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Enhanced Upconversion Emission in Core–Shell Gd2O3: Yb/Er(Tm)@Gd2O3 Nanocrystal

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Yb3+ and Er3+/Tm3+-codoped Gd2O3 core–shell nanoparticles were synthesized by a homogeneous precipitation method in our work. Under 980 nm laser excitation, a great enhancement of the upconversion (UC) emissions in Gd2O3: Yb/Er(Tm) has been observed by coating the homogeneous shell. Meanwhile, energy-transfer processes and excited absorption are discussed on the basis of our experimental results.
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Keywords: CORE–SHELL; GD2O3; LUMINESCENCE

Document Type: Short Communication

Publication date: March 1, 2017

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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