Issue 6, 2011

Size and shape controllable synthesis and luminescent properties of BaGdF5:Ce3+/Ln3+ (Ln = Sm, Dy, Eu, Tb) nano/submicrocrystals by a facile hydrothermal process

Abstract

In this paper, we present a facile and environmentally-friendly hydrothermal process to synthesize BaGdF5: 2.5 mol% Ce3+/2.5 mol% Ln3+ (Ln = Sm, Dy, Eu and Tb) nano/submicroparticles. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), as well as photoluminescence (PL) spectra are used to characterize the resulting samples. The size, shape, and composition of the products could be tuned just by varying the organic additives and the pH values of the initial reaction solutions. The morphologies for the products include nanospheres, submicrospheres, peanut-like particles, as well as the spindle-like and star-like aggregates. Moreover, the size of the samples can be tuned from 50 nm to 150 nm. Additionally, we systematically investigate the luminescence properties of different lanthanide ions in BaGdF5 host. Under single-wavelength excitation at 260 nm, the samples doped with different lanthanide ions show intensive multicolor visible emissions depending on the doped Ln3+ ions. The luminescence process can be attributed to the strong absorption of UV irradiation by Ce3+ ions, followed by energy transfer to Gd3+ ions, from which the energy is transferred to Ln3+, resulting in the emission from the luminescent Ln3+ centers. The Gd3+ ions play an intermediate role in this process.

Graphical abstract: Size and shape controllable synthesis and luminescent properties of BaGdF5:Ce3+/Ln3+ (Ln = Sm, Dy, Eu, Tb) nano/submicrocrystals by a facile hydrothermal process

Article information

Article type
Paper
Submitted
24 Feb 2011
Accepted
31 Mar 2011
First published
20 Apr 2011

Nanoscale, 2011,3, 2589-2595

Size and shape controllable synthesis and luminescent properties of BaGdF5:Ce3+/Ln3+ (Ln = Sm, Dy, Eu, Tb) nano/submicrocrystals by a facile hydrothermal process

D. Yang, X. Kang, M. Shang, G. Li, C. peng, C. Li and J. Lin, Nanoscale, 2011, 3, 2589 DOI: 10.1039/C1NR10203F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements