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1.
The role of lattice defects on the optical properties of TiO[sub]2 nanotube arrays for synergistic water splitting
Manel Machreki, Takwa Chouki, Georgi Tyuliev, Mattia Fanetti, Matjaž Valant, Denis Arčon, Matej Pregelj, Saim Emin, 2023, izvirni znanstveni članek

Opis: In this study, we report a facile one-step chemical method to synthesize reduced titanium dioxide (TiO2) nanotube arrays (NTAs) with point defects. Treatment with NaBH4 introduces oxygen vacancies (OVs) in the TiO2 lattice. Chemical analysis and optical studies indicate that the OV density can be significantly increased by changing reduction time treatment, leading to higher optical transmission of the TiO2 NTAs and retarded carrier recombination in the photoelectrochemical process. A cathodoluminescence (CL) study of reduced TiO2 (TiO2–x) NTAs revealed that OVs contribute significantly to the emission bands in the visible range. It was found that the TiO2 NTAs reduced for a longer duration exhibited a higher concentration of OVs. A typical CL spectrum of TiO2 was deconvoluted to four Gaussian components, assigned to F, F+, and Ti3+ centers.
Ključne besede: TiO2 nanotubes, defects, cathodoluminescence
Objavljeno v RUNG: 13.12.2023; Ogledov: 230; Prenosov: 6
.pdf Celotno besedilo (5,75 MB)
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Surface roughness and wetting properties of plastic pipes : Proof-of-concept experiment report
Andraž Mavrič, Mattia Fanetti, Simone Dal Zilio, 2022, končno poročilo o rezultatih raziskav

Ključne besede: surface roughness, wetting
Objavljeno v RUNG: 21.03.2023; Ogledov: 758; Prenosov: 0
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Composites of transition metal dichalcogenides and topological insulators as a new class of catalytic materials
Jelena Rmuš, Blaž Belec, Igor Milanović, Mattia Fanetti, Sandra Gardonio, Matjaž Valant, Sandra V. Kurko, 2022, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: composites, topological insulators
Objavljeno v RUNG: 13.02.2023; Ogledov: 854; Prenosov: 0
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A comparative study of nanolaminate CrN/Mo2N and CrN/W2N as hard and corrosion resistant coatings
Marco Beltrami, Andraž Mavrič, Simone Dal Zilio, Mattia Fanetti, Gregor Kapun, Marco Lazzarino, Orfeo Sbaizero, Miha Čekada, 2013, izvirni znanstveni članek

Opis: Nanolaminate coatings (NLC) consisting of alternated CrN coupled with either cubic tungsten nitride (β-W2N) or molybdenum nitride (γ-Mo2N) were deposited on cold worked tool steel substrates using reactive DC reactive magnetron sputtering for improved mechanical and corrosion resistance. The CrN/γ-Mo2N and CrN/β-W2N nanolaminate systems were found to perform better than the corresponding single-layer systems, with both mechanical and electrochemical properties improving by decreasing the individual layer thickness from 100 to 5 nm. The CrN/β-W2N NLC combined the high hardness value of W2N with the low corrosion current of CrN. The CrN/γ-Mo2N NLC showed synergistic improvements consisting of both higher hardness and lower corrosion currents with respect to the constituent materials alone. The dependence of mechanical and corrosion properties on the bilayer period is discussed in terms of the grain size, residual stresses and texture of the constituent materials and the nanostructured character of the multilayer architecture.
Ključne besede: Nanolayered coatings, Transition metal nitrides, Sputtering, Nanoindentation, Corrosion resistance, Mechanical properties
Objavljeno v RUNG: 12.01.2023; Ogledov: 1029; Prenosov: 0
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Unravelling the electronic properties of Bi2Se3-Bi2S3 quasi binary system
Matjaž Valant, Sandra Gardonio, Rini Benher Zipporah, Mattia Fanetti, 2022, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: topološki izolatorji, selenidi, elektronske lastnosti
Objavljeno v RUNG: 30.11.2022; Ogledov: 1042; Prenosov: 0
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Explotation of Localized Surface Plasmon Resonance for Detection of nanoparticle's topological surface states
Blaž Belec, Mattia Fanetti, Sandra Gardonio, Matjaž Valant, 2022, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: topological insulator, bismuth selenide
Objavljeno v RUNG: 27.09.2022; Ogledov: 1085; Prenosov: 0
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Topological insulator nanoparticles : material with prospect for photo-thermal applications
Blaž Belec, Nina Kostevšek, Giulia Della Pelle, Sandra Gardonio, Mattia Fanetti, Matija Valant, 2022, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: topological insulators, nanomaterials, photo-thermal
Objavljeno v RUNG: 27.06.2022; Ogledov: 1045; Prenosov: 6
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