Nanoestructures
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Growth and electrochemical stability of self-organized TiO2nanotubes on Ti-2 grade and orthopedic Ti6Al4V alloy for biomedical application
Titanium and its alloys are biomaterials used in endosseous implants, due to desirable mechanical properties, high corrosion resistance and biocompatibility. Using electrochemical anodization technique these materials can be recovered with self-organized TiO2 nanotubes layer resulting in increased specific surface area and probable bioactivity improvement.
Matéria (Rio J.). Publicado em: 2014-03
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2. FluorescÃncia induzida por plasmons superficiais em corantes
Plasmons, collective oscillations of conduction electrons, may have large influence on the optical properties of metallic microstructures and nanoestructures, and can be exploited in photonic devices. In this work, we produce metallic thin films by the method of evaporation at low pressure and characterized them by optical reflectivity measurements. The film
Publicado em: 2007
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3. NANOESTRUTURAS DE ZNO ALTAMENTE LUMINESCENTE: SYNTESIS Y CARACTERIZACIÓN / NANOESTRUTURAS DE ZNO ALTAMENTE LUMINESCENTE: SÍNTESE E CARACTERIZAÇÃO / HIGHLY LUMINESCENT ZNO NANOESTRUCTURES: SYNTHESIS AND CHARACTERIZATION
Zinc Oxide hás been synthesized by evaporation, condensation, and oxidation of methallic zinc under atmospheric pressure. Two methods of synthesis, denominated stationary and dynamic, were developed in this study. In the stationary system has the local control of temperature and a alumina tube-furnace reactor has been used. Zn was evaporated at 900-1000 C i
Publicado em: 2007
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4. Desenvolvimento experimental de uma camara para medida de emissão de eletrons por catodos frios / Development of a vacuum set-up for the measurement of cold cathode field electron emission
Foi desenvolvida uma câmara de vácuo para estudo das propriedades elétricas de emissão de elétrons por catodos frios de vários materiais de interesse tecnológico, por exemplo, diamante dopado, filmes de carbono diamantífero e silício. Na parte experimental realizamos um sistema de alto vácuo (bomba mecânica mais a bomba difusora), um sistema de po
Publicado em: 2005
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5. Estudo do controle do crescimento de nanoestruturas semicondutoras do tipo CdTe e CdTeS em matrizes vitreas borosilicatos
In this thesis we study the growth kinectics of semiconductor nanoestructures in borosilicate glass matrix. We study the fabrication methods which allow us to obtain very low size dispersion and deep trap defects free nanostructures. We use small angle x-rays scattering (SAXS) techniques with synchrotron light to study the samples growth in situ, absorption
Publicado em: 1996