Study of Composite Materials in Nanometric Scale

• Grant number: 16/12576-2
• Support Opportunities: Regular Research Grants
• Start date: February 01, 2017
• End date: July 31, 2019
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Maria Cecília Barbosa da Silveira Salvadori
• Grantee: Maria Cecília Barbosa da Silveira Salvadori
• Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This project aims to produce and characterize composites formed by metallic nanoparticles in insulating polymeric matrix. The main motivation and justification of this project is the understanding and control of the metal nanoparticles formation in insulating polymeric matrix that will help design and develop new materials for various applied areas, mainly in the areas of optics and sensing. For this purpose, the techniques that will be used consist of transmission electron microscopy (TEM) and RBS (Rutherford Backscattering Spectrometry). Through TEM we aim obtain the size distribution of nanoparticles and their dispersion on the volume of the substrate. The RBS technique will be used for measuring the metal implanted dose and depth profile of the elements present in the sample. The results of these characterizations are of fundamental importance to verify the validity of theoretical models for the clusters formation, as proposed in the literature that is detailed in the project. An approach that will also be used in this project is the numerical simulation using the TRIDYN program that provides the expected profile for the distribution of atoms implanted in the substrate. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SALVADORI, MARIA CECILIA; TEIXEIRA, FERNANDA DE SA; CATTANI, MAURO; BROWN, IAN G.. Self-assembled Au and Pt nanoparticles in Poly(methyl methacrylate). MICROSCOPY RESEARCH AND TECHNIQUE, v. 84, n. 7, JAN 2021. (16/12576-2)