Essays about: "a-Si"

Showing result 1 - 5 of 16 essays containing the word a-Si.

  1. 1. Design and fabrication of Si diaphragms for capacitive pressure sensors in high-pressure microfluidics

    University essay from Uppsala universitet/Mikrosystemteknik

    Author : Elin Rosén; [2021]
    Keywords : ;

    Abstract : The pressure has a major impact when it comes to control of chemical processes. A method for integrating electrical pressure sensors in high-pressure microfluidic chips has, however, so far not been developed and the aim of this project was therefore to study how capacitive pressure sensors could be designed and fabricated to measure pressures between 1-100 bar. READ MORE

  3. 2. Sunshade Demonstrator Spacecraft Earth Sphere of Influence Escape Using a Propellant-free AOCS

    University essay from KTH/Rymdteknik

    Author : Leonardo Ricci; [2021]
    Keywords : Solar sail; Solar radiation pressure; Attitude control; Escape trajectory; Centre of pressure; Disturbance Torques; Eclipse.; Solsegel; Solstrålningstryck; Attitydkontroll; Flyktbana; Tryckcentrum; Störningsmoment; Eclipse.;

    Abstract : This thesis provides insights to what is peculiar about a solar sail attitude and orbit control system and provides the assessment, in the form of a feasibility study, of the effectiveness of sail tip vanes as a control hardware to escape the Earth sphere of influence. The demonstrator aims to prove the technology for the Sunshade project, a constellation of solar sails located at the Lagrangian point L1 to obscure part of the solar radiation directed towards earth. READ MORE

  4. 3. Development and characterisation of silicon solar cells with recombination interconnects for future tandem solar cells

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Marika Gugole; [2018]
    Keywords : ;

    Abstract : In this project commercial BSF Si solar cells have been processed in order to develop a suitable interconnect for a possible tandem solar cell. The Ag original top contacts have been removed and replaced with TiSi2 formed using the SALICIDE process at 3 different temperatures: 500 °C, 650 °C and 750 °C. READ MORE

  5. 4. Climate Blame Below The Glaciers - Challenges to Climate Justice in Peruvian Mountains and German Courts

    University essay from Lunds universitet/Humanekologi

    Author : Line Skovlund Larsen; [2018]
    Keywords : Climate Blame; Climate Justice; Perceptions of Climate Change Causes; Climate Liability; Climate Litigation; Individual Guilt; Collective Responsibility; Diffuse Responsibility; Water Scarcity; Glacial Lake Outburst Flood; The Global South; The Andes; RWE; Huaraz; Peru; Social Sciences;

    Abstract : This thesis investigates climate blame amongst a local population in the Northern Andes, Peru, and relates it to arguments on climate liability in German courtrooms. It does so on the backdrop of a climate lawsuit, which in 2017 was accepted by the Higher Regional Court in Hamm, Germany, filed by a Peruvian farmer against a German coal- and electricity company. READ MORE

  6. 5. Vertical heterostructure III-V nanowire MOSFETs

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

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

    Abstract : 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. READ MORE