Browsing by Subject "Semiconductors"
Now showing items 1-7 of 7
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Platforms based on semiconductors for application in quantum computing
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, Câmpus São Carlos, 02/06/2023)This thesis is composed of three parts. In the first part, a study of transport in semiconductor nanowires is carried out, in which the multichannel scattering occurs in a certain finite region, providing a reentrance in ... -
Análise dos efeitos de diferentes atmosferas sobre a fotocondutividade do Co3O4
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 22/09/2022)In this monograph, the effects of different atmospheres on the photoconductivity of Co3O4 were analyzed. For this purpose, with a Co3O4 sample set inside a cryostat filled with the selected atmosphere, its photoresponse ... -
Propriedades eletrônicas de nanofios semicondutores de Fosfeto de Zinco (Zn3P2)
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, Câmpus São Carlos, 20/04/2018)Zinc phosphide Zn3P2 nanowires with excellent crystalline quality were grown using the Vapor-Liquid-Solid (VLS) method with gold nanoparticles as catalysts. Single nanowire based devices were fabricated with ohmic nickel ... -
Contraste entre propriedades optoeletrônicas em estruturas de tunelamento ressonante n-i-n baseadas em GaAs
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, Câmpus São Carlos, 15/05/2019)Resonant Tunneling Diodes (RTDs) are semiconductor devices usually composed of two barrier structures embedding a single quantum well (QW) and highly doped layers in its extremities. Under an applied bias voltage, the ... -
Otimizando a eficiência de células solares baseadas em nanoestruturas semicondutoras quaternárias
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, Câmpus São Carlos, 28/02/2020)Solar cells composed of semiconductor materials with gap energies and different structures, commonly known as Multijunction, have been the record holders for efficiency in converting solar to electric energy in recent ... -
Montagem de um sistema de micro-PL em baixas temperaturas para o estudo de semicondutores bidimensionais
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, Câmpus São Carlos, 28/02/2020)Transition metal dicalcogenides (TMDs) are materials that have been attracted great attention in recent years, both from the point of view of fundamental physics and for a new generation of optoelectronic and spintronic ... -
Carrier dynamics of low-dimensional semiconductors: from quantum wells and quantum dots to resonant tunneling devices
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Física - PPGF, Câmpus São Carlos, 22/07/2021)This thesis aims to study heterostructures and devices that play a fundamental role in modern nanoelectronic technologies, focusing on group III-V semiconductor materials, especially arsenide-based systems, for photodetection ...