Chemical combustion synthesis and up-conversion properties of Er 3+ doped Yb 3Al 5O 12 powder

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1188-1192
Journal / PublicationOptical Materials
Volume32
Issue number9
Publication statusPublished - Jul 2010

Abstract

Er 3+ doped Yb 3Al 5O 12 powder has been prepared by chemical combustion and their structural and optical properties are determined by X-ray diffraction (XRD), transmission electron microscopy (TEM), and up-conversion (UC) spectra. XRD and TEM show that the powder is composed of a highly crystalline garnet phase. When excited by a 980 nm laser diode, the Er 3+ doped Yb 3Al 5O 12 powder shows an intense red UC fluorescent band that can be assigned to the transition 4F 9/24I 15/2 of Er 3+ and a relatively weak green one corresponding to 2H 11/2/ 4S 3/24I 15/2 in the UC spectra. The intensity ratio of the red to green emission is enhanced due to Li + incorporation. This can be attributed to the modification of local crystal fields around the rare-earth ions. Our results suggest that rare-earth doped alumina nanomaterials have potential applications in flat-panel displays and multicolor fluorescent labels. © 2010 Elsevier B.V. All rights reserved.

Research Area(s)

  • Chemical combustion method, Local crystal field, Up-conversion

Citation Format(s)

Chemical combustion synthesis and up-conversion properties of Er 3+ doped Yb 3Al 5O 12 powder. / Xu, C. F.; Yang, L. W.; Han, H. L. et al.
In: Optical Materials, Vol. 32, No. 9, 07.2010, p. 1188-1192.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review