Investigation of growth mechanisms and properties of photoluminescent Ag2WO4

• Grant number: 12/17500-3
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• Start date: October 09, 2012
• End date: November 30, 2012
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Elson Longo da Silva
• Grantee: Elson Longo da Silva
• Visiting researcher: Andre Perrin
• Visiting researcher institution: Université de Rennes 1, France
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Associated research grant: 08/57872-1 - National Institute for Materials Science in Nanotechnology, AP.TEM

Abstract

This project proposes to investigate the mechanisms of growth and photoluminescent properties of nanocrystals of silver tungstate (Ag2WO4) synthesized by hydrothermal microwave, on the participation of PhD students and postdoc. On this occasion, Prof.. Andre Perrin participate actively in the discussions of the mechanisms of photoluminescence and begin making an international article. The synthesis of nanocrystals Ag2WO4 be performed from dilute aqueous solutions of salts of departure. The mechanisms of growth of these crystals in suspension and processed in the system hydrothermal microwave will be investigated in more detail. The nanocrystals obtained are characterized by X-ray diffraction, Raman and infrared vibrational. The optical properties of these nanocrystals are investigated by electronic spectroscopy in the ultraviolet-visible (UV-vis) and photoluminescence measurements. (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)

RAUBACH, CRISTIANE W.; POLASTRO, LISANIAS; FERRER, MATEUS M.; PERRIN, ANDRE; PERRIN, CHRISTIANE; ALBUQUERQUE, ANDERSON R.; BUZOLIN, PRESCILA G. C.; SAMBRANO, JULIO R.; DE SANTANA, YURI B. V.; VARELA, JOSE A.; et al. Influence of solvent on the morphology and photocatalytic properties of ZnS decorated CeO2 nanoparticles. Journal of Applied Physics, v. 115, n. 21, JUN 7 2014. (10/19484-0, 12/17500-3)