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UV and VUV Spectroscopy of ns2-type Ions Co-doped YBO3:Eu3+ Red Phosphor

Published online by Cambridge University Press:  01 February 2011

L.L. Wang ,
Y.H. Wang  and
W.X. Hua
L.L. Wang
Affiliation:
wanglingl03@st.lzu.edu.cnSchool of Physical Science and Technology,Lanzhou Universitya) Department of Material Science Lanzhou Gansu 730000China, People's Republic of
Y.H. Wang
Affiliation:
wyh@lzu.edu.cn, School of Physical Science and Technology,Lanzhou University, a) Department of Mat erial Science, No.222 South Tianshui Road, Lanzhou, Gansu, 730000, China, People's Republic of
W.X. Hua
Affiliation:
hwx@lzu.edu.cn, Lanzhou University, b) School of Continuing Education, Lanzhou, Gansu, 730000, China, People's Republic of
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Abstract

YBO3:5% Eu3+ co-doped with some ns2-type ions were synthesized by solid-state reaction and their luminescence properties under ultraviolet (UV) and vacuum ultraviolet (VUV) region were investigated. The results indicated that in the excitation spectrum of YBO3:5%Eu3+, the strong charge transfer (CT) band of Eu3+ was located in the UV region and the absorption band of the host lattice lay in the VUV region. When the ns2-type ions, such as Sn2+ and Sb3+(n=5), Tl+, Pb2+ and Bi3+(n=6) were co-doped into the host lattice of YBO3:5%Eu3+, the CTS band of Eu3+ was shifted. The intensity of the host lattice absorption band was improved with the incorporation of Tl+, Pb2+ or Bi3+, while decreased with Sn2+ or Sb3+. These luminescent phenomena were analyzed in detail and possible reasons were given.

Keywords

optical propertiesdopantluminescence
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 916: Symposium DD – Solid-State Lighting Materials and Devices , 2006 , 0916-DD03-01
Copyright
Copyright © Materials Research Society 2006

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