Sökning: "temperature dependent PL"

Hittade 4 uppsatser innehållade orden temperature dependent PL.

  1. 1. Sputtering of High Quality Layered MoS2 films

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Sari Abid Al Shaybany; [2020]
    Nyckelord :MoS2; molybdenum; molybdenum disulfide; sputtering; magnetron sputtering; high quality; sulfur; H2S; argon; pressure; temperature; high temperature; monolayer; few layers; large scale;

    Sammanfattning : We have deposited bulk, monolayer and few-layers as well as large-scale 2D layered MoS2 thin films by pulsed DC magnetron sputtering from an MoS2 target. MoS2 has gained great attention lately, together with other layered Transition Metal Dichalcogenides (TMDCs), for its unique optical and electrical properties with thickness-dependent bandgap. LÄS MER

  3. 2. Properties of III-V/Si heterojunction fabricated by HVPE

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Prakhar Bhargava; [2020]
    Nyckelord :;

    Sammanfattning : 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. LÄS MER

  4. 3. Time-Resolved Photoluminescence Studies of InGaP Nanowires for Improving the Internal Quantum Efficiency

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

    Författare :Lert Chayanun; [2017]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : Semiconductor Nanowires are promising building blocks for advanced optoelectronic devices since their small diameter give rise to quantization effects. The small diameter also makes them susceptible to non-radiative recombination due to surface states. LÄS MER

  5. 4. Growth and Characterization of ZnO Nanostructures

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Abdul Samad Syed; [2011]
    Nyckelord :PL photoluminescence ; Zinc Oxide ZnO ; optical properties; temperature dependent PL; Low temperature PL; Nanostructure; epitaxial film;

    Sammanfattning : A close relation between structural and optical properties of any semiconductor material does exist. An adequate knowledge and understanding of this relationship is necessary for fabrication of devices with desired optical properties. LÄS MER