Femtosecond-pulse laser-ablation-induced synthesis and improved emission properties of ultrafine Y2O3:Er3+, Yb3+ nanoparticles with reduced nonradiative relaxation
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- 作者：Changbin Zheng ; zhengchangbin@ciomp.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Guilong Yang ; Kuo Zhang ; Chunrui Wang ; Hualong Wang ; Fei Chen ; Yang He
- 关键词：Rare earth alloys and compounds ; Laser ablation ; Optical properties ; Optical spectroscopy ; Nonradiative relaxation
- 刊名：Journal of Alloys and Compounds
- 出版年：2015
- 出版时间：5 November 2015
- 年：2015
- 卷：648
- 期：Complete
- 页码：838-844
- 全文大小：1313 K
文摘
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Y2O3:Er3+, Yb3+ nanoparticles are prepared by laser ablation on the oxide mixture.
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Number of carbonate and hydroxyl groups in the nanoparticles is decreased.
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These nanoparticles present improved emission properties.
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For the first time, infrared emission at 1550 nm is almost suppressed.
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Mechanisms are explained in terms of reduced nonradiative relaxation.