Static and dynamic self-assembly of inorganic nanoparticles

• Grant number: 18/05159-1
• Support type: Scholarships in Brazil - Post-Doctorate
• Effective date (Start): July 01, 2018
• Effective date (End): June 30, 2020
• Field of knowledge: Physical Sciences and Mathematics - Chemistry
• Principal Investigator: Edson Roberto Leite
• Grantee: João Batista Souza Junior
• Home Institution: Centro Nacional de Pesquisa em Energia e Materiais (CNPEM). Ministério da Ciência, Tecnologia, Inovações e Comunicações (Brasil). Campinas , SP, Brazil
• Associated research grant: 13/07296-2 - CDMF - Center for the Development of Functional Materials, AP.CEPID

Abstract

Self-assembly of inorganic nanomaterials can be highlighted as the next generation of nanoscience research related to nanoparticles. Whilst nanoparticles synthesis and applications still are extensively studied, self-assembly systems with strict 2D (superlattices) or 3D (supercrystals) structures controlled can present unique magnetic, electric or optic properties leading to new technological applications. The challenge on self-assembly is how to program, or plan, the nanoparticles individual properties to produce the desired nanostructure. While self-assembly system on equilibrium (static process) has been studied for decades, out-of-equilibrium systems, or dynamic self-assembly, remains on the early stage of research progress. Therefore, the objective of this project is joint together the knowledge on nanoparticles synthesis and characterization with studies on self-assembly of different nanoparticles, including process on equilibrium and out-of-equilibrium. Shape, size and size distribution controlled is required to program the interparticle interaction, a main issue to nanostructured self-assembly formation. Using magnetic fields during self-assembly experiments (dynamic self-assembly), the formation of large area superlattices or different 2D or 3D nanostructures will be studied. The characterization of magnetic, electric or optical properties for self-assembled nanostructures will be done comparing with the individual properties of nanoparticles (diluted systems) aiming several technological applications. (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)

NOGUEIRA, ANDRE ESTEVES; SANTOS SOARES, MARIO RODRIGO; SOUZA JUNIOR, JOAO BATISTA; OSPINA RAMIREZ, CARLOS ALBERTO; SOUZA, FLAVIO LEANDRO; LEITE, EDSON ROBERTO. Discovering a selective semimetal element to increase hematite photoanode charge separation efficiency. JOURNAL OF MATERIALS CHEMISTRY A, v. 7, n. 28, p. 16992-16998, JUL 28 2019. Web of Science Citations: 0.