Sökning: "Charge carrier mobility"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden Charge carrier mobility.

1. 1. Characterisation of Ionic Liquid doped Polybenzimidazole Membranes for Application in High-Temperature Proton Exchange Membrane Fuel Cells

   Master-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Adam Jacobsson Trönndal; [2023]
   Nyckelord :Fuel cells; Phosphoric acid; Polybenzimidazole; PA-PBI; Ionic liquid; IL; High temperature proton exchange membrane fuel cell; HT-PEMFC; Electrochemical impedance spectroscopy; EIS; IL-PBI; Chemical engineering; Technology and Engineering;

   Sammanfattning : In this study four membranes were tested and evaluated against each other for use in high-temperature proton exchange membrane fuel cell (HT-PEMFC) applications. A phosphoric acid (PA) doped polybenzimidazole (PBI) membrane, was used as a reference as the current state-of-the-art. LÄS MER

3. 2. Characterization of Bi-incorporated InSb(111)A/B Surfaces : An STM and XPS Study

   Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

   Författare :Shengpeng Huang; [2023]
   Nyckelord :indium antimonide; surface reconstructions; bismuth deposition; scanning tunneling microscopy; X-ray photoelectron spectroscopy.; Physics and Astronomy;

   Sammanfattning : In recent years, III-V semiconductor materials have received increasing attention due to their admirable electronic properties like direct tunable bandgaps and high charge carrier mobility. Indium Antimonide (InSb) possesses the largest electron mobility among III-V materials and is promising for infrared detectors, high-speed field effect transistors, and spintronics. LÄS MER

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

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

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

   Sammanfattning : 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. LÄS MER

5. 4. Electrical Characterizationon Commercially Available Chemical Vapor Deposition (CVD) Graphene

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

   Författare :Mikael Anttila-Eriksson; [2016]
   Nyckelord :GFET; Graphene; Dirac point shift; Charge carrier mobility;

   Sammanfattning : Field-effect transistors (FET) based on graphene as channel has extraordinaryproperties in terms of charge mobility, charge carrier density etc. However, there aremany challenges to graphene based FET due to the fact graphene is a monolayer ofatoms in 2-dimentional space that is strongly influenced by the operating conditions. LÄS MER

7. 5. Vertical heterostructure III-V nanowire MOSFETs

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

   Författare :Adam Jönsson; [2016]
   Nyckelord :MOSFET; transistor; heterostructure; III-V; RF; semiconductor; silicon; fabrication; electronics; Technology and Engineering;

   Sammanfattning : If cars had developed as fast as processors they would go at 470,000 mph, get 100,000 miles to the gallon, and cost 3 cents" claims Paul Ottelini, Intel CEO 2005-2013. This serves as a reminder of how fast the field of nanoelectronics is developing due to constant demand for faster and more energy efficient integrated circuits. LÄS MER