Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China.
Department of Chemistry, Tongji University, Siping Road 1239, Shanghai 200092, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2014;121:732-6. doi: 10.1016/j.saa.2013.12.071. Epub 2013 Dec 17.
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.
两种典型的共掺稀土离子（Eu(3+)和 Tm(3+)/Er(3+),Yb(3+))的氟化物纳米晶被合成并分散在离子液体化合物（1-氯己烷-3-甲基咪唑氯化物，简称[C6mim][Cl]）中。在琼脂糖的辅助下，均匀地制备了发光水凝胶。这些水凝胶可以实现分散的稀土氟化物纳米晶的下转换/上转换发光。该结果为制备具有离子液体分散稀土氟化物纳米晶的发光（特别是上转换发光）水凝胶提供了一种策略。
