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Fletta eftir höfundi "Árnason, Hákon Örn"

Fletta eftir höfundi "Árnason, Hákon Örn"

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    Piezoresistance characterization of silicon nanowires in uniaxial and isostatic pressure variation 
    Aghabalaei Fakhri, Elham; Plugaru, Rodica; Sultan, Muhammad Taha; Kristinsson, Thorsteinn; Árnason, Hákon Örn; Plugaru, Neculai; Manolescu, Andrei; Ingvarsson, Snorri; Svavarsson, Halldor (MDPI AG, 2022-08-23)
    Silicon nanowires (SiNWs) are known to exhibit a large piezoresistance (PZR) effect, making them suitable for various sensing applications. Here, we report the results of a PZR investigation on randomly distributed and interconnected vertical silicon ...
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    Simulation of short pulse photoemission in a microdiode with implications for optimal beam brightness 
    Árnason, Hákon Örn; Torfason, Kristinn; Manolescu, Andrei; Valfells, Ágúst (Institute of Electrical and Electronics Engineers (IEEE), 2024)
    Molecular dynamics simulations, with full Coulomb interaction, are used to model short-pulse photoemission from a finite area in a microdiode. We demonstrate three emission regimes, source-limited emission, space-charge-limited emission for short pulses, ...