Essays about: "SiO2"

Showing result 1 - 5 of 72 essays containing the word SiO2.

  1. 1. Synthesis of glass-ceramic Li2S-P2S5-based electrolyte for solid-state batteries

    University essay from Uppsala universitet/Oorganisk kemi

    Author : Leo Sjörén; [2023]
    Keywords : Solid electrolyte; Battery; sulphide; glass; electolyte; ball milling; ceramic; glass-ceramic; Batteri; elektrolyt; glas; glaskeram; svavel;

    Abstract : In this project, solid sulphur based Li3PS4 electrolytes doped with Li4SiO4 were synthesised using two methods. In method A, a bought β-Li3PS4 electrolyte from Nei Corp was doped with 5 mole per cent Li4SiO4, resulting in a glass-ceramic electrolyte. READ MORE

  3. 2. Developing an Ar milling process to improve the contact quality to InAs nanowires

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

    Author : Chris Mkolongo; [2023]
    Keywords : InAs nanowires; Argon milling; Technology and Engineering;

    Abstract : The aim of this work was to develop a stable and reproducible argon milling process for InAs nanowires to remove the native oxide layer that increases electrical resistance. This was done by identifying a few milling parameters and studying them in relation to the milling rate of silicon dioxide (SiO2). READ MORE

  4. 3. Non-Disposable and Reusable Solar Sails for Transporting Sunshades to the L1' Point

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Jörgen Smit; Thomas Östervall; [2023]
    Keywords : Sunshade Project; L1; Solar sailing;

    Abstract : This study evaluates the feasibility of reusing lightweight solar sails in order to transport 1.69 * 10^6 sunshades, made out of occulting membranes with free-standing SiO2 nanotube films, to the adjusted sun-Earth Lagrange point, L1'. READ MORE

  5. 4. BCP Lithography Defined Arrays of InAs NWs Grown Using MOVPE with Au Seeds

    University essay from Lunds universitet/Lunds Tekniska Högskola; Lunds universitet/Fasta tillståndets fysik

    Author : Björn Landeke-Wilsmark; [2022]
    Keywords : Physics and Astronomy;

    Abstract : In this report we outline a detailed process flow for a quick and inexpensive implementation of large dense arrays of InAs nanowires (NWs) grown in the reactive ion etching/etched (RIE) pores of a SiO2/SiNx mask on top of an InAs/Si(111) substrate. The self-assembled (hexagonally close-packed) pattern of poly(methyl-methacrylate) (PMMA) cylinders in a poly(styrene) (PS) matrix adopted by a linear diblock poly(styrene-block-methyl-methacrylate) P(S-b-MMA) block-copolymer (BCP) was transferred to the dielectric stack (consisting of a ≈10 nm plasma enhanced chemical vapour deposition/deposited (PECVD) SiNX layer topped by a thin atomic layer deposition/deposited (ALD) SiO2 film) using a two-step RIE procedure. READ MORE

  6. 5. Investigation on the effect of pore size and surface area of mesoporous silica on the conductivity of solid composite electrolytes

    University essay from KTH/Tillämpad fysik

    Author : Hitesh Khanna Pedaprolu; [2022]
    Keywords : Solid Composite Electrolytes SCE ; Mesoporous Silica; Silica SiO2 ; Ionic Liquid Electrolyte ILE ; Fasta sammansatta elektrolyter SCE ; mesoporös kiseldioxid; kiseldioxid SiO2 ; jonisk flytande elektrolyt ILE ;

    Abstract : Solid-state batteries are gaining a lot of attention in the commecial sector today. Development of the solid state electrolytes is an important part in making commercially viable solid-state batteries. READ MORE