Multianalytical Study of Historical ...
Type de document :
Article dans une revue scientifique
URL permanente :
Titre :
Multianalytical Study of Historical Luminescent Lithopone for the Detection of Impurities and Trace Metal Ions
Auteur(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]
Titre de la revue :
Analytical Chemistry
Nom court de la revue :
Anal. Chem.
Numéro :
87
Pagination :
6049-6056
Éditeur :
American Chemical Society (ACS)
Date de publication :
2015-05-28
ISSN :
1520-6882
Mot(s)-clé(s) en anglais :
Impurities
Dyes and pigments
Luminescence
Electron paramagnetic resonance spectroscopy
Transition metals
Dyes and pigments
Luminescence
Electron paramagnetic resonance spectroscopy
Transition metals
Discipline(s) HAL :
Chimie/Chimie théorique et/ou physique
Résumé en anglais : [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, ...
Lire la suite >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.Lire moins >
Lire la suite >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.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
CNRS
Collections :
Équipe(s) de recherche :
Propriétés magnéto structurales des matériaux (PMSM)
Date de dépôt :
2021-06-17T13:54:35Z
2021-09-23T13:25:57Z
2021-09-23T13:25:57Z