掺铒镱氧化锌纳米粒子的合成、表征及光学性能

Journal of nanoscience and nanotechnology Pub Date : 2021-11-01 DOI:10.1166/jnn.2021.19489

S Fuentes, D Espinoza, J León

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引用次数: 2

摘要

本文通过溶胶-凝胶-水热工艺研究了未掺杂ZnO和掺杂Er3+和Yb3+镧系离子纳米粒子(NPs)的结构、颗粒形态和光学性质。根据x射线衍射图，ZnO:Er和ZnO:Yb是由平均粒径为~65 nm的单相纤锌矿结构形成的，而Er或Yb离子在ZnO的六角形结构中，特别是在其畸变晶格位中掺杂。结果还表明，氧空位或氧缺陷可能在ZnO向Er或Yb离子的能量转移中起作用，带隙值分别降低3.18 eV和3.19 eV至红移。

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Synthesis, Characterization and Optical Properties of ZnO Nanoparticles Doped with Er and Yb.

This paper discusses the structure, particle morphology, and optical properties of un-doped ZnO and ZnO doped with Er³⁺ and Yb³⁺ lanthanide ion nanoparticles (NPs) through a process denominated sol-gel-hydrothermal. According to the pattern of X-ray diffraction, ZnO:Er and ZnO:Yb is formed by a single-phase wurtzite structure with crystallites sized ~65 nm on average, and Er or Yb dopant ions in the hexagonal structure of ZnO, specifically in its distorted lattice sites. The results also suggest the possible role of oxygen vacancies or O^x- (defects) in the energy transfer from ZnO to the Er or Yb ions with a decrease of 3.18 eV and 3.19 eV in bandgap values to a red shift.

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来源期刊

Journal of nanoscience and nanotechnology 工程技术-材料科学：综合

自引率

0.00%

发文量

审稿时长

3.6 months

期刊介绍： JNN is a multidisciplinary peer-reviewed journal covering fundamental and applied research in all disciplines of science, engineering and medicine. JNN publishes all aspects of nanoscale science and technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, theory and computation, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology.