Sökning: "MoO3"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet MoO3.

  1. 1. A study of the triboelectricity of 2D materials: MoS2, WS2 and MoO3 : Analyzing measurements from a triboelectric nanogenerator

    Kandidat-uppsats, Mittuniversitetet/Institutionen för naturvetenskap

    Författare :Simon Kilman; [2022]
    Nyckelord :2D-material; MoS2; WS2; MoO3; triboelektrisk nanogenerator; TENG; triboelektrisk effekt; triboelektrisk serie; kontaktelektrifiering.;

    Sammanfattning : Detta projekts mål har varit att undersöka tre olika 2D-materials triboelektriska egenskaper och därmed placera dem i en triboelektrisk serie. Detta utfördes genom att använda en triboelektrisk nanogenerator (TENG) och mäta den resulterande spänningen. Tio stycken motmaterial applicerades mot varje 2D-material på nanogeneratorn. LÄS MER

  3. 2. Nanoscale characterisation of model Ni-Mo catalyst active phases

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Centrum för analys och syntes

    Författare :Jonas Elmroth Nordlander; [2022]
    Nyckelord :Ni-Mo catalysts; Hydrodeoxygenation; TEM; PXRD; Materials chemistry; Chemistry;

    Sammanfattning : An important stepping stone in transitioning from a fossil-fuel based transportation system is the production of bio-fuels such as bio-oils. For bio-oils to be commercially viable, catalytic upgrading via hydrodeoxygenation is required, typically using Ni-Mo oxide or sulfide catalysts. LÄS MER

  4. 3. Hole transport layers in organic solar cells : A study of work functions in nanofilms

    Kandidat-uppsats, Karlstads universitet/Science, Mathematics and Engineering Education Research (SMEER)

    Författare :Frida Nilsson; [2019]
    Nyckelord :PEDOT:PSS; PMA; MoO3; organic solar; work function; band gap;

    Sammanfattning : Organic solar cells have been showing promise as a way of producing renewableenergy with the help of light, flexible, and production effective materials.The efficiencies and lifetimes reached in organic solar cells have steadily beenincreasing over the years as more research in the field is being conducted. LÄS MER

  5. 4. Recombination losses in organic solar cells : Study of recombination losses in organic solar cells by light intensity-dependent measurements

    Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Sebastian Lind; [2018]
    Nyckelord :Organic solar cells; recombination losses;

    Sammanfattning : Easy manufacturing, light weight and inexpensive materials are the key qualities of organic solar cells that makes them a highly researched area. To make organic solar cells adequate for the market, the efficiency of power conversion has to increase further, and the lifetime of organic solar cells has to improve. LÄS MER

  7. 5. Surface energy modification of metal oxide to enhance electron injection in light-emitting devices : charge balance in hybrid OLEDs and OLETs

    Master-uppsats, Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

    Författare :Sergio Apicella Fernandez; [2017]
    Nyckelord :organic; inorganic; semiconductors; OLEDs; OLETs; TFT; stack; thin-film; deposition; spin-coating; thermal; evaporation; process; reactive; sputtering; luminescence; EQE; PEIE; metal-oxide; ZnO; ZnO:N; MoO3; F8BT; Alq3; NPB;

    Sammanfattning : Organic semiconductors (OSCs) present an electron mobility lower by several orders of magnitude than the hole mobility, giving rise to an electron-hole charge imbalance in organic devices such as organic light-emitting diodes (OLEDs) and organic light-emitting transistors (OLETs). In this thesis project, I tried to achieve an efficient electron transport and injection properties in opto-electronic devices, using inorganic n-type metal oxides (MOs) instead of organic n-type materials and a polyethyleneimine ethoxylated (PEIE) thin layer as electron transport (ETLs) and injection layers (EILs), respectively. LÄS MER