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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Preparação de filmes policristalinos de GaN pela técnica de sputtering reativo a baixas temperaturas de substrato

Carvalho, Adriano Vieira de [UNESP] 23 June 2009 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:23:30Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-06-23Bitstream added on 2014-06-13T19:29:31Z : No. of bitstreams: 1 carvalho_av_me_bauru.pdf: 1153959 bytes, checksum: d1140cdf287a17bba3b0a2bcf3f995eb (MD5) / Descreve-se a preparação de várias amostras de filmes finos de Nitreto de Gálio (GaN), depositados sobre diferentes tipos de substratos pela utilização da técnica de RF-Magnetron Sputtering Reativo, utilizando-se atmosfera de nitrogênio ('N POT. 2') com diferentes temperaturas de substrato (< 400ºC). As amostras foram caracterizadas estruturalmente pelo uso da técnica de difração de raio-X (DRX), permitindo a obtenção de informações sobre tamanhos de cristalito, padrões de texturação e parâmetros de rede. A ocorrência de textura de orientação bem definida e a relação desta com as condições do alvo utilizado são analisadas no trabalho. / The preparation of several samples of Gallium Nitride (GaN) thin films, deposited onto different kinds of substrates by Reactive RD - Magnetron Sputtering, in pure Nitrogen ('N POT. 2') atmosphere with different substrate temperatures (< 400ºC) is described. The samples were structurally characterized by the use of X-ray diffraction, allowing obtain of information about cristalite size, texture pattern, and lattice parameters. The occurence of orientation texture and its relationship with target conditions are analysed.

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