Sökning: "Sebastian Ekhagen"

Hittade 2 uppsatser innehållade orden Sebastian Ekhagen.

  1. 1. Stability of electron acceptor materials for organic solar cells : a work function study of C60/C70 derivatives and N2200

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

    Författare :Sebastian Ekhagen; [2019]
    Nyckelord :;

    Sammanfattning : Thin films of the fullerenes PC60BM and PC70BM and the non-fullerene N2200, three popular electron acceptor materials in organic photovoltaics, have been studied, using both the Kelvin probe method as well as ultraviolet photoelectron spectroscopy. With these methods the work function was measured, as well as the highest occupied molecular orbital (HOMO) onset. LÄS MER

  3. 2. Silicon solar cells: basics of simulation and modelling : Using the mathematical program Maple to simulate and model a silicon solar cell

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Sebastian Ekhagen; [2017]
    Nyckelord :solar cell; semiconductor; physics; condensed matter physics; solid state physics; applied physics; solcell; halvledare; fysik; material fysik; applicerad fysik; fasta tillståndets fysik.;

    Sammanfattning : The main goal of this thesis was to simulate a solar cell with the symbolic manipulation tool Maple and discuss the strength and weaknesses of using Maple instead of the already known simulation program PC1D. This was done mainly by solving the three essential differential equations governing the current density and excess electron and hole densities in the solar cell. LÄS MER