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Xiaogang Liu
Researcher at National University of Singapore
Publications - 605
Citations - 54443
Xiaogang Liu is an academic researcher from National University of Singapore. The author has contributed to research in topics: Medicine & Photon upconversion. The author has an hindex of 94, co-authored 425 publications receiving 41825 citations. Previous affiliations of Xiaogang Liu include Heilongjiang University & Massachusetts Institute of Technology.
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Preparation of core-shell NaGdF4 nanoparticles doped with luminescent lanthanide ions to be used as upconversion-based probes
TL;DR: This protocol describes the detailed experimental procedure for synthesizing core-shell NaGdF4 nanoparticles that incorporate lanthanide ions into different layers for efficiently converting a single-wavelength, near-IR excitation into a tunable visible emission.
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Enhancing multiphoton upconversion through energy clustering at sublattice level
Juan Wang,Renren Deng,Mark MacDonald,Bolei Chen,Jikang Yuan,Feng Wang,Dongzhi Chi,Tzi Sum Andy Hor,Peng Zhang,Guokui Liu,Yu Han,Xiaogang Liu +11 more
TL;DR: A new class of upconversion nanocrystals adopting an orthorhombic crystallographic structure in which the lanthanide ions are distributed in arrays of tetrad clusters is described, which enables the preservation of excitation energy within the sublattice domain and effectively minimizes the migration ofexcitation energy to defects.
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Colour-tunable ultra-long organic phosphorescence of a single-component molecular crystal
Long Gu,Huifang Shi,Lifang Bian,Mingxing Gu,Kun Ling,Xuan Wang,Huili Ma,Suzhi Cai,Wei-Hua Ning,Lishun Fu,He Wang,Shan Wang,Yaru Gao,Wei Yao,Fengwei Huo,Youtian Tao,Zhongfu An,Xiaogang Liu,Wei Huang,Wei Huang,Wei Huang +20 more
TL;DR: In this paper, a colour-tunable, ultra-long organic phosphorescence (UOP) can be tuned by varying the excitation wavelength, allowing dynamic colour tuning from the violet to the green part of the visible spectrum.
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Enhancing luminescence in lanthanide-doped upconversion nanoparticles.
TL;DR: The underlying principles of controlling energy transfer through lanthanide doping are presented, the major advances and key challenging issues in improving upconversion luminescence are overviewed, and the likely directions of future research in the field are considered.
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Single-band upconversion emission in lanthanide-doped KMnF3 nanocrystals.
TL;DR: A novel oil-based procedure for the synthesis of lanthanide-doped KMnF3 nanocry crystals with only single-band UC emissions from Er, Ho, and Tm dopants is reported, which shows that these nanocrystals can serve as ideal optical biolabels for deep-tissue imaging without the constraints associated with conventional multipeak UC nanocrystal.