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Št. zadetkov: 8
AFM study of roughness development during ToF-SIMS depth profiling of multilayers with a Cs[sup]+ ion beam in a H[sub]2 atmosphere
Jernej Ekar, Janez Kovač
Izvirni znanstveni članek
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Leto: 2022 Vir: Institut Jožef Stefan (IJS)
ToF-SIMS depth profiling of metal, metal oxide, and alloy multilayers in atmospheres of H[sub]2, C[sub]2H[sub]2, CO, and O[sub]2
Jernej Ekar, Peter Panjan, Sandra Drev, Janez Kovač
Izvirni znanstveni članek
Oznake: Ions;Layers;Mass spectrometry;Metals;Oxides;SIMS depth profiling H2 C2H2 CO and O2 atmosphere gas flooding cluster secondary ions matrix effect;
Leto: 2022 Vir: Institut Jožef Stefan (IJS)
Effects of hydrogen dissociation during gas flooding on formation of metal hydride cluster ions in secondary ion mass spectrometry
Jernej Ekar, Sabina Markelj, Miran Mozetič, Rok Zaplotnik, Janez Kovač
Izvirni znanstveni članek
Oznake: hydrogen atmosphere;molecule dissociation;gas flooding;cluster ions;secondary ion mass spectrometry;
The application of hydrogen flooding was recently shown to be a simple and effective approach for improved layer differentiation and interface determination during secondary ion mass spectrometry (SIMS) depth profiling of thin films, as well as an approach with potential in the field of quantitative ...
Leto: 2024 Vir: Institut Jožef Stefan (IJS)
Are perovskite solar cell potential-induced degradation proof?
Kristijan Brecl, Marko Jošt, Matevž Bokalič, Jernej Ekar, Janez Kovač, Marko Topič
Izvirni znanstveni članek
Oznake: perovskitne sončne celice;napetostno vzbujena degradacija;stabilnost;zunanje delovanje;perovskite solar cells;potential-induced degradation;stability;field operation;
Potential induced degradation (PID) is a solar cell related degradation mechanism due to high potential difference in a photovoltaic (PV) module between the solar cells and its grounded frame. This type of degradation is well known for silicon PV, however, for perovskites it has not been thoroughl ...
Leto: 2022 Vir: Fakulteta za elektrotehniko (UL FE)
Recombination of oxygen atoms on the surface of oxidized polycrystalline nickel—temperature and pressure dependences
Domen Paul, Miran Mozetič, Rok Zaplotnik, Jernej Ekar, Alenka Vesel, Gregor Primc, Denis Đonlagić
Izvirni znanstveni članek
Oznake: heterogenous surface recombination;recombination coefficient;nickel;nickel oxide;temperature;
The recombination of neutral oxygen atoms in the ground state on the oxidized nickel samples was studied experimentally in the range of pressures where the maximum density occurs in weakly ionized low-pressure oxygen plasma, i.e. between 40 and 200 Pa. The recombination coefficient was determined in ...
Leto: 2023 Vir: Fakulteta za elektrotehniko, računalništvo in informatiko (UM FERI)
Loss of oxygen atoms on well-oxidized cobalt by heterogeneous surface recombination
Domen Paul, Miran Mozetič, Rok Zaplotnik, Jernej Ekar, Alenka Vesel, Gregor Primc, Denis Đonlagić
Izvirni znanstveni članek
Oznake: materiali;preizkušanje;kinetika;organski materiali;
Calorimetry is a commonly used method in plasma characterization, but the accuracy of the method is tied to the accuracy of the recombination coefficient, which in turn depends on a number of surface effects. Surface effects also govern the kinetics in advanced methods such as atomic layer oxidation ...
Leto: 2023 Vir: Fakulteta za elektrotehniko, računalništvo in informatiko (UM FERI)
Defluorination of polytetrafluoroethylene surface by hydrogen plasma
Alenka Vesel, Dane Lojen, Rok Zaplotnik, Gregor Primc, Miran Mozetič, Jernej Ekar, Janez Kovač, Marija Gorjanc, Manja Kurečič, Karin Stana-Kleinschek
Izvirni znanstveni članek
Oznake: polytetrafluoroethylene;fluorine depletion;hydrogen plasma;VUV radiation;surface modification;hydrophilic;
Defluorination of polytetrafluoroethylene (PTFE) surface film is a suitable technique for tailoring its surface properties. The influence of discharge parameters on the surface chemistry was investigated systematically using radio-frequency inductively coupled H$_2$ plasma sustained in the E- and H- ...
Leto: 2020 Vir: Naravoslovnotehniška fakulteta (UL NTF)
Melting point of dried gold nanoparticles prepared with ultrasonic spray pyrolysis and lyophilisation
Žiga Jelen, Marcin Krajewski, Franc Zupanič, Peter Majerič, Tilen Švarc, Ivan Anžel, Jernej Ekar, Sz-Chian Liou, Jerzy Kubacki, Mateusz Tokarczyk, Rebeka Rudolf
Izvirni znanstveni članek
Oznake: zlati nanodelci;tališče;ultrazvočna razpršilna piroliza;karakterizacija;gold nanoparticles;melting point;ultrasonic spray pyrolysis;characterisation;
A coupled process of ultrasonic spray pyrolysis and lyophilisation was used for the synthesis of dried gold nanoparticles. Two methods were applied for determining their melting temperature: uniaxial microcompression and differential scanning calorimetry (DSC) analysis. Uniaxial microcompression res ...
Leto: 2023 Vir: Fakulteta za strojništvo (UM FS)
Št. zadetkov: 8
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