J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (6): 949-954.DOI: 10.1016/j.jmst.2017.06.021

Special Issue: Nanomaterials 2018

• Orginal Article • Previous Articles     Next Articles

Synthesis and photoluminescence of Ca1-xTiO3:xEu3+ nanoparticles

Shang Zhouab, Hua Wangab, Li Zhongab, Junqian Zhaoab, Liang Lic**(), Guanghai Liab*()   

  1. aKey Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
    bUniversity of Science and Technology of China, Hefei 230031, China
    cCollege of Physics, Optoelectronics and Energy, Soochow University, Suzhou 215006, China
  • Received:2017-04-19 Revised:2017-04-28 Accepted:2017-04-30 Online:2018-06-10 Published:2018-06-05
  • Contact: Li Liang,Li Guanghai

Abstract:

Ca1-xTiO3:xEu3+ nanoparticles (NPs) with the size ranging from 27 nm to 135 nm were prepared by means of a chemical co-precipitation method. The structural and optical properties of the NPs were investigated, and the influence of Eu doping content and sintering temperature on the photoluminescence of the Ca1-xTiO3:xEu3+ NPs were examined. An obvious red emission band centered at 615 nm were observed under the excitation with 395 nm for the Ca1-xTiO3:xEu3+ NPs. X-ray photoelectron spectroscopy analyses suggest that Eu3+ is incorporated into not only the Ca-site, but also Ti-site of CaTiO3 crystal lattice. Our study shows the promise of the Ca1-xTiO3:xEu3+ NPs as a red nanophosphor.

Key words: Calcium titanate, Nanoparticles, Photoluminescence, Red phosphor, Crystal structure