Effect of defect state on photon synergistic process in KLu2F7:Yb3+, Er3+ nanoparticles

Wenjuan Bian; Wei Lu; Yushuang Qi; Xue Yu; Dacheng Zhou; Yong Yang; Jianbei Qiu; Xuhui Xu

doi:10.1016/j.jssc.2016.07.028

Effect of defect state on photon synergistic process in KLu₂F₇:Yb³⁺, Er³⁺ nanoparticles

Wenjuan Bian, Wei Lu, Yushuang Qi, Xue Yu, Dacheng Zhou, Yong Yang, Jianbei Qiu, Xuhui Xu

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The synergistic effect appeared due to the cooperative dual-wavelength excitation by near-infrared (NIR) and ultraviolet (UV) light in rare-earth doped nano-particles (NPs) is very important to improve solar cell efficiency. Herein, we studied the synergistic effect combined with the energy levels of Er³⁺ ions and the defect states in KLu₂F₇ NPs. The introduction of Ce³⁺ ions in KLu₂F₇:16%Yb³⁺, 2%Er³⁺ NPs results in significant improvement of synergistic effect by producing more vacancy defects (V_K^′) which serves as shallow traps. We verify unambiguously that the control of the defects distribution exerts a facile approach to promote the synergistic effect with the assistance of Ce³⁺ ions doping.

Original language	English
Pages (from-to)	222-227
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	242
DOIs	https://doi.org/10.1016/j.jssc.2016.07.028
State	Published - Oct 1 2016
Externally published	Yes

Keywords

Ce doping
Defects
Dual-wavelength
Synergistic effect

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10.1016/j.jssc.2016.07.028

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title = "Effect of defect state on photon synergistic process in KLu2F7:Yb3+, Er3+ nanoparticles",

abstract = "The synergistic effect appeared due to the cooperative dual-wavelength excitation by near-infrared (NIR) and ultraviolet (UV) light in rare-earth doped nano-particles (NPs) is very important to improve solar cell efficiency. Herein, we studied the synergistic effect combined with the energy levels of Er3+ ions and the defect states in KLu2F7 NPs. The introduction of Ce3+ ions in KLu2F7:16%Yb3+, 2%Er3+ NPs results in significant improvement of synergistic effect by producing more vacancy defects (VK′) which serves as shallow traps. We verify unambiguously that the control of the defects distribution exerts a facile approach to promote the synergistic effect with the assistance of Ce3+ ions doping.",

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author = "Wenjuan Bian and Wei Lu and Yushuang Qi and Xue Yu and Dacheng Zhou and Yong Yang and Jianbei Qiu and Xuhui Xu",

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doi = "10.1016/j.jssc.2016.07.028",

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T1 - Effect of defect state on photon synergistic process in KLu2F7:Yb3+, Er3+ nanoparticles

AU - Bian, Wenjuan

AU - Lu, Wei

AU - Qi, Yushuang

AU - Yu, Xue

AU - Zhou, Dacheng

AU - Yang, Yong

AU - Qiu, Jianbei

AU - Xu, Xuhui

PY - 2016/10/1

Y1 - 2016/10/1

N2 - The synergistic effect appeared due to the cooperative dual-wavelength excitation by near-infrared (NIR) and ultraviolet (UV) light in rare-earth doped nano-particles (NPs) is very important to improve solar cell efficiency. Herein, we studied the synergistic effect combined with the energy levels of Er3+ ions and the defect states in KLu2F7 NPs. The introduction of Ce3+ ions in KLu2F7:16%Yb3+, 2%Er3+ NPs results in significant improvement of synergistic effect by producing more vacancy defects (VK′) which serves as shallow traps. We verify unambiguously that the control of the defects distribution exerts a facile approach to promote the synergistic effect with the assistance of Ce3+ ions doping.

AB - The synergistic effect appeared due to the cooperative dual-wavelength excitation by near-infrared (NIR) and ultraviolet (UV) light in rare-earth doped nano-particles (NPs) is very important to improve solar cell efficiency. Herein, we studied the synergistic effect combined with the energy levels of Er3+ ions and the defect states in KLu2F7 NPs. The introduction of Ce3+ ions in KLu2F7:16%Yb3+, 2%Er3+ NPs results in significant improvement of synergistic effect by producing more vacancy defects (VK′) which serves as shallow traps. We verify unambiguously that the control of the defects distribution exerts a facile approach to promote the synergistic effect with the assistance of Ce3+ ions doping.

KW - Ce doping

KW - Defects

KW - Dual-wavelength

KW - Synergistic effect

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DO - 10.1016/j.jssc.2016.07.028

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SN - 0022-4596

VL - 242

SP - 222

EP - 227

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -

Effect of defect state on photon synergistic process in KLu₂F₇:Yb³⁺, Er³⁺ nanoparticles

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Keywords

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