Up-Conversion Luminescence Properties of Ho super(3+) Doped and Yb super(3+)/Ho super(3+) Co-Doped Y sub(2) WO sub(6) Phosphors

In this article, Ho super(3+) doped and Yb super(3+)/ Ho super(3+) co-doped Y sub(2) WO sub(6) phosphors were successfully prepared via high temperature solid method. Their structures were investigated with X-ray diffraction, the up-conversion (UC) excitation from a 980 nm diode laser, and the devel...

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Published inKey Engineering Materials Vol. 727; pp. 618 - 622
Main Authors Gao, Xue Dong, Xu, Deng Hui, Zhu, Yao Hui, Yang, Zai Fa, Du, Jiang Nan, Sun, Jia Yue
Format Journal Article
LanguageEnglish
Published 01.01.2017
Subjects
Banded structure
Emission
Luminescence
Optical properties
Phosphors
Pumps
Upconversion
X ray diffraction
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Summary:In this article, Ho super(3+) doped and Yb super(3+)/ Ho super(3+) co-doped Y sub(2) WO sub(6) phosphors were successfully prepared via high temperature solid method. Their structures were investigated with X-ray diffraction, the up-conversion (UC) excitation from a 980 nm diode laser, and the developed phosphor shown two UC emission bands in the visible region 540 and 643 nm. Based on the result, the intensity of the frequency up-conversion emission was enhanced significantly through co-doping with Yb super(3+) ions in the Y sub(2) WO sub(6): Ho super(3+) phosphor. The dependence of emission intensity on the pump power indicated that the up-conversion emission was a two-photon process. At last, the energy level diagrams was discussed. The results show that Y sub(2) WO sub(6) is a promising host material for UC phosphors.
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ISBN:9783035710526
303571052X
ISSN:1013-9826
1662-9795
DOI:10.4028/www.scientific.net/KEM.727.618