| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1230529 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2014 | 5 Pages |
•New luminescent hydrogels are prepared.•Rare earth fluoride nanocrystals are dispersed into ionic liquid compound.•Up-conversion luminescence of the fluoride dispersed hydrogel are obtained.
Two typical kinds of rare earth fluoride nanocrystals codoped with rare earth ions (Eu3+ and Tm3+/Er3+,Yb3+) 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.
Graphical abstractTwo typical kinds of hydrogels are prepared with codoped rare earth fluoride nanocrystals dispersed in ion liquid compound ([C6mim][Cl]) assisted by agarose, which present the up-conversion luminescence of the immobilized rare earth fluoride nanocrystals.Figure optionsDownload full-size imageDownload as PowerPoint slide
