Hydrothermal synthesis and luminescent properties of Y{sub 2}O{sub 3}:Tb{sup 3+} and Gd{sub 2}O{sub 3}:Tb{sup 3+} microrods

Journal Article · Tue Sep 15 00:00:00 EDT 2009 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2009.05.017· OSTI ID:22029848

Jun, Yang; Zhiyao, Hou; Chunxia, Li; Cuimiao, Zhang; Shanshan, Huang ^[1]

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1. State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Remin Street, Changchun 130022, and Graduate University of the Chinese Academy of Sciences, Beijing 100049 (China)

One-dimensional (1D) Y{sub 2}O{sub 3}:Tb{sup 3+} and Gd{sub 2}O{sub 3}:Tb{sup 3+} microrods have been successfully prepared through a large-scale and facile hydrothermal method followed by a subsequent calcination process in N{sub 2}/H{sub 2} mixed atmosphere. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (IR), thermogravimetric analysis (TGA), energy-dispersive X-ray spectra (EDX), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED), photoluminescence (PL) and cathodoluminescence (CL) spectra as well as kinetic decays were used to characterize the samples. The as-formed products via the hydrothermal process could transform to cubic Y{sub 2}O{sub 3}:Tb{sup 3+} and Gd{sub 2}O{sub 3}:Tb{sup 3+} with the same morphology and slight shrinking in size after a postannealing process. Both Y{sub 2}O{sub 3}:Tb{sup 3+} and Gd{sub 2}O{sub 3}:Tb{sup 3+} microrods exhibit strong green emission corresponding to {sup 5}D{sub 4} {yields} {sup 7}F{sub 5} transition (542 nm) of Tb{sup 3+} under UV light excitation (307 and 258 nm, respectively), and low-voltage electron beam excitation (1.5 {yields} 3.5 kV), which have potential applications in fluorescent lamps and field emission displays.

• OSTI ID: 22029848
• Journal Information: Materials Research Bulletin, Vol. 44, Issue 9; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CATHODOLUMINESCENCE
ELECTRON BEAMS
ELECTRON DIFFRACTION
FIELD EMISSION
FOURIER TRANSFORM SPECTROMETERS
GADOLINIUM OXIDES
HYDROTHERMAL SYNTHESIS
PHOTOLUMINESCENCE
SCANNING ELECTRON MICROSCOPY
TERBIUM IONS
THERMAL GRAVIMETRIC ANALYSIS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
X-RAY SPECTRA
YTTRIUM OXIDES