Synthesis And Photoluminescence Properties Of Tb3+ Doped Zro2 Hollow Spheres

Keywords

Hollow Spheres; Phosphor; Photoluminescence; Tb 3+; ZrO : 2

Abstract

ZrO2:Tb3+ hollow spheres were successfully fabricated with the resin microspheres as the template. The sample characterizations were carried out by means of X-ray diffraction (XRD), scanning electron microscope (SEM) and photoluminescence (PL) spectra. XRD results revealed Tb3+ doped samples were pure t-ZrO2 phase after being calcined at 873 K. SEM results exhibited these Tb3+ doped ZrO2 was hollow spheres, the diameter and thickness of which were about 450 nm and 50 nm, respectively. The PL spectra indicate that the 5D4 →7F5 (545 nm) electric dipole transition is the most intensive when excited at 235 nm. It is shown that the 2.0 mol% of doping concentration of Tb3+ ions in t-ZrO2:Tb3+ is optimum. According to Dexter's theory, the critical distance between Tb3+ ions for energy transfer was determined to be 15 Å. It is found that the decay curves follow the single-exponential decay. The convenient synthetic procedure, excellent reproducibility, clean reactions, high yield, and fine quality of products in the work make the present route attractive and significant.

Publication Date

1-1-2017

Publication Title

Journal of Nanoscience and Nanotechnology

Volume

17

Issue

5

Number of Pages

3233-3237

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1166/jnn.2017.13058

Socpus ID

85015379694 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85015379694

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