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Vapor-Liquido -S ólido (VLS)

Universidade Federal do Amazonas Faculdade de tecnologia Engenharia de Materiais. Vapor-Liquido -S ólido (VLS). Diogo Padilha Oliveira Manaus 2013. 1. Mecanismo. Figura 1 Crescimento de SiNW por Vapor- Sólido - Líquido (VLS). 2. Vantagens.

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Vapor-Liquido -S ólido (VLS)

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  1. Universidade Federal do Amazonas Faculdade de tecnologia Engenharia de Materiais Vapor-Liquido-Sólido(VLS) Diogo Padilha Oliveira Manaus 2013

  2. 1. Mecanismo Figura 1 Crescimento de SiNWpor Vapor-Sólido-Líquido (VLS).

  3. 2. Vantagens • Síntese de grandevariedade de NW semicondutores • Relativobomcontrole do diâmetro Figura 2 Histograma de crescimento de SiNW com deposição de 5, 10, 20 30 nm de ouro.

  4. 3. Desvantagens • Controle do tamanhodagota • Síntese de nanopartículasmetálicas • Laser-assisted VLS • Controledapropriedadesaolongo do eixo do NW • Ultra-alto vácuo • Utilização de Au • Baixa produtividade

  5. 4. Artigo Transition Metal Oxide Core-Shell Nanowires: Generic Synthesis and Transport Studies Song Han, Chao Li, Zuqin Liu, Bo Lei, Daihua Zhang, Wu Jin, Xiaolei Liu, Tao Tang, and Chongwu Zhou*

  6. 4.1 Metodologia • Forno horizontal • Pó de Mg3N2 • Adição de monocristais (100) MgO • Revestimento com filme de Au de 1nm • 900 °C com fluxo de Ar

  7. 4.2 Resultado • Crescimento de MgO NW naregiãoexagonal • Au atuacomocatalizador Figura 3 Crescimento do NW emsubstrato de MgO (100). Figura 4 MgOnanowire.

  8. 5. Referências • S. Han, C. Li, Z. Liu, B. Lei, D. Zhang, W. Jin, X. Liu, T. Tang, C. Zhou: Transition metal oxide core-shell nanowires: Generic synthesis and transport studies, Nano Lett. 4, 1241–1246 (2004) • Y. Cui, L.J. Lauhon, M.S. Gudiksen, J. Wang, C.M. Lieber: Diameter-controlled synthesis of single crystal silicon nanowires, Appl. Phys. Lett. 78, 2214–2216 (2001) • X. Duan, C.M. Lieber: Laser-assisted catalytic growth of single crystal GaNnanowires, J. Am. Chem. Soc. 122, 188–189 (2000) • Springer handbook of nanotechnology. 2010. pg. 119.

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