Dopant Diffusion
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Sunlight-driven water splitting using hematite nanorod photoelectrodes
ABSTRACT The efficiency of nanostructures for photoelectrochemical water-splitting is fundamentally governed by the capability of the surface to sustain the reaction without electron trapping or recombination by photogenerated holes. This brief review will summarize the latest progress on hematite, designed with columnar morphology via chemical synthesis, fo
An. Acad. Bras. Ciênc.. Publicado em: 2018
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2. Analysis of thin bifacial silicon solar cells with locally diffused and selective back surface field
The aim of this work is to present the development and comparison of thin n+pp+ industrial bifacial silicon solar cells produced with the local screen-printed Al back surface field (BSF) to those with the selective BSF doped with aluminum-boron. To produce solar cells with selective BSF, the boron diffusion based on spin-on dopant was introduced in the proce
Mat. Res.. Publicado em: 09/09/2014
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3. Otimização e comparação de processos para formação do campo retrodifusor com boro em células solares
The aim of this thesis was to develop and compare methods for the formation of the back surface field and emitter with boron using n-type and p-type solar-grade Si-Cz wafers as well as analyze and optimize a manufacturing process of solar cells with structure n+pp+ and back surface field formed by boron. The highly doped p+ region was formed by spin-on depos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/03/2012
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4. Processos litográficos em filmes epitaxiais de compostos IV-VI para medidas Hall e o estudo da dopagem do telureto de chumbo com flureto de bário / Lithographic processes in epitaxial films of IV-VI compounds for Hall measurements and the study of lead telluride doping with barium flouride
The first part of the work dealt with the application of lithographical techniques to fabricate Hall geometry of IV-VI films grown on (111) BaF_2 substrates. A previous study of In diffusion in PbTe films confirmed the viability of using In as a metallic contact. During the lithographic process, some solutions were implemented to resolve the problems generat
Publicado em: 2009
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5. Dispositivo de armazenamento de energia utilizando polianilina e eletrolito polimerico
Recently, supercapacitors or electrochemical capacitors have brought renewed interest in the area of energy storage because of possible application in electric vehicles and electronic devices. The developments in this area require energy storage with a high density and short charge discharge times. Conductive polymers have advantages over metal oxides as ele
Publicado em: 2000
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6. ENHANCED DIFFUSION AND ELECTRICAL BEHAVIOR OF MISFIT DISLOCATIONS IN EPITAXIAL Si/Si(Ge)
This dissertation addresses enhanced or \"pipe\" diffusion of dopants along localized misfit dislocations (MD) using a \"model\" misfit dislocation structure at epitaxial Si/Si(Ge) interfaces and provides basic information on the merits of applicability of novel bandgap engineered devices. Pipe diffusion is modeled and explored to create pipe-like one dimens
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 1994