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Mid-Infrared Emission of Transition Metal Co2+-Doped ZnSe Nanocrystals at Room Temperature via Hydrothermal Preparation
Chen, Meiling1,2; Cui, Xiaoxia1; Xiao, Xusheng1,2; Xu, Yantao1,2; Cui, Jian1,2; Guo, Junjiang1,2; Liu, Chao3; Guo, Haitao1
作者部门特种光纤材料及器件研究中心
2019-05-24
发表期刊ACS Applied Nano Materials
ISSN25740970
卷号2期号:5页码:2844-2853
产权排序1
摘要

A series of Co2+:ZnSe and Co2+:ZnSe/ZnSe nanocrystals emitting mid-infrared (mid-IR) fluorescence centered at around 3.4 and 4.7 μm were successfully synthesized via a simple hydrothermal method. The core/shell structure and post-heat treatment under reducing atmosphere were adopted to decrease the nanocrystal's surface quenching centers and defects and improve the mid-IR photoluminescence. By analysis of the X-ray diffraction, X-ray photoelectron spectroscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy (TEM), high-resolution TEM, Fourier transform IR, absorption, and mid-IR emission measurements of serial concentrations of Co2+-doped ZnSe nanocrystals, the crystal phase, grain size, core/shell structure, distribution of Co2+ ions, impurities on the surface, and mid-IR emission performance were investigated in detail. By use of optimum Co2+ concentration, core/shell structure construction, and proper post-heat treatment, the mid-IR emission intensities of nanocrystals were enhanced by an order of magnitude, and the nanocrystals showed excellent dispersibility. These high-quality optically active nanomaterials have potential uses in mid-IR devices such as composite fiber amplifiers and hot-pressed ceramic laser materials. © 2019 American Chemical Society.

关键词Co:ZnSe mid-IR fluorescence hydrothermal method core/shell heat treatment
DOI10.1021/acsanm.9b00307
收录类别EI
语种英语
出版者American Chemical Society
EI入藏号20193507364564
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/31825
专题光子功能材料与器件研究室
通讯作者Guo, Haitao
作者单位1.State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an, Shaanxi; 710119, China;
2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences (UCAS), Beijing; 100049, China;
3.State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, Hubei; 430070, China
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Chen, Meiling,Cui, Xiaoxia,Xiao, Xusheng,et al. Mid-Infrared Emission of Transition Metal Co2+-Doped ZnSe Nanocrystals at Room Temperature via Hydrothermal Preparation[J]. ACS Applied Nano Materials,2019,2(5):2844-2853.
APA Chen, Meiling.,Cui, Xiaoxia.,Xiao, Xusheng.,Xu, Yantao.,Cui, Jian.,...&Guo, Haitao.(2019).Mid-Infrared Emission of Transition Metal Co2+-Doped ZnSe Nanocrystals at Room Temperature via Hydrothermal Preparation.ACS Applied Nano Materials,2(5),2844-2853.
MLA Chen, Meiling,et al."Mid-Infrared Emission of Transition Metal Co2+-Doped ZnSe Nanocrystals at Room Temperature via Hydrothermal Preparation".ACS Applied Nano Materials 2.5(2019):2844-2853.
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