Diamond Doping
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Boron Doped Ultrananocrystalline Diamond Films on Porous Silicon: Morphological, Structural and Electrochemical Characterizations
Boron doped ultrananocrystalline diamond (BDUND) films were grown and characterized on porous silicon (PS) substrates. PS samples were prepared from n-type monocrystalline silicon wafers (100) with 1-20 Ω.cm of resistivity, by electrochemical etching, using HF-acetonitrile solution as electrolyte. BDUND films were grown by Hot Filament Chemical Vapor Deposi
Mat. Res.. Publicado em: 24/11/2015
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2. Estudo e aplicação das propriedades elétricas, térmicas e mecânicas de materiais amorfos piezoresistivos em transdutores de pressão. / Study and application of eletrical properties, thermal and mechanical of amorphus matherials in piezoresistive.
This tesis presents the piezoresistivity theoretical and experimental study for two materials with amorphous structure. The first material is the Diamond Like Carbon and the other is the Indium Tin Oxide. The work includes the bibliographic study, theoretical and practical design of structures for testing individual and piezoresistors configured in bridge, i
Publicado em: 2009
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3. 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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4. Electroanalytical determination of nitrofurantoin (NFT) in drug and biological fluids using diamond electrode doped with boron / DeterminaÃÃo eletroanalÃtica de nitrofurantoÃna (NFT) em fÃrmaco e em fluido biolÃgico utilizando eletrodo de diamante dopado com boro
Este trabalho apresenta o estudo da quantificaÃÃo de nitrofurantoina (NFT) utilizando os filmes de diamante dopados com boro como material eletrÃdico. Estudos preliminares utilizando voltametria cÃclica (VC) mostraram que o mecanismo de reduÃÃo da nitrofurantoina (NFT) envolve adsorÃÃo e à influenciado pelo pH, o nÃvel de dopagem de boro no eletrod
Publicado em: 2008
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5. 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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6. 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
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7. Origin, state of the art and some prospects of the diamond CVD
A short review on the diamond CVD origin, together with its state of the art and some prospects was given. New hybrid methods of the diamond CVD permit to gain 1.2 to 6 times of growth rate in comparison with ordinary diamond CVD's. Recent results on n-type diamond film synthesis through phosphorus doping in the course of the CVD process are briefly discusse
Brazilian Journal of Physics. Publicado em: 2000