Browsing Kjemisk institutt by Author "Ponniah, Vajeeston"
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Thøgersen, Rasmus Vester; Bianchini, Federico; Fjellvåg, Helmer; Ponniah, Vajeeston (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)The rapid electrification of our society and the transition towards a larger share of intermittent renewable energy sources in our electricity grids will dramatically increase the demand for cheap energy storage. Sodium ...
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Azarov, Alexander; Bazioti, Kalliopi; Venkatachalapathy, Vishnukanthan; Ponniah, Vajeeston; Monakhov, Eduard; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)olymorphs are common in nature and can be stabilized by applying external pressure in materials. The pressure and strain can also be induced by the gradually accumulated radiation disorder. However, in semiconductors, the ...
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First-Principles Insights into the Relative Stability and Physical and Chemical Properties of MoSe2 Banu S, Lathifa; Veerapandy, Vasu; Fjellvåg, Helmer; Ponniah, Vajeeston (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)A fascinating transition-metal dichalcogenide (TMDC) compound, MoSe2, has attracted a lot of interest in electrochemical, photocatalytic, and optoelectronic systems. However, detailed studies on the structural stability ...
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Wanniarachchi, Chapa; Arunasalam, Thevakaran; Ravirajan, Punniyamoorthy; Velauthapillai, Dhayalan; Ponniah, Vajeeston (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)TiO2 was known as a golden heterogeneous photocatalyst due to its chemical stability, low cost, nontoxicity, and strong oxidizing power. However, anatase TiO2 predominantly absorbs the photon energy in the ultraviolet ...
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Brennhagen, Anders; Cavallo, Carmen; Wragg, David Stephen; Ponniah, Vajeeston; Sjåstad, Anja Olafsen; Koposov, Alexey; Fjellvåg, Helmer (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Based on the same rocking-chair principle as rechargeable Li-ion batteries, Na-ion batteries are promising solutions for energy storage benefiting from low-cost materials comprised of abundant elements. However, despite ...
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Devamanoharan, Arthi; Veerapandy, Vasu; Ponniah, Vajeeston (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Materials made of indium oxide (In2O3) are now being used as a potential component of the next generation of computers and communication devices. Density functional theory is used to analyze the physical, electrical, and ...
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Mayandi, Jeyanthinath; Finstad, Terje Gunnar; Dahl, Øyvind; Ponniah, Vajeeston; Schrade, Matthias; Løvvik, Ole Martin; Diplas, Spyridon; Almeida Carvalho, Patricia (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Films were reactively sputtered from a high entropy alloy (HEA) FeCoNiCuGe target in an Ar/O2 plasma. The case of zero O2 gas flow yielded HEA films of FeCoNiCuGe. These as-deposited HEA films have a face centered cubic ...