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Filmes delgados luminescentes obtidos a partir de hidroxicarbonatos de ítrio ativados por európio ou térbio
(Sociedade Brasileira de Química, 2014)
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties
(2019-01-15)
Abstract: This work reports the preparation of bacterial cellulose (BC) membranes with self-cleaning properties. SiO 2 @TiO 2 (anatase) spherical nanocomposites (around 50 nm in diameter) were prepared by sol–gel process ...
Poole-Frenkel effect in Er doped SnO2 thin films deposited by sol-gel-dip-coating
(Wiley-Blackwell, 2005-01-01)
Electrical properties of Er-doped SnO2 thin films obtained by sol-gel-dip-coating technique were measured. When compared to undoped tin dioxide, rare-earth doped films present much higher resistivity, indicating that Er3+ ...
Dip-coating deposition of BiVO4/NiO p–n heterojunction thin film and efficiency for methylene blue degradation
(2015-10-22)
This paper deals with a simple FTO/p–n heterojunction electrode assembly formed by BiVO4 and NiO thin films, where the precursor solution is obtained by solution combustion synthesis and precipitation in aqueous media ...
Fabrication and characterization of nanostructured porous silicon-silver composite layers by cyclic deposition : Dip-coating vs spin-coating
(2020-09-04)
Composites of nanostructured porous silicon and silver (nPSi-Ag) have attracted great attention due to the wide spectrum of applications in fields such as microelectronics, photonics, photocatalysis and bioengineering, ...
Er-doped silica-based waveguides prepared by different techniques: RF-sputtering, sol-gel and ion-exchange
(Kluwer Academic Publ, 2002-12-01)
Erbium-activated silica-based planar waveguides were prepared by three different technological routes: RF-sputtering, sol-gel and ion exchange. Various parameters of preparation were varied in order to optimize the waveguides ...
Er-doped silica-based waveguides prepared by different techniques: RF-sputtering, sol-gel and ion-exchange
(Kluwer Academic Publ, 2002-12-01)
Erbium-activated silica-based planar waveguides were prepared by three different technological routes: RF-sputtering, sol-gel and ion exchange. Various parameters of preparation were varied in order to optimize the waveguides ...