Boron Doped Diamonds
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Contribuição para a sintese de diamante nanocristalino com dopagem de boro / Contribution towards the synthesis of boron doped nanocrystalline diamonds
This thesis presents a study of the growth and characterization of nano crystalline diamonds produced by the hot-filament chemical vapor deposition (CVD) with the introduction of boron during the growth process. Our objective was to produce samples with good electrical properties for field induced emission of electrons (FEE) to the vacuum. Characterization o
Publicado em: 2008
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2. Electron field emission from boron doped microcrystalline diamond and development of a new ultra high vacuum system / Emissão de eletrons por efeito de campo em diamante policristalino dopado com boro e desenvolvimento de um novo sistema de ultra alvo vacuo
Na primeira parte deste trabalho amostras de diamante poli-cristalino dopado com boro foram crescidas por deposição química a vapor assistida por filamento quente. As características de emissão de campo foram investigadas. A dopagem (NB) em amostras diferentes foi variada pelo controle da concentração B/C no fluxo de gases durante o processo de cresci
Publicado em: 2007
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3. Contribuições ao desenvolvimento de filmes de diamante microcristalino dopados com enxofre / Contributions to the development of sulphur doped microcrystalline diamond films
We present in this work the development of grown diamond films with sulphur addition. They had been grown by chemical deposition from the vapor phase (diamond CVD) using reactors of the type hot filament. For the diamond attainment with conduction of the n-type, we diluted different concentrations of carbon disulfide (CS2) in ethyl alcohol, whose vapor was d
Publicado em: 2007
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4. Contribuição para a sintese de diamante com dopagens de boro, nitrogenio ou enxofre / Study of diamond doping with boron, sulphur and nitrogen
We studied the diamond doping processes with introduction of doping impurities during the diamond growth in the chemical vapor deposition (CVD) technique, using a hot-filament reactor. Our research focused the use of boron, nitrogen or sulphur atoms in order to obtain diamond films with semiconductor properties of electronic (n-type) or hole (p-type) current
Publicado em: 2004