Functional Nano-objects Encapsulated in Porous - Montpellier, France - Laboratoire Charles Coulomb - Université de Montpellier

Description

Functional nano-objects encapsulated in porous nanoplatforms: physical properties under confinement:

• Réf

-
ABG-118241

• Stage master 2 / Ingénieur
• Durée 5 mois
• Salaire net mensuel gratification de stage (4,05 € par heure) 21/11/2023
• Laboratoire Charles Coulomb
• Université de Montpellier
• Lieu de travail
• Montpellier Occitanie France
• Champs scientifiques
• Physique
• Chimie
• Matériaux
• Mots clés nanoporous silica, luminescent probe, confinement, hybrid materials, vibrational micro spectroscopies, nanothermometry 15/01/2024
  Établissement recruteur:
  Site web:

Laboratoire Charles Coulomb

• Université de Montpellier

Le Laboratoire présente un large éventail de thématiques allant de la Physique théorique la plus mathématique à la Physico-Chimie et la Biophysique, avec un socle de recherches théoriques et expérimentales consacrées à la Matière Condensée et aux Nanosciences.

Ses recherches se situent souvent aux interfaces avec la Chimie, les Sciences du Vivant et l'Électronique.

Le L2C dispose d'un ensemble de techniques expérimentales de haut niveau, en particulier une plateforme de spectroscopies optiques, unique en termes de performances, dans le contexte national.

Laboratoire de recherche fondamentale, le L2C est néanmoins au cœur de nombreux partenariats industriels et recherches à visées applicatives conduisant au dépôt de brevets, voire à la création de startups.

Description:


porous nanoplatforms:
physical properties under confinement
Context

In particular, such nanoplatforms are expected to bring extra reliability to the sensors, thanks to the confinement of the guest luminescent emitter within spherical porous silica hollow nanoparticles host.

Moreover, such silica or hybrid silica guests offer a great versatility through the control of wall thickness and composition.

The master project will be dedicated to
1/the sudy of the porous nano containers having different size, thickness, composition, and the influence of these parameters on the accessible porosity This part of the work will be performed in collaboration the Gerhardt chemistry institute of Montpellier (Dr. M. Wong Chi Man)

2/the study of the impact of the confinement (shell thickness, nature, structure) on the luminescent properties of the guest.

the experimental study will involve complementary technics to gain information of the structure and properties of the confinment layer : FTIR, Raman, TEM, SAXS, BET, NMR

the Master project will be developed in the nanostructure group in L2C (UM, Montpellier) with the benefits of the expertise of the group on vibrational spectroscopies and will involve complementary expertise through local collaborators from ICGM who master the synthesis of hybrid silica with high variability of morphologies [5]

The luminescent nanothermometric measurements will be led in collaboration with the Physics Department of the University of Aveiro (CICECO, Professor Luis Carlos).

and Portuguese collaborators, recognized in the field of luminescent materials involving lanthanides.

References
[1] Lanthanide-based luminescent molecular thermometers
C. D. S. Brites, S. Balabhadra, Luís D. Carlos, Adv. Optical Mater. 2019, /adom
[2] Upconverting Nanoparticles Working As Primary Thermometers In Different Media
S. Balabhadra, M. L. Debasu, C. D. S. Brites, R. A. S. Ferreira, L. D. Carlos, J. Phys. Chem. C 2017, 121, 13962
[3] Reliability of rare-earth-doped infrared luminescent nanothermometers
L. Labrador-Páez, M. Pedroni, A. Speghini, J. García-Solé, P. Haro-González, D. Jaque, Nanoscale, 2018, 10, 22319.
[4] Eu3+-Based Bridged Silsesquioxanes for Transparent Luminescent Solar Concentrators
V. T. Freitas, L. Fu, A. M. Cojocariu, X. Cattoën, J. R. Bartlett, R. Le Parc, J.L. Bantignies, M. Wong Chi Man, P. S. André, R. A. S. Ferreira, L. D. Carlos ACS Appl. Mater. Interfaces, 2015, 7, 8770.
[5] Thèses Albane Birault, ENSCM-UM, décembre 2018


Profil:

Profile (level bac+4,5)

the student
has to be currently registed at the university for 2023/2024 in a Master (2) degree in physics, physics and chemistry, materials or a final year of engineering diploma related to materials.

Experimental skills are expected.


Prise de fonction:

• 01/02/2024