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Shangda Xia
Researcher at University of Science and Technology of China
Publications - 44
Citations - 1401
Shangda Xia is an academic researcher from University of Science and Technology of China. The author has contributed to research in topics: Photon upconversion & Ion. The author has an hindex of 16, co-authored 44 publications receiving 1336 citations. Previous affiliations of Shangda Xia include City University of Hong Kong & Chongqing University.
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Journal ArticleDOI
Visible Upconversion in Rare Earth Ion-Doped Gd2O3 Nanocrystals
TL;DR: In this article, rare earth ions (Tm3+, Er3+, and Yb3+)-doped cubic Gd2O3 nanocrystals were prepared by a simple sol−gel method.
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Optical properties of nanocrystalline Y2O3:Eu depending on its odd structure
Weiwei Zhang,Weiping Zhang,Ping-Bo Xie,Min Yin,Hou-Tong Chen,Long Jing,Yunsheng Zhang,L.H. Lou,Shangda Xia +8 more
TL;DR: The structure of nanocrystalline Y2O3:Eu prepared by a combustion reaction was analyzed by XRD and high-resolution electron microscopy and showed remarkably particle size effects, which can be attributed to the effect of the softened lattice and surface state of the nanomaterial.
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Preparation and size effect on concentration quenching of nanocrystalline Y2SiO5:Eu
Weiping Zhang,Ping-Bo Xie,Chang-Kui Duan,Kuo Yan,Min Yin,L.H. Lou,L.H. Lou,Shangda Xia,J.-C. Krupa +8 more
TL;DR: In this article, the photoluminescence spectra and quenching concentration of nanocrystalline Y2SiO5:Eu and normal Y2 SiO5 :Eu synthesized by high-sintering method were measured and compared.
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Blue upconversion of cubic Gd2O3:Er produced by green laser
TL;DR: In this paper, the upconversion luminescence spectra of Er3+ were investigated under excitation into the 2H11/2 level by 514.5nm Ar+ laser.
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Luminescence concentration quenching of 1D2 state in YPO4:Pr3+
TL;DR: In this paper, the emission spectra and fluorescence decay curves of the 1D2 level were measured at different concentrations and temperatures under selective excitation of the 3P0 level of the Pr3+ ion in YPO4.