Paulo C. de Sousa Filho
University of São Paulo
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Paulo C. de Sousa Filho.
Journal of Fluorescence | 2008
Paulo C. de Sousa Filho; Osvaldo A. Serra
A modification of the Pechini method was applied to obtain luminescent rare earth orthophosphates. The developed synthetic route is based on the ability of the tripolyphosphate anion (
Journal of the Brazilian Chemical Society | 2015
Paulo C. de Sousa Filho; Juliana F. Lima; Osvaldo A. Serra
Journal of Fluorescence | 2011
Ieda L. V. Rosa; Paulo C. de Sousa Filho; Cláudio R. Neri; Osvaldo A. Serra; Alberthmeiry Teixeira de Figueiredo; José Arana Varela; Elson Longo
{text{P}}_3 {text{O}}_{10}^{5 - }
Química Nova | 2014
Paulo C. de Sousa Filho; Osvaldo A. Serra
ACS Applied Materials & Interfaces | 2017
Paulo C. de Sousa Filho; Eric Larquet; Diana Dragoe; Osvaldo A. Serra; Thierry Gacoin
) to act both as a complexing agent and as an orthophosphate precursor. Heating of aqueous solutions containing RE3+, Eu3+,
Química Nova | 2011
Rodrigo Ferreira Silva; Edimar DeOliveira; Paulo C. de Sousa Filho; Cláudio R. Neri; Osvaldo A. Serra
Química Nova | 2015
Paulo C. de Sousa Filho; Osvaldo A. Serra
{text{P}}_3 {text{O}}_{10}^{5 - }
Journal of the Brazilian Chemical Society | 2015
Leandro Fontanetti Nascimento; Paulo C. de Sousa Filho; Juliana F. Lima; Osvaldo A. Serra
Química Nova | 2010
Renata Figueredo Martins; Cláudio R. Neri; Paulo C. de Sousa Filho; Osvaldo A. Serra; Kleber T. de Oliveira
, citric acid, and ethylene glycol led to polymeric resins. The ignition of these resins at different temperatures yielded luminescent orthophosphates. The produced nanosized phosphors (YPO4:Eu3+, (Y,Gd)PO4:Eu3+, and LaPO4:Eu3+) were analyzed by infrared and luminescence spectroscopies, X-ray diffractometry, and scanning electron microscopy.
Revista Virtual de Química | 2015
Osvaldo A. Serra; Juliana Fonseca de Lima; Paulo C. de Sousa Filho
Light and rare earths (RE) have a long lived relationship that dates from the discoveries of these elements in the nineteenth century. Since then, the increasing comprehension of their spectroscopic properties conducted to a wide and alluring literature about light absorption and emission by this particular and fascinating group. For more than 50 years, RE-containing solid-state optical materials have undoubtfully been an important subject for the development of more efficient lighting, visualization, communication and health everyday applications. Therefore, this review introduces the spectroscopic properties of rare earth materials and their applications, with a brief discussion of the main mechanisms of light absorption and emission from a 4f elements inorganic physical chemistry perspective. Special attention is devoted to the use of these elements in systems concerning photoprotection and to the fundamentals of visible light generation for lighting and visualization.