Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Margus Kodu"'
Autor:
Margus Kodu, Rainer Pärna, Tea Avarmaa, Indrek Renge, Jekaterina Kozlova, Tauno Kahro, Raivo Jaaniso
Publikováno v:
Chemosensors, Vol 11, Iss 8, p 460 (2023)
Chemiresistive gas sensors were produced by functionalizing graphene with a ~3 nm layer of mixed oxide xCu2O⸱yMnO using pulsed laser deposition (PLD) from a hopcalite CuMn2O4 target. Sensor response time traces were recorded for strongly oxidizing
Externí odkaz:
https://doaj.org/article/bb9a11fa26cf422281bc0e2c47df2412
Autor:
Martin Lind, Valter Kiisk, Margus Kodu, Tauno Kahro, Indrek Renge, Tea Avarmaa, Prashanth Makaram, Amaia Zurutuza, Raivo Jaaniso
Publikováno v:
Chemosensors, Vol 10, Iss 2, p 68 (2022)
Miniature and low-power gas sensing elements are urgently needed for a portable electronic nose, especially for outdoor pollution monitoring. Hereby we prepared chemiresistive sensors based on wide-area graphene (grown by chemical vapor deposition) p
Externí odkaz:
https://doaj.org/article/6d14fffec6ac40c7b0d6555e0545dac9
Autor:
Margus Kodu, Artjom Berholts, Tauno Kahro, Mati Kook, Peeter Ritslaid, Helina Seemen, Tea Avarmaa, Harry Alles, Raivo Jaaniso
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 8, Iss 1, Pp 571-578 (2017)
Graphene has been recognized as a promising gas sensing material. The response of graphene-based sensors can be radically improved by introducing defects in graphene using, for example, metal or metal oxide nanoparticles. We have functionalised CVD g
Externí odkaz:
https://doaj.org/article/1715c0c171e441c6948574f4bfa535f9
Publikováno v:
Nanomaterials, Vol 10, Iss 11, p 2168 (2020)
In this manuscript, we explore the sensor properties of epitaxially grown graphene on silicon carbide decorated with nanolayers of CuO, Fe3O4, V2O5, or ZrO2. The sensor devices were investigated in regard to their response towards NH3 as a typical re
Externí odkaz:
https://doaj.org/article/07fc9f11d3104062855af982e95eb658
Autor:
Margus Kodu, Artjom Berholts, Tauno Kahro, Jens Eriksson, Rositsa Yakimova, Tea Avarmaa, Indrek Renge, Harry Alles, Raivo Jaaniso
Publikováno v:
Sensors, Vol 19, Iss 4, p 951 (2019)
Graphene in its pristine form has demonstrated a gas detection ability in an inert carrier gas. For practical use in ambient atmosphere, its sensor properties should be enhanced with functionalisation by defects and dopants, or by decoration with nan
Externí odkaz:
https://doaj.org/article/db631b6637f54d1e92022cfde08482e9
Autor:
Margus Kodu, Artjom Berholts, Tauno Kahro, Jens Eriksson, Rositsa Yakimova, Tea Avarmaa, Indrek Renge, Harry Alles, Raivo Jaaniso
Publikováno v:
Proceedings, Vol 2, Iss 13, p 854 (2018)
Exceptionally sensitive and selective graphene-based chemiresistive gas sensors were produced as a result of graphene functionalisation with a sub-nanometer V2O5 layer by using the method of pulsed laser deposition. Two different types of graphene we
Externí odkaz:
https://doaj.org/article/b224ee0e8f344e43a24eff694b0b8d03
Autor:
Gunnar Nurk, Mait Ainsar, Margus Kodu, Glen Kelp, Tavo Romann, Enn Lust, Jean-Jacques Gallet, Edwin Kukk, Kuno Kooser, Priit Möller
Publikováno v:
ECS Transactions. 111:579-586
To improve catalytic activity of LaxSr0.9-xTiyM1-yO3-δ, La1-xSrxCryM1-yO3-δ based materials, doping of perovskite B-site with metals (M) like Ni, Co, Mo or Cu has been proposed. It has been demonstrated, that at elevated temperatures and in reducin
Publikováno v:
ECS Transactions. 111:419-428
In this work thin film SOFC anode MIEC La0.31Sr0.58Ti0.97Ni0.03O3-δ (LSTN) electrodes with embedded 200 nm thick Pt current collectrors (CC-s) and electrodes without CC-s deposited on 10Sc1CeSZ electrolyte were studied in 650 °C in 98.5% H2 and 1.5
Autor:
Raivo Jaaniso, Michal Novotný, J. More-Chevalier, Martin Vondráček, Přemysl Fitl, František Lukáč, Lenka Volfová, Ján Lančok, Valter Kiisk, Margus Kodu, Š. Havlová, P. Hruska, Jiří Bulíř, Ladislav Fekete, Martin Vrňata, J. Remsa
Publikováno v:
Journal of Materials Science. 56:11414-11425
ZnO:Eu thin film fabricated by pulsed laser deposition was treated by pulsed UV laser. The effect of laser fluence from 70 to 125 mJ cm−2 on film properties was investigated. The results showed that the surface morphology was clearly modified and t
Autor:
Riinu Härmas, Päärn Paiste, M. Ainsar, Enn Lust, Martin Maide, Gunnar Nurk, Margus Kodu, Hugo Mändar, Jaan Aruväli, Ove Korjus, Kuno Kooser, S. Granroth
Publikováno v:
Fuel Cells. 20:741-752