Search
Now showing items 1-10 of 50
Estudos de efeitos de spin em diodos de tunelamento ressonante do tipo-p
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Física, 2010-03-26)
The aim of this work was to complement the studies of the mechanisms of control of the degree of circular polarization of emission from resonant tunneling diodes p-type (RTD) by analyzing the optical properties and transport ...
Nanofios de Ge : síntese e dispositivos
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Física, 2012-03-06)
Abstract In this work, germanium nanowires' based devices were studied and developed and the influence of natural disorder on the electronic properties of these structures was also investigated. Parameters related to the ...
Propriedades de transporte eletrônico em filmes de diamante crescidos por deposição de vapores químicos.
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Física, 2007-02-27)
In this work it was investigated some fundamental properties of undoped and Borondoped
(p-type) synthetic diamond films. It was investigated the influence of the cleaning
process on the surface s quality in order to produce ...
Fabricação e caracterização de dispositivos baseados em nanofitas de Óxido de Estanho (SnO2)
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Física, 2012-08-06)
The structural and transport features of tin oxide nanobelts synthesized by the vapor-solid method combined with the carbothermal reduction process were investigated in this work. The samples synthesized were characterized ...
Influência da presença de líquidos iônicos no comportamento térmico, termo-mecânico e nas propriedades de transporte em membranas de policarbonato obtidas via casting
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Química, 2014-02-25)
New alternatives to the use of polymeric membranes as solid electrolyte in fuel cells have been considered , in order to find solutions to recurrent obstacles that limit the performance of these cells, the dependence of ...
Estudo da estrutura de complexos de polieletrólitos sobre as propriedades de transporte de água e sais
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Química, 2015-03-25)
Polyelectrolytes complexes (PECs) are defined as materials formed by combining oppositely charged polyelectrolytes together via ionic interaction. PECs have some unique physical properties such as non-solubility in common ...
Agentes mineralizadores e seus efeitos nas características morfológicas e físico-químicas de aluminas calcinadas
(Universidade Federal de São CarlosUFSCarPrograma de Pós-graduação em Ciência e Engenharia de MateriaisCâmpus São Carlos, 2015-08-31)
Calcination is an important step in the alumina production process, affecting the final properties of the resulting powder and the attained product. Over the previous decades, attempts have been conducted to understand ...
Propriedades magneto-óticas e de magneto-transporte de um diodo de tunelamento ressonante contendo Si δ - doping no poço quântico
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Física, 2011-03-11)
In this work, we have studied the transport and optical properties of GaAs = AlGaAs resonant tunneling diodes with Si delta-doping at the center of the quantum well. We have studied magneto-transport and polarized resolved ...
O estudo do limite de transporte interfilamentar de supercorrentes em amostras supercondutoras de BSCCO.
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Física, 2006-03-15)
In this work, we have studied the behavior of the line H*(T) in filamentary samples of BSCCO, which were grown by the LFZ technique, Laser Floating Zone. Previously studied in other specimens prepared by specific routes ...
Fabricação e caracterização elétrica de dispositivos orgânicos emissores de luz derivados de poli-p(fenilene vinilene) (ppv)
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-graduação em Física, 2010-03-16)
Molecularly doped polymers have been widely studied in recent years due to their electronic and optical properties, and application in the manufacture of opto-electronic devices, light emitting diodes (LED) and others. ...