Sökning: "ohmic contact"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden ohmic contact.

  1. 1. Thin Indium Tin Oxide Layer Development for Crystalline Silicon/Perovskite Two Terminal Tandem Solar Cell

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Aravind Srinivasachari; [2023]
    Nyckelord :Indium Tin Oxide; Thin-film characterisation; Magnetron Sputtering; Screen printing; Tandem Solar Cells; Indium-tennoxid; karaktärisering av tunnfilm; magnetronförstoftning; screentryck; tandemsolceller;

    Sammanfattning : ITO is widely regarded as the optimal TCO for serving as front window layer in PSK/c-Si tandem solar cells. It is known to effectively mitigate several stability issues present in perovskite solar cells while demonstrating excellent lateral conductivities and optical transparency across the entire solar spectrum. LÄS MER

  3. 2. Niobium Ohmic Contacts for Cryogenic Indium Phosphide High-Electron-Mobility Transistors

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Linnéa Bendrot; [2022]
    Nyckelord :Ohmic contacts; high-electron-mobility transistor; InP; Nb films; cryogenic electronics; low-noise amplifier; quantum computing; transfer length method; superconductivity; contact barrier resistance; Ohmska kontakter; högelektronmobilitetstransistorer; indiumfosfid; niob; tunnfilm; kryogen elektronik; lågbrusförstärkare; kvantdatorer; Transfer Length-metod; supraledning; kontakt- barriärresistans;

    Sammanfattning : Ohmic contacts are crucial components in semiconductor devices such as transistors and diodes, and lowering their contact resistance is an important factor in device performance enhancement. This is especially important for low-noise amplifiers (LNAs) where device noise temperature decreases both directly and indirectly with decreasing contact resistance. LÄS MER

  4. 3. Carbon nanomaterials as electrical conductors in electrodes

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Delan Shukr; [2021]
    Nyckelord :carbon; nanomaterials; graphene;

    Sammanfattning : In this project, different molecules have been investigated with the purpose of creating anohmic contact between metals and carbon nano materials. In particular, we considered simplemolecules connecting a graphene layer and a copper-slab. LÄS MER

  5. 4. Molecular linking towards direct plasmonic transparent solar cell

    Master-uppsats, Uppsala universitet/Institutionen för kemi - Ångström

    Författare :Thinh Nguyen Luong The; [2020]
    Nyckelord :pABA; plasmonic; plasmon; solar; cell; Ag; silver; self; assembly; citrate;

    Sammanfattning : Plasmonic materials have been studied extensively in the last decade for applications in photonics, solar energy utilization and catalysis. The introduction of molecular linker bridging metal particles and oxide semiconductor has been proven to prolong the lifetime of short-lived hot carriers and prevent issues from ohmic contact. LÄS MER

  7. 5. 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