Essays about: "Wurtzite"

Showing result 1 - 5 of 13 essays containing the word Wurtzite.

  1. 1. In-situ Growth of Sn-seeded GaAs and GaSb Nanowire Heterostructures

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Azemina Kraina; [2023]
    Keywords : nanowire; heterostructure; ETEM; MOCVD; TEM; in-situ; Sn; GaAs; GaSb; materials chemistry; Technology and Engineering; Chemistry;

    Abstract : One of the ways to utilize III-V nanowires, is to make use of the possibility to combine materials and create heterostructures which allows for creating material combinations with new properties. A special interest can be taken into Sb-containing nanowires due to the high electron mobility, however there has been reported difficulties with switching to other materials because of a 'memory effect' where Sb lingers in the system and nanowire. READ MORE

  3. 2. Establishing simulations of shockwaves in InSb using molecular dynamics

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Erik Löfquist; [2021]
    Keywords : Physics and Astronomy;

    Abstract : Laser induced shockwaves have previously been shown to prompt structural changes in germanium. Similar experiments have now been performed in InSb, with powder diffraction patterns displaying a peak at 2.3Å indicating the formation of an unknown structure. READ MORE

  4. 3. Femtosecond Photoemission Electron Microscopy of Indium Arsenide Nanowires

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Björn Johansson; [2018]
    Keywords : Indium Arsenide; PEEM; Femtosecond laser; Time-resolved PEEM; InAs; Wurtzite; zinc blende; pump-probe; Photoemission Electron Microscopy; pulsed laser.; Physics and Astronomy;

    Abstract : PhotoEmission Electron Microscopy (PEEM) has proven to be a successful method for examining the electronic characteristics of nanostructures. The experiments relevant for the following report were conducted using a combination of PEEM and a femtosecond pulsed laser to determine the electrical characteristics of Indium Arsenide nanowire of crystal structure varying between wurtzite and zinc blend. READ MORE

  5. 4. Interfaces in complex InAs-GaSb heterostructured nanowires - A transmission electron microscopy study

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Louise Uhrgård Gren; [2017]
    Keywords : transmission electron microscope; TEM; aberration corrected S TEM; nanowires; core-shell nanowires; InAs-GaSb; advanced characterization; Technology and Engineering;

    Abstract : In this project epitaxially grown InAs-GaSb complex heterostructured nanowires have been characterized by means of aberration corrected TEM techniques and energy dispersive X-ray spectroscopy (EDX). The InAs-GaSb material is of interest due to its high charge carrier mobility, which has possible applications in electronic devices such as FETs. READ MORE

  6. 5. Electrical characterization of strained InP-Ga(x)In(1-x)As core-shell nanowires

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

    Author : Lorenz Frevel; [2016]
    Keywords : nanowire; strain; piezoelectric effect; indium phosphide; InP; gallium indium arsenide; GaInAs; InGaAs; core-shell; radial heterostructure; Physics and Astronomy;

    Abstract : This project report attempts to measure the piezoelectric effect in strained core-shell nanowires. The core material is wurtzite indium phosphide (InP) and the shell material wurtzite gallium indium arsenide (Ga(x)In(1-x)As). READ MORE