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Raman and Fluorescence Imaging of Polyoxometalate Composite Agarose Films
Author(s) -
Nogueira Helena I. S.,
Bornes Carlos,
Fateixa Sara,
Trindade Tito
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201801157
Subject(s) - chemistry , polyoxometalate , raman spectroscopy , fluorescence , composite number , photochemistry , agarose , nanotechnology , chemical engineering , polymer chemistry , organic chemistry , optics , composite material , catalysis , chromatography , physics , materials science , engineering
Composite agarose films were prepared with Eu III containing polyoxometalates, in particular the organic‐inorganic hybrid [Eu(W 5 O 18 ) 2 (pic) 4 ] 13– (Hpic = 3‐hydroxypicolinic acid) and a Mo blue Eu III derivative. The latter compound shows interesting Eu III based photoluminescence properties, described for a molybdenum blue compound for the first time. Imaging of optical properties and morphology of the films was explored by Raman and fluorescence measurements in a confocal microscopy system, together with the AFM profile. Raman and fluorescence imaging are powerful tools for the characterization of the films, in particular their chemical composition and homogeneity at the micrometric scale.