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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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Journal ArticleDOI
Simultaneous phase and size control of upconversion nanocrystals through lanthanide doping
Feng Wang,Yu Han,C. S. Lim,Yunhao Lu,Juan Wang,Jun Xu,Hongyu Chen,Chun Zhang,Minghui Hong,Minghui Hong,Xiaogang Liu +10 more
TL;DR: The results suggest that the doping-induced structural and size transition, demonstrated here in NaYF4 upconversion nanocrystals, could be extended to other lanthanide-doped nanocrystal systems for applications ranging from luminescent biological labels to volumetric three-dimensional displays.
Journal ArticleDOI
Recent advances in the chemistry of lanthanide-doped upconversion nanocrystals
Feng Wang,Xiaogang Liu +1 more
TL;DR: This tutorial review focuses on the recent development of various synthetic approaches and possibilities for chemical tuning of upconversion properties, as well as giving an overview of biological applications of these luminescent nanocrystals.
Journal ArticleDOI
Imparting functionality to a metal–organic framework material by controlled nanoparticle encapsulation
Guang Lu,Shaozhou Li,Zhen Guo,Omar K. Farha,Brad G. Hauser,Xiaoying Qi,Yi Wang,Xin Wang,Sanyang Han,Xiaogang Liu,Xiaogang Liu,Joseph S. DuChene,Hua Zhang,Qichun Zhang,Xiaodong Chen,Jan Ma,Say Chye Joachim Loo,Wei David Wei,Yanhui Yang,Joseph T. Hupp,Fengwei Huo +20 more
TL;DR: A controlled encapsulation strategy is reported that enables surfactant-capped nanostructured objects of various sizes, shapes and compositions to be enshrouded by a zeolitic imidazolate framework (ZIF-8).
Journal ArticleDOI
Tuning upconversion through energy migration in core–shell nanoparticles
Feng Wang,Renren Deng,Juan Wang,Qingxiao Wang,Yu Han,Haomiao Zhu,Xueyuan Chen,Xiaogang Liu,Xiaogang Liu +8 more
TL;DR: By rational design of a core-shell structure with a set of lanthanide ions incorporated into separated layers at precisely defined concentrations, efficient upconversion emission can be realized through gadolinium sublattice-mediated energy migration for a wide range of Lanthanide activators without long-lived intermediary energy states.
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Enhancing solar cell efficiency: the search for luminescent materials as spectral converters
TL;DR: This review will survey recent progress in the development of spectral converters, with a particular emphasis on lanthanide-based upconversion, quantum-cutting and down-shifting materials, for PV applications, and present technical challenges that arise in developing cost-effective high-performance solar cells based on these luminescent materials.