Sökning: "Andréa Ray"
Hittade 4 uppsatser innehållade orden Andréa Ray.
1. Processing techniques of perovskite solar cells : Properties depending on material and manufacturing
Kandidat-uppsats, Uppsala universitet/Fysikalisk kemiSammanfattning : This project investigates how different types of perovskite solar cells, differentiated by choice of materials and processing techniques, compares to each other regarding performance and characterization. The purpose of the project is to further develop perovskite solar cells and to improve the method of manufacturing for better performance. LÄS MER
2. Multi-spectral X-ray imaging with a laser-plasma accelerator
Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenSammanfattning : This master thesis focuses on the creation of an algorithm to perform multispectral imaging of a metallic target using X-rays. The generation of an ultrashort high-power low-divergent X-ray beam is performed by means of a Ti:Sapphire laser driven wake-field plasma accelerator. LÄS MER
3. Magnetic field design for polarised neutrons in European Spallation Neutron Source instruments
Kandidat-uppsats, Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionenSammanfattning : The goal of this project is the design of the magnetic field of the neutron analyser for the European Spallation Source instrument DREAM (Diffraction Resolved by Energy and Angle Measurements). This instrument is a neutron diffractometer and its purpose is the determination of the magnetic and chemical structure of materials. LÄS MER
4. Processing and characterization of self-aligned Ni/Al and Co ohmic contacts to 4H-SiC
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : New self-aligned silicide processes for the realization of Ni/Al and Co contacts to silicon carbide (4H-SiC) are presented and contacts are characterized using the transfer length method (TLM). Since cobalt silicide formation on 4H-SiC has not been investigated before, interface reaction between Co and 4H-SiC as well as the study on the annealing temperatures constitute an essential part of this work. LÄS MER