Essays about: "monolayer MoS2"

Found 4 essays containing the words monolayer MoS2.

  1. 1. Characterizing optical and electrical properties of monolayer MoS2 by backside absorbing layer microscopy

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Nathan Ullberg; [2020]
    Keywords : backside absorbing layer microscopy; BALM; monolayer MoS2; TMD; TMDC; 2D materials; nanomaterials; nanotechnology; refractive index; extinction coefficient; absorption coefficient; field-effect transistor; FET; semiconductors; optoelectronics; optics; raw image processing; chemical vapor deposition; CVD; in situ characterization;

    Abstract : Nanomaterials are playing an increasing role in novel technologies, and it is important to develop optical methods to characterize them in situ.  To that end, backside absorbing layer microscopy (BALM) has emerged as a powerful tool, being capable to resolve sub-nanometer height profiles, with video-rate acquisition speeds and a suitable geometry to couple live experiments. READ MORE

  3. 2. Sputtering of High Quality Layered MoS2 films

    University essay from Uppsala universitet/Fasta tillståndets elektronik

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

    Abstract : 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. READ MORE

  4. 3. Field-effect transistor based biosensing of glucose using carbon nanotubes and monolayer MoS2

    University essay from Uppsala universitet/Molekyl- och kondenserade materiens fysik

    Author : Nathan Ullberg; [2019]
    Keywords : field-effect transistor; biosensor; glucose; carbon nanotube; MoS2; 1D materials; 2D materials; nanotechnology; FET;

    Abstract : As part of the EU SmartVista project to develop a multi-modal wearable sensor for health diagnostics, field-effect transistor (FET) based biosensors were explored, with glucose as the analyte, and carbon nanotubes (CNTs) or monolayer MoS2 as the semiconducting sensing layer.  Numerous arrays of CNT-FETs and MoS2-FETs were fabricated by photolithographic methods and packaged as integrated circuits. READ MORE

  5. 4. Slim Moly S makes hydrogen : Layer dependent electrocatalysis in hydrogen evolution reaction with individual MoS2 nanodevices

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Martin Brischetto; [2018]
    Keywords : MoS2; hydrogen evolution reaction; HER; Electrocatalysis; nanodevice;

    Abstract : Molybdenum disulfide (MoS2) has been demonstrated to be a potential catalyst in the hydrogen evolution reaction (HER). Due to its highly active edge site, abundance, and low cost, it rivals Pt. However, the potential activity of the MoS2 basal plane has largely been ignored. READ MORE