Sökning: "Gallium Arsenide"

Visar resultat 1 - 5 av 22 uppsatser innehållade orden Gallium Arsenide.

  1. 1. Two-Photon Excitation of a GaAs Quantum Dot by Electro-Optically Modulating a Continuous Wave Laser

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Julia Schauman; Linnea Bendrot; [2020]
    Nyckelord :;

    Sammanfattning : One of the most important steps towards enabling quantum communication would be to successfully integrate single-photon emitters and quantum memories, enabling the development of quantum repeaters. This is why, as part of a larger project, the objective of this bachelor thesis was to retrieve single-photons suitable for storage inside a Rubidium-based quantum memory. LÄS MER

  3. 2. Nanowire based mm-wave LNA and switch design

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Andreas Grenmyr; [2020]
    Nyckelord :LNA mm-wave RF switch nanowire MOSFET; Technology and Engineering;

    Sammanfattning : In this work, two LNAs operating at a frequency around 83 GHz and 110 GHz, for satellite- and 5G applications respectively, have been designed, using vertical InGaAs nanowire transistors. In addition, a switch operating at a frequency around 110 GHz has been designed. LÄS MER

  4. 3. Polymer Assisted Transfer of Graphene onto Semiconductor Substrates

    Kandidat-uppsats, Lunds universitet/Förbränningsfysik; Lunds universitet/Synkrotronljusfysik

    Författare :Jonathan Frisby; [2020]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : Since first being isolated in 2004, Graphene has been researched heavily because of its unique properties. Recently, interest has grown in graphene/semiconductor heterostructures. In this work, the transfer of graphene through the use of cellulose acetate butyrate (CAB) polymer is studied. LÄS MER

  5. 4. Passivation of Gallium Arsenide Nanowires for Solar Cells

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Austin Irish; [2019]
    Nyckelord :nanowires; semiconductors; solar cells; photovoltaics; passivation; electronics; chemistry; polymers; hydrazine; plasma; gallium; arsenic; iii-v; epitaxy; photoluminescence; time-resolved; spectroscopy; Physics and Astronomy;

    Sammanfattning : A strategic and diverse set of passivation methods for gallium arsenide nanowires wasstudied. Using a time-resolved photoluminescence setup at100 Kand300 K, the radiativerecombination of charge carriers was resolved on a picosecond time scale. LÄS MER

  7. 5. I-V and Optical Characterization of InP/InAsP Quantum Disc-in-Nanowire Infrared Photodetectors

    Magister-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Divya Raval; [2019]
    Nyckelord :Nanowires; Infrared photodetectors; Quantum disc; Photocurrent;

    Sammanfattning : Photodetectors are semiconductor devices capable of converting optical signals into electrical signals. There is a wide range of applications for photodetectors such as fiber optics communication, infrared heat camera sensors, as well as in medical and military equipment. LÄS MER