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Patterning of the Surface Electrical Potential on Chalcogenide Glasses by a Thermoelectrical Imprinting Process

hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorALVARADO, Ricardo
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorKARAM, Lara
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDAHMANI, Redouane
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorLEPICARD, Antoine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCALZAVARA, Florian
hal.structure.identifierInstitut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
dc.contributor.authorPIARRISTEGUY, Andréa
hal.structure.identifierInstitut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
dc.contributor.authorPRADEL, Annie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorADAMIETZ, Fréderic
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFARGIN, Evelyne
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorCHAZOT, Matthieu
hal.structure.identifierUniversity of Central Florida [Orlando] [UCF]
dc.contributor.authorRICHARDSON, Kathleen
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorVELLUTINI, Luc
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDUSSAUZE, Marc
dc.date.issued2020
dc.identifier.issn1932-7447
dc.description.abstractEnThe development of novel sensing systems requires breakthroughs in the conception of multifunctional materials. In this sense, while extensive research has been dedicated to the individual tuning of the electrical or optical properties of different materials, the combination of both features would result in a promising field of research that would further extend opportunities for engineering novel function in sensor geometries. In the present work, we employed a highly attractive optical material for mid-infrared (MIR) sensing (chalcogenide glasses, ChG) and focused on the spatial control of its surface electrical potential via a thermoelectrical imprinting process. Different glass compositions based on the system Ge-Sb-S-Na were prepared by varying the sulfur stoichiometry and the sodium content. Each glass was thermally poled using electrodes with specific patterns, and subsequent structural modifications and surface electrical potential were then evaluated via Raman spectroscopy and Kelvin Probe Force Microscopy (KPFM). Raman cartographies show structural modifications attributed to alkali depletion following the patterns of the electrodes used for the imprinting process. Furthermore, KPFM measurements show clearly defined motifs on the electrical potential which are associated to charges implanted into the glass matrix. It was shown that the surface potential can vary in sign within an amplitude range of 10V and exhibit patterning at the micrometer scale. We observed that the efficiency of the surface
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enSurface potential
dc.subject.enChalcogenide glasses
dc.subject.enpoling
dc.subject.englass structure
dc.title.enPatterning of the Surface Electrical Potential on Chalcogenide Glasses by a Thermoelectrical Imprinting Process
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.jpcc.0c06507
dc.subject.halChimie/Matériaux
dc.subject.halChimie/Chimie théorique et/ou physique
dc.description.sponsorshipEuropeCentre for functional and surface-functionalized glasses
bordeaux.journalJournal of Physical Chemistry C
bordeaux.page23150-23157
bordeaux.volume124
bordeaux.issue42
bordeaux.peerReviewedoui
hal.identifierhal-02977422
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02977422v1
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