Essays about: "yttrium"

Showing result 1 - 5 of 31 essays containing the word yttrium.

  1. 1. Tuning Photovoltaic Properties of Two-dimensional Molybdenum Disulfide by Alloying: An ab initio study

    University essay from KTH/Materialvetenskap

    Author : Mochen Li; [2023]
    Keywords : Photovoltaic; Molybdenum disulfide; Absorption coefficient; ab initio material design; Fotovoltaisk; Molybdendisulfid; Absorptionskoefficient; ab initio materialdesign;

    Abstract : Addressing the urgent need for innovative energy solutions amidst increasing environmental concerns, the focus on photovoltaic solar cells is intensifying. Currently limited by the Shockley-Queisser limit, conventional silicon-based solar cells offer a maximum power conversion efficiency of 32%. READ MORE

  3. 2. Investigating Yttrium Ruthenate Pyrochlore as an Anodic Electrocatalyst in Proton Exchange Membrane Water Electrolysis

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Kneev Sharma; [2023]
    Keywords : ;

    Abstract : As the energy transition progresses, the demand for green storage solutions is ever-increasing. Hydrogen storage is receiving increased interest and support due to its promising sustainability and flexibility. Proton-exchange, or polymer electrolyte, membrane (PEM) electrolyzers are a key technology supporting hydrogen storage systems. READ MORE

  4. 3. Strain/Stress profile investigation of crystals mounted in an optical instrument via FEM simulation

    University essay from Lunds universitet/Industriell Produktion

    Author : Matheus Amarante Machado; [2023]
    Keywords : Modeling; Abaqus; Y2SiO5; Finite Element Modeling; Strain; Stress; Yttrium Orthosilicate.; Technology and Engineering;

    Abstract : Abstract This work is one of a series of related papers that were made in Lund University. They were done to analyze in a multi scalar way the Yttrium Orthosilicate crystals (YSO), analyzing the variation of material properties stemmed from the mounting, composition and other parameters in the optical properties of Yttrium Orthosilicate crystals. READ MORE

  5. 4. In Situ and Ex Situ Study of Nanoparticles Stability and Transformation in Simulated Aquatic Natural Media

    University essay from KTH/Kemi

    Author : Dinh Nguyen; Jonathan Samuelsson; Vilma Grönvall; [2022]
    Keywords : nanoparticles; freshwater; natural organic matter NOM ; agglomeration; dissolution; genotoxicity; atomic absorption spectroscopy AAS ; nanoparticle tracking analysis NTA ; inductively coupled plasma ICP ; nanopartiklar; färskvatten; naturligt organiskt material NOM ; agglomerering; upplösning; genotoxicitet; atomabsorptionsspektroskopi AAS ; nanopartikelspårning analys NTA ; induktivt kopplad plasmaanalys ICP ;

    Abstract : Nanopartiklar är partiklar med storlekar i området 1 till 100 nm, och som uppvisar nanospecifika egenskaper. Egenskaperna kan variera helt mellan olika typer av nanopartiklar, även bland partiklarna och deras respektive material i bulk format på grund av deras unika storlekar, former och strukturer. READ MORE

  6. 5. Fabrication and characterizationof self-supporting Yttrium foils

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Julia Fejes; Sofia Reineck; [2022]
    Keywords : yttrium; thin foils; meis; yttrium oxyhydride; photochromic; erda;

    Abstract : In this project self-supporting foils with focus on the element yttriumhave been fabricated by means of evaporation and magnetron sputtering.The goal was to see if it was possible to make photochromic selfsupportingyttrium foils. Multiple self-supporting foils were made andsome had suitable properties to be further investigated. READ MORE