title: Hydrogels dispersed by doped rare earth fluoride nanocrystals: ionic liquid dispersion and down/up-conversion luminescence.
abstract: Two typical kinds of rare earth fluoride nanocrystals codoped with rare earth ions (Eu(3+) and Tm(3+)/Er(3+),Yb(3+)) are synthesized and dispersed in ionic liquid compound (1-chlorohexane-3-methylimidazolium chloride, abbreviated as [C6mim][Cl]). Assisted by agarose, the luminescent hydrogels are prepared homogeneously. The down/up-conversion luminescence of these hydrogels can be realized for the dispersed rare earth fluoride nanocrystals. The results provide a strategy to prepare luminescent (especially up-conversion luminescent) hydrogels with ionic liquid to disperse rare earth fluoride nanocrystals.
authors.affiliation: Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China.
authors.forename: Zhi-Yuan
authors.initials: ZY
authors.lastname: Yan
authors.affiliation: Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China.
authors.forename: Li-Ping
authors.initials: LP
authors.lastname: Jia
authors.affiliation: Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China. Electronic address: byan@tongji.edu.cn.
authors.forename: Bing
authors.initials: B
authors.lastname: Yan
mesh_terms: D005459:Fluorides / Q000737:chemistry*; D020100:Hydrogels / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D049449:Luminescence; D008674:Metals, Rare Earth / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D014961:X-Ray Diffraction
chemical_list: D020100:Hydrogels; D052578:Ionic Liquids; D008674:Metals, Rare Earth; D005459:Fluorides
keywords: Down/up-conversion luminescence; Fluoride nanocrystals; Hydrogel; Ionic liquid; Rare earth ion