Synthesis and characterization of silver nanoparticles via thermal treatment and laser irradiation

• Grant number: 19/17401-4
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: October 01, 2019
• End date: January 31, 2021
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Vinicius Tribuzi Rodrigues Pinheiro Gomes
• Grantee: Igor Ferreira Torquato
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

Microdispositives with new functionalities are attracting increasing attention due to their potential application in a variety of different technologies. In particular with regard to conductive systems that involve hybrids materials (organic/inorganic) with nanoparticles (NP) and polymers. These devices put together the versatility of polymers and the unique proprieties of metallic nanoparticles.In this project, nanoparticles will be incorporated into the polymer matrix by means of local synthesis via thermal treatment and/or laser irradiation of the sample. This methodology uses mainly physical processes and has the advantage of not involving the mixture of the resin with a suspension of nanoparticles, which can generate complications. In this way is dispensed an additional procedure to synthesize the NPs.The materials will be characterized by absorption spectrum measurements of samples submitted to different thermal treatments. The differences between them will be in parameters such as duration of the process, temperature to which the sample has been exposed and the amount of NP precursor added to the base resin.The student will have the opportunity to get in touch with standard preparations and characterizations techniques and will perform a qualitative and quantitative systematic study about the thermal and laser irradiation synthesis of nanoparticles in a polymer matrix. The results can be the base for the development of biosensors and flexible microdevices, for example.