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Static and dynamic self-assembly of inorganic nanoparticles

Grant number: 18/05159-1
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Start date: July 01, 2018
End date: August 09, 2020
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
Principal Investigator:Edson Roberto Leite
Grantee:João Batista Souza Junior
Host Institution: Centro Nacional de Pesquisa em Energia e Materiais (CNPEM). Ministério da Ciência, Tecnologia e Inovação (Brasil). Campinas , SP, Brazil
Associated research grant:13/07296-2 - CDMF - Center for the Development of Functional Materials, AP.CEPID
Associated scholarship(s):19/22216-1 - Out-of-equilibrium self-assembly of inorganic nanoparticles, BE.EP.PD

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)

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Scientific publications (6)
(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)
SOUZA JUNIOR, JOAO BATISTA; SCHLEDER, GABRIEL RAVANHANI; BETTINI, JEFFERSON; NOGUEIRA, ICAMIRA COSTA; FAZZIO, ADALBERTO; LEITE, EDSON ROBERTO. Pair Distribution Function Obtained from Electron Diffraction: An Advanced Real-Space Structural Characterization Tool. MATTER, v. 4, n. 2, p. 441-460, . (13/07296-2, 17/18139-6, 18/05159-1, 17/02317-2)
DE MATOS RODRIGUES, MURILLO HENRIQUE; RODRIGUEZ-GUTIERREZ, INGRID; OSPINA RAMIREZ, CARLOS ALBERTO; RODRIGO COSTA, CARLOS ALBERTO; BIFFE, CLEYTON ALEXANDRE; DE SOUZA JUNIOR, JOAO BATISTA; SODE SOUZAUZA, FLAVIO LEANDRO; LEITE, EDSON ROBERTO. Ideal dopant to increase charge separation efficiency in hematite photoanodes: germanium. JOURNAL OF MATERIALS CHEMISTRY A, v. 10, n. 25, p. 11-pg., . (13/07296-2, 18/05159-1, 17/02317-2)
DE LIMA, FELIPE C.; SCHLEDER, GABRIEL R.; SOUZA JUNIOR, JOAO B.; SOUZA, FLAVIO L.; DESTRO, FABRICIO B.; MIWA, ROBERTO H.; LEITE, EDSON R.; FAZZIO, ADALBERTO. Unveiling the dopant segregation effect at hematite interfaces. Applied Physics Letters, v. 118, n. 20, . (18/05159-1, 17/02317-2, 17/18139-6, 19/20857-0, 13/07296-2)
SOUZA JUNIOR, JOAO BATISTA; SCHLEDER, GABRIEL RAVANHANI; COLOMBARI, FELIPPE MARIANO; DE FARIAS, MARCELO ALEXANDRE; BETTINI, JEFFERSON; VAN HEEL, MARIN; PORTUGAL, RODRIGO VILLARES; FAZZIO, ADALBERTO; LEITE, EDSON ROBERTO. Pair Distribution Function from Electron Diffraction in Cryogenic Electron Microscopy: Revealing Glassy Water Structure. Journal of Physical Chemistry Letters, v. 11, n. 4, p. 1564-1569, . (17/02317-2, 13/07296-2, 17/18139-6, 18/05159-1)
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, . (13/07296-2, 18/05159-1)