminescence emission peak of ZnO–SiO2 nanocomposites and its energy transfer to Eu3+ ions. Journal of Physics and Chemistry of Solids, 2007. 68 p. 1359-1363.

F. Xiao, et al., Efficient Energy Transfer and Enhanced Infrared Emission in Er- Doped ZnO-SiO2 Composites. J. Phys. Chem. C, 2012. 116: p. 13458-13462.

Samaele, N., P. Amornpitoksuk, and S. Suwanboon, Effect of pH on the morphology and optical properties of modified ZnO particles by SDS via a precipitation method. Mater. Lett, 2010. 64: p. 500-502.

Huang XingYong, et al., Concentration quenching in transparent glass ceramics containing Er3+:NaYF4 nanocrystals. Scicence China-Physics, Mechanics & Astronomy, 2012. 55 No.7: p. 1148-1151.

F. Xiao, et al., Efficient Energy Transfer and Enhanced Infrared Emission in Er- Doped ZnO-SiO2 Composites. J. Phys. Chem. C, 2012. 116: p. 13458- 13462.

Published
2020-04-11
How to Cite
Le Thi Thu Hien, Le My Phuong, Tran Ngoc Khiem, & Nguyen Duc Chien. (2020). EFFECT OF TEMPERATURE, DOPING CONCENTRATION ON OPTICAL PROPERTIES OF ZNO NANOPARTICLES AND Er3+ IONS CO- DOPED SILICA. UTEHY Journal of Science and Technology, 21, 62-65. Retrieved from http://tapchi.utehy.edu.vn/index.php/jst/article/view/18