Rare earth based Layered Double Hydroxides for applications as thermometers

• Grant number: 24/14963-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: October 01, 2024
• End date: September 30, 2025
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Danilo Mustafa
• Grantee: Saulo Santos de Aguiar
• Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 22/01314-8 - Study of layered double hydroxide (LDH) as potential bifunctional photocatalyst, AP.R

Abstract

LDH systems have a versatility in their composition that can represent an advantage in the introduction of different polyvalent ions in their layers. This characteristic is very important for certain applications. Rare earth ions (TR3+) can be introduced into the original structure of LDHs resulting in the formation of a TR3+-based material with optimized optical properties. Some TR3+ are known for their luminescent properties being sensitive to temperatures, i.e., it is possible to monitor the temperature variation of a medium by observing the luminescence of materials based on these ions.The use of luminescent thermometers presents an excellent relationship between temperature and luminescence and consequently the possibility of obtaining the temperature of a given process without direct contact.Therefore, the proposal of this work is to prepare LDHs with TR3+ ions and study the relationship between temperature and luminescence of these materials.