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Luminescent Hybrid Ionogels Functionalized with rare Earth fluoride Up‐conversion Nanocrystals Dispersing in Ionic Liquid
Author(s) -
Yan ZhiYuan,
Yan Bing
Publication year - 2013
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/php.12125
Subject(s) - luminescence , ionic liquid , fluoride , transmission electron microscopy , materials science , formic acid , nanocrystal , scanning electron microscope , ionic bonding , alkoxy group , chemical engineering , inorganic chemistry , chemistry , catalysis , organic chemistry , nanotechnology , ion , alkyl , optoelectronics , engineering , composite material
Rare earth doped fluorides (BaMgF 4 , aYF 4 and BaYF 5 /BaLuF 5 ) have been synthesized and dispersed in an ionic liquid compound, (3‐triethoxysilyl) propyl‐3‐methylimidazolium chloride (denoted as IM + Cl − ). Through the cohydrolysis and copolycondensatoin reaction between the alkoxy group (3‐triethoxysilyl) of IM + and tetraethoxysilane in the presence of carboxylic acids (formic acid) as catalyst and water source, luminescent hybrid ionogels form subsequently. 1 H NMR spectroscopy, X‐ray diffraction, transmission electron microscopy, scanning electron microscopy and especially up‐conversion ( UC ) luminescence spectroscopy are used to characterize the precursors and the resulted hybrid ionogels. These hybrid ionogels exhibit the UC luminescence properties of immobilized rare earth fluoride nanocrystals (BaMgF 4 , NaYF 4 and BaYF 5 /BaLuF 5 ) doped Er 3+ /Tm 3+ , Yb 3+ .