NDLI: Unusual Effect of Cerium Codoping on Stokes and Anti-Stokes Luminescence of BiOCl:Er <sup>3+</sup> Crystal

Content Provider	IEEE Xplore Digital Library
Author	Qun Liu Yongjin Li Qingliang Kuang Zhiguo Song Ronghua Wan Yuting Zhou Zuyuan Xu Rui Hu Jianbei Qiu Zhengwen Yang Zhaoyi Yin
Copyright Year	2009
Abstract	Effect of cerium codoping on Stokes or anti-Stokes luminescence of BiOCl:Er ³⁺ crystals, which were controlled by a special photon avalanche (PA) mechanism under 980-nm excitation, was investigated. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analysis indicate that Ce ³⁺ ions were successfully doped into BiOCl lattices. However, in PA photoluminescence behaviors, the doped Ce ³⁺ ions did not present efficient resonant energy transfer (ET) processes between the Er ³⁺ ions as generally reported. As a result, the intensity of visible PA upconversion emission and 1.54 $\mu\text{m}$ downshifting near-infrared (NIR) emission of Er ³⁺ ions shows the same concentration dependence of cerium dopants. This phenomenon can be understood by the influence of cerium dopant content on the magnitude of internal electric field in layered BiOCl crystals, which may play a more important role on the upconversion (UC) and NIR luminescence of Er ³⁺ than the traditional ET between rare-earth (RE) ions. The results of our work may offer a different understanding for the method to control the emissions of RE ions.
Starting Page	1
Ending Page	8
Page Count	8
File Size	856282
File Format	PDF
ISSN	19430655
Volume Number	7
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ions Absorption Cerium Luminescence Crystals X-ray diffraction Lattices NIR emission Ce-Er codoped BiOCl crystals photon avalanche near-infrared (NIR) emission Ce–Er codoped
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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Unusual Effect of Cerium Codoping on Stokes and Anti-Stokes Luminescence of BiOCl:Er 3+ Crystal

Unusual Effect of Cerium Codoping on Stokes and Anti-Stokes Luminescence of BiOCl:Er ³⁺ Crystal