Inorganic pigments doped with tris(pyrazol-1-yl)borate lanthanide complexes: A photoluminescence study

Autor: Francesco Enrichi, Giulia Gheno, Renzo Ganzerla, Marco Bortoluzzi
Přispěvatelé: Gheno, Giulia, Bortoluzzi, Marco, Ganzerla, Renzo, Enrichi, Francesco
Rok vydání: 2014
Předmět:
Lanthanide
Atomic and Molecular Physics
and Optic
Materials science
Photoluminescence
Cultural heritage restoration
Inorganic chemistry
Biophysics
chemistry.chemical_element
Inorganic pigments
Condensed Matter Physic
Biochemistry
Tris(pyrazol-1-yl)borate
RADIATIVE LIFETIME
chemistry.chemical_compound
Pigment
CHEMISTRY
Atomic and Molecular Physics
Lanthanides
Lanthanides
Tris(pyrazol-1-yl)borate
Photoluminescence
Inorganic pigments
Cultural heritage restoration
HIGHLY SYMMETRICAL COMPOUNDS
X-RAY CRYSTAL
ELECTRONIC-STRUCTURES
F-ELEMENTS
MOLECULAR-STRUCTURE
PARAMETRIC ANALYSIS
RADIATIVE LIFETIME
UP-CONVERSION
LUMINESCENCE
CHEMISTRY
F-ELEMENTS
PARAMETRIC ANALYSIS
Homoleptic
Boron
Chrome yellow
Settore CHIM/03 - Chimica Generale e Inorganica
Atomic and Molecular Physics
and Optics
Condensed Matter Physics
Chemistry (all)
Doping
Inorganic pigment
Malachite
General Chemistry
HIGHLY SYMMETRICAL COMPOUNDS
ELECTRONIC-STRUCTURES
chemistry
X-RAY CRYSTAL
visual_art
UP-CONVERSION
LUMINESCENCE
visual_art.visual_art_medium
and Optics
MOLECULAR-STRUCTURE
Zdroj: Journal of Luminescence. 145:963-969
ISSN: 0022-2313
DOI: 10.1016/j.jlumin.2013.09.027
Popis: The inorganic pigments malachite, Egyptian blue, Ercolano blue and chrome yellow have been doped with the neutral homoleptic Ln(III) complex Ln(Tp) 3 (Ln=Eu, Tb; Tp=hydrotris(pyrazol-1-yl)borate) in the presence of arabic gum or acrylic emulsion as binders, in order to obtain photoluminescent materials of interest for cultural heritage restoration. The doped pigments have shown emissions associated to f – f transitions in the visible range upon excitation with UV light. Thermal and UV-light ageings have been carried out. In all the cases the photoluminescent behaviour is maintained, but in the cases of acrylic-based paints emission spectra and lifetimes are strongly influenced by thermal treatments. The choice of binder and pigments influences the photoluminescent behaviour of the corresponding film paints.
Databáze: OpenAIRE
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