Multianalytical Study of Historical ...
Document type :
Article dans une revue scientifique
Permalink :
Title :
Multianalytical Study of Historical Luminescent Lithopone for the Detection of Impurities and Trace Metal Ions
Author(s) :
Bellei, Sara [Auteur]
CNR Istituto di Fotonica e Nanotecnologie [Milano] [IFN]
Nevin, Austin [Auteur]
CNR Istituto di Fotonica e Nanotecnologie [Milano] [IFN]
Cesaratto, Anna [Auteur]
Dipartimento di Fisica [Politecnico Milano] [POLIMI]
Capogrosso, Valentina [Auteur]
Dipartimento di Fisica [Politecnico Milano] [POLIMI]
Vezin, Herve [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Tokarski, Caroline [Auteur]
Miniaturisation pour la Synthèse, l’Analyse et la Protéomique - UAR 3290 [MSAP]
Valentini, Gianluca [Auteur]
Dipartimento di Fisica [Politecnico Milano] [POLIMI]
Comelli, Daniela [Auteur]
Dipartimento di Fisica [Politecnico Milano] [POLIMI]
tokarski [Auteur]
CNR Istituto di Fotonica e Nanotecnologie [Milano] [IFN]
Nevin, Austin [Auteur]
CNR Istituto di Fotonica e Nanotecnologie [Milano] [IFN]
Cesaratto, Anna [Auteur]
Dipartimento di Fisica [Politecnico Milano] [POLIMI]
Capogrosso, Valentina [Auteur]
Dipartimento di Fisica [Politecnico Milano] [POLIMI]
Vezin, Herve [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Tokarski, Caroline [Auteur]
Miniaturisation pour la Synthèse, l’Analyse et la Protéomique - UAR 3290 [MSAP]
Valentini, Gianluca [Auteur]
Dipartimento di Fisica [Politecnico Milano] [POLIMI]
Comelli, Daniela [Auteur]
Dipartimento di Fisica [Politecnico Milano] [POLIMI]
tokarski [Auteur]
Journal title :
Analytical Chemistry
Abbreviated title :
Anal. Chem.
Volume number :
87
Pages :
6049-6056
Publisher :
American Chemical Society (ACS)
Publication date :
2015-05-28
ISSN :
1520-6882
English keyword(s) :
Impurities
Dyes and pigments
Luminescence
Electron paramagnetic resonance spectroscopy
Transition metals
Dyes and pigments
Luminescence
Electron paramagnetic resonance spectroscopy
Transition metals
HAL domain(s) :
Chimie/Chimie théorique et/ou physique
English abstract : [en]
We have explored the performance of an integrated multianalytical approach to the analysis of a series of microsamples of historical lithopone (a coprecipitate of ZnS + BaSO4) produced at the beginning of the 20th century, ...
Show more >We have explored the performance of an integrated multianalytical approach to the analysis of a series of microsamples of historical lithopone (a coprecipitate of ZnS + BaSO4) produced at the beginning of the 20th century, based on the combination of spectrally- and lifetime-resolved photoluminescence (PL) microscopy imaging and electron paramagnetic resonance (EPR) spectroscopy. Multispectral imaging of the PL emission from microsamples revealed the presence of different luminescence centers emitting in the visible spectrum, which we have hypothesized as trace Cu and Mn impurities unintentionally introduced into the ZnS crystal lattice during synthesis, which act as deep traps for electrons. Time-resolved PL imaging analyses highlighted the microsecond decay-kinetic behavior of the emission, confirming the trap state nature of the luminescence centers. EPR confirmed the presence of Cu and Mn, further providing information on the microenvironment of defects in the ZnS crystalline lattice related to specific paramagnetic ions. The multianalytical approach provides important insights into the historical synthesis of lithophone and will be useful for the rapid screening and mapping of impurities in complex semiconductor pigments and other artists’ materials.Show less >
Show more >We have explored the performance of an integrated multianalytical approach to the analysis of a series of microsamples of historical lithopone (a coprecipitate of ZnS + BaSO4) produced at the beginning of the 20th century, based on the combination of spectrally- and lifetime-resolved photoluminescence (PL) microscopy imaging and electron paramagnetic resonance (EPR) spectroscopy. Multispectral imaging of the PL emission from microsamples revealed the presence of different luminescence centers emitting in the visible spectrum, which we have hypothesized as trace Cu and Mn impurities unintentionally introduced into the ZnS crystal lattice during synthesis, which act as deep traps for electrons. Time-resolved PL imaging analyses highlighted the microsecond decay-kinetic behavior of the emission, confirming the trap state nature of the luminescence centers. EPR confirmed the presence of Cu and Mn, further providing information on the microenvironment of defects in the ZnS crystalline lattice related to specific paramagnetic ions. The multianalytical approach provides important insights into the historical synthesis of lithophone and will be useful for the rapid screening and mapping of impurities in complex semiconductor pigments and other artists’ materials.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Collections :
Research team(s) :
Propriétés magnéto structurales des matériaux (PMSM)
Submission date :
2021-06-17T13:54:35Z
2021-09-23T13:25:57Z
2021-09-23T13:25:57Z