Financiamiento para pequeñas y medianas empresas (PYME): el caso de Alemania, enseñanzas para Argentina

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El Estado en países desarrollados: la acción pública en Alemania, Estados Unidos, Francia y Japón: enseñanzas para América Latina

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CaCu3Ti4O12 thin films with non-linear resistivity deposited by RF-sputtering

Calcium copper titanate, CaCu3Ti4O12, CCTO, thin films with polycrystalline nature have been deposited by RF sputtering on Pt/Ti/SiO2/Si (100) substrates at a room temperature followed by annealing at 600 °C for 2 h in a conventional furnace. The CCTO thin film present a cubic structure with lattice parameter a = 7.379 ±0.001 Å free of secondary phases. The observed electrical features of CCTO thin films are highly dependent on the [CaO12], [CaO 4], [CuO11], [CuO11Vx 0] and [TiO5.VO] clusters. The CCTO film capacitor showed a dielectric loss of 0.40 and a dielectric permittivity of 70 at 1 kHz. The J-V behavior is completely symmetrical, regardless of whether the conduction is limited by interfacial barriers or by bulk-like mechanisms. © 2013 Elsevier B.V. All rights reserved.

Structural transition of ZnO thin films produced by RF magnetron sputtering at low temperatures

Zinc oxide (ZnO) thin films were prepared using reactive radio-frequency magnetron sputtering of a pure metallic zinc target onto glass substrates. The evolution of the surface morphology and the optical properties of the films were studied as a function of the substrate temperature, which was varied from 50 to 250 C. The surface topography of the samples was examined using atomic force microscopy (AFM), and their optical properties were studied via transmittance measurements in the UV-Vis-NIR region. DRX and AFM analyses showed that the surface morphology undergoes a structural transition at substrate temperatures of around 150 C. Actually, at 50 C the formation of small grains was observed while at 250 C the grains observed were larger and had more irregular shapes. The optical gap remained constant at ∼3.3 eV for all films. In the visible region, the average optical transmittance was 80 %. From these results, one can conclude that the morphological properties of the ZnO thin films were more greatly affected by the substrate temperature, due to mis-orientation of polycrystalline grains, than were the optical properties. © 2013 Springer Science+Business Media New York.

Las leyes de descontaminación del aire en la República Federal de Alemania: elementos para la discusión

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Preparação e caracterização óptica de filmes nanocristalinos de GaAs:H depositados por RF magnetron sputtering

Pós-graduação em Ciência e Tecnologia de Materiais - FC

Capacitación para la gestión de recursos hídricos en la República Federal de Alemania

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Experiencia de la República Federal de Alemania en materia de gestión de residuos sólidos: notas de viaje

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Nuevos conceptos de la política regional de desarrollo en Alemania: aportes para la discusión latinoamericana

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Rol de Europa en los programas de desarrollo económico de América Latina: charla pronunciada durante la feria de Hannover, Alemania, por el Dr. Prebisch, Director Principal a cargo de la Secretaría Ejecutiva de la CEPAL

También en: Comercio Exterior, México, DF, No 5, p. 312-314, mayo 1962

BMZ, Ministerio Federal de Cooperación Económica y Desarrollo de Alemania y CEPAL, Comisión Económica para América Latina y el Caribe: un modelo de cooperación para el siglo XXI

Prólogo de Alicia Bárcena (CEPAL) y Dorothee Fiedler (BMZ)

Otimização do processo de deposição de filmes TiO2:Mn usando RF magnetron sputtering

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Feasibility of RF Sputtering and PIIID for production of thin films from red mud

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeito da pressão em filmes finos de ZnO:Al por RF Magnetron sputtering reativo

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)