Hydrothermal Synthesis Y2O3:Yb3+/Er3+ Nanospheres with Upconversion Luminescence from Green to Red
Nanoscience and Nanometrology
Volume 2, Issue 2, December 2016, Pages: 41-45
Received: Sep. 29, 2016; Accepted: Oct. 19, 2016; Published: Nov. 3, 2016
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Authors
Jie Yang, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
Jiali Gu, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
Renhe Yang, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
Qinyu Shang, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
Jun Yang, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
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Abstract
Well-dispersed, uniform Y2O3:Yb3+/Er3+ nanospheres have been successfully prepared at 160°C via a facile hydrothermal route without using any templates, followed by a subsequent calcination process. X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and upconversion photoluminescence spectra were employed to characterize the samples. The SEM and TEM images indicate that the samples consist of separated spheres with a mean diameter of about 75 nm. Under the excitation of 980-nm laser, the Y2O3:Yb3+/Er3+ phosphors exhibit bright upconversion photoluminescence from green to red with different Yb3+ content, which is easily observed by our naked eyes. Due to multicolor tunable luminescence, ideal spherical shape, and cheap materials of Y2O3 host, the as-prepared phosphors are potentially applied for color displays, back light, UC lasers, photonics, and biomedicine.
Keywords
Y2O3 Nanosphere, Hydrothermal Synthesis, Yb→Er Energy Transfer, Upconversion Luminescence
To cite this article
Jie Yang, Jiali Gu, Renhe Yang, Qinyu Shang, Jun Yang, Hydrothermal Synthesis Y2O3:Yb3+/Er3+ Nanospheres with Upconversion Luminescence from Green to Red, Nanoscience and Nanometrology. Vol. 2, No. 2, 2016, pp. 41-45. doi: 10.11648/j.nsnm.20160202.11
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Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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