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UV laser controlled quantum well intermixing in InAlGaAs/GaAs heterostructures
(2007)
Abstract : The influence of surface irradiation of GaAs with a KrF excimer laser on the magnitude of the quantum well intermixing (QWI) effect has been investigated on GaAs/AlGaAs and GaAs/AlGaAs/InAlGaAs QWs heterostructures. ...
Contributions à l'avancement de techniques de caractérisation de semiconducteur au microscope électronique à balayage
(Université de Sherbrooke, 1998)
Dans le cadre de ce projet de doctorat, plusieurs contributions importantes ont été apportées aux domaines scientifiques. Premièrement, un programme de simulation de trajectoire d'électrons dans un solide par la méthode ...
Selective dry etching of TiN nanostructures over SiO2 nanotrenches using a CI2/Ar/N2 inductively coupled plasma
(2016)
Abstract : An inductively coupled plasma etch process for the fabrication of TiN nanostructures over nanotopography is presented. Using a Cl2/Ar/N2 plasma, a selectivity of 50 is achieved over SiO2. The effect of N2 flow ...
A silicone nanocrystal tunnel field effect transistor
(2014)
Abstract : In this work, we demonstrate a silicon nanocrystal Field Effect Transistor (ncFET). Its operation is similar to that of a Tunnelling Field Effect Transistor (TFET) with two barriers in series. The tunnelling ...
Chemical composition of nanoporous layer formed by electrochemical etching of p-type GaAs
(2016)
Abstract : We have performed a detailed characterization study of electrochemically etched p-type GaAs in a hydrofluoric acid-based electrolyte. The samples were investigated and characterized through cathodoluminescence ...
Highly transparent low capacitance plasma enhanced atomic layer deposition Al2O3-HfO2 tunnel junction engineering
(2014)
Abstract : The development of metallic single electron transistor (SET) depends on the downscaling and the electrical properties of its tunnel junctions. These tunnel junctions should insure high tunnel current levels, low ...
Arrays of holes fabricated by electron-beam lithography combined with image reversal process using nickel pulse reversal plating
(2004)
Abstract : A critical issue in fabricating arrays of holes is to achieve high-aspect-ratio structures. Formation of ordered arrays of nanoholes in silicon nitride was investigated by the use of ultrathin hard etch mask ...
Carrier transport properties in the vicinity of single seld-assembled quantum dots determined by low-voltage cathodoluminescence imaging
(2009)
Abstract : We propose a method to investigate the carrier transport properties in the ultrathin wetting layer of a self-assembled quantum dot (QD) structure using low-voltage cathodoluminescence (CL) imaging. Measurements ...
Photoluminescence and cathodoluminescence of Eu:La2O3 nanoparticles synthesized by several methods
(2010)
Abstract : Europium-doped La2O3 nanocrystalline powders with sizes ranging from 4 nm to 300 nm have been obtained by the modified Pechini, hydrothermal with conventional furnace, hydrothermal with microwave furnace, and ...
Spectroscopic ellipsometry on thin titanium oxide layers grown on titanium by plasma oxidation
(2011)
Abstract : Electronic devices based on tunnel junctions require tools able to accurately control the thickness of thin metal and oxide layers on the order of the nanometer. This article shows that multisample ellipsometry ...