Essays about: "heterostructure"

Showing result 1 - 5 of 24 essays containing the word heterostructure.

  1. 1. Simulation of Quantum Cascade Lasers

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk fysik

    Author : Zakaria Mohamed; [2023]
    Keywords : Quantum Cascade Lasers; Simulations; Numerical Methods; Computational Models; Heterostructures; Physics and Astronomy;

    Abstract : This thesis aimed to contribute to the improvement of Quantum Cascade Lasers (QCLs) by focusing on the effective determination of quantum levels in these devices. The current method relies on an outdated Fortran code, which poses challenges when integrating into optimization schemes. READ MORE

  3. 2. 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

  4. 3. Semiconducting TiO2 for High Performance Ferroelectric Tunnel Junctions

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Erik Wikare; [2022]
    Keywords : Technology and Engineering;

    Abstract : The ferroelectric tunnel junction FTJ is a rather old concept but has recently been in the spotlight for its promising properties in computer memory technology and neuromorphic computing. The device consists of a ferroelectric insulator sandwiched between two electrodes, and by polarisation switching the resistance along the heterostructure can drastically be adjusted. READ MORE

  5. 4. Demonstration and investigation of hydrogen production by water splitting through plasmon assisted photocatalysis involving a cobalt catalyst.

    University essay from Uppsala universitet/Fysikalisk kemi

    Author : Amal Mendalz; [2022]
    Keywords : ;

    Abstract : Plasmonic heterostructures are of great interest within the industry and in the academia owing to theirapplications in photovoltaics and photocatalysis. The Localised surface plasmon resonance (LSPR) leading to an intensification of the electromagnetic (EM) field on the surface of the plasmonic nanoparticles results in an efficient absorption of light over miniscule thickness of the material. READ MORE

  6. 5. Properties of III-V/Si heterojunction fabricated by HVPE

    University essay from KTH/Tillämpad fysik

    Author : Prakhar Bhargava; [2020]
    Keywords : ;

    Abstract : Silicon is a promising material and is used for a wide range of applications in the electronics industry because of the high quality surface passivation given by the native oxide layer SiO2e. However, Si is not an ideal candidate for optoelectronic applications due to its indirect bandgap of 1. READ MORE