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Controlled synthesis and photoluminescence of Zn3(PO4)2: Eu3+ nanocrystal via hydrothermal process

JIANFENG GU1, BINGYAN1,*

Affiliation

  1. Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China

Abstract

In this paper, we have successfully prepared Zn3(PO4)2: Eu3+ phosphors with regular morphologies via altering surface active agents. XRD, TEM and SEM have been used to investigate the synthesized powders, and the results show that all diffraction peaks of the product can be perfectly indexed by an orthorhombic phase with space group Pnma (62), the morphologies of the Zn3(PO4)2: Eu3+ phosphors did not change greatly with the surface active agents altering, no mater using cetyltrimethylammonium bromide (CTAB) or PTG as surface active agent, we got Zn3(PO4)2: Eu3+ nano-particles. We surmised that it may form the spherical micelles and then it played the role of the template and we got the products with the similar morphologies. Fourier transform infrared spectroscopy (FTIR) analysis was carried out to detect the products; ultraviolet – visible absorption spectra of the powder were recorded with a lambda 40 spectrometer. Finally, the photoluminescence of the products have been investigated, and found that Eu3+ ions in Zn3(PO4)2 have the same symmetry, the magnetic dipole transition 5D0-7F2 of Eu3+ ions is dominant, but the relative intensities are different..

Keywords

Hydro-thermal synthesis, Zinc phosphate, Surface active reagents, Controlled microstructure, Photoluminescence.

Submitted at: Jan. 18, 2008
Accepted at: Feb. 18, 2008

Citation

JIANFENG GU, BINGYAN, Controlled synthesis and photoluminescence of Zn3(PO4)2: Eu3+ nanocrystal via hydrothermal process, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 2, pp. 405-409 (2008)