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Collection's Items (Sorted by Submit Date in Descending order): 1 to 12 of 12
Özkol, Engin , Procel, Paul , Zhao, Yifeng , Mazzarella, Luana , Medlín, Rostislav , Šutta, Pavol , Isabella, Olindo , Zeman, Miro
Effective Passivation of Black Silicon Surfaces via Plasma-Enhanced Chemical Vapor Deposition Grown Conformal Hydrogenated Amorphous Silicon Layer

Solar cells based on black silicon (b-Si) are proven to be promising in photovoltaics (PVs) by exceeding 22%efficiency. To reach high efficiencies with b-Si surfaces, the most crucial step is the effective surface passivation. Up to now, the highest effective minority carrier lifetimes&...

Siddheswaran, R. , Medlín, Rostislav , Jeyanthi, C. Esther , Gokul Raj, S. , Mangalaraja, Ramalinga Viswanathan
Structural, morphological, optical and magnetic properties of RF sputtered Co doped ZnO diluted magnetic semiconductor for spintronic applications

This article reports the fabrication and characterization of thin films of pure and cobalt doped ZnO (Co at 4% and 7%), a transparent diluted magnetic semiconductor (DMS) grown on ‘Si’ and glass substrates by RF magnetron sputtering technique. The crystalline structure and phase of...

Hornak, Jaroslav , Mentlík, Václav , Trnka, Pavel , Šutta, Pavol
Synthesis and diagnostics of nanostructured micaless microcomposite as a prospective insulation material for rotating machines

This paper deals with the topic of composite insulation materials for rotating machines and it is primarily pointed to the synthesis of new three-component insulation system. In connection with this research, the basic components of the insulation system are selected and described by&#x...

Prušáková, Lucie , Šutta, Pavol , Medlín, Rostislav , Vincze, Andrej
Structural analysis of silicon nanostructures obtained from thermal annealing of PVD deposited SRO/SiO2 multilayers

We report the synthesis and characterization of silicon nanostructures obtained by thermal annealing of silicon-rich oxide/silicon dioxide (SRO/SiO2) multilayers deposited by magnetron sputtering in an argon and oxygen atmosphere. The main motivation to study silicon comes from its success a...

Vála, Lukáš , Medlín, Rostislav , Koštejn, Martin , Karatodorov, Stefan , Jandová, Věra , Vavruňková, Veronika , Křenek, Tomáš
Laser-Induced Reactive Deposition of Nanostructured CoS2- and Co2CuS4-Based Films with Fenton Catalytic Properties

Highly polymorphic cobalt sulfide represents attractive material because of its unique electronic, optical, magnetic, mechanical and catalytic properties. Pulsed laser irradiation of a solid CoS2 target results in ablation and deposition of thin films on Ta and Cu substrate, which were analy...

Novák, Petr
Possibilities of Increasing the Usability of Sputtered AZO Films as a Transparent Electrode

Aluminum-doped zinc oxide (AZO) is a promising candidate to replace ITO film as transparent electrode. Due to its lower price it is applied in the production of silicon solar cells, however, it is difficult to obtain suitable electrical properties at low deposition temperatures. Mo...

Tian, Yilei , Vismara, Robin , Van Doorene, Steve , Šutta, Pavol , Vančo, Ľubomír , Veselý, Marián , Vogrinčič, Peter , Isabella, Olindo , Zeman, Miro
Oxidation-Induced Structure Transformation: Thin-Film Synthesis and Interface Investigations of Barium Disilicide toward Potential Photovoltaic Applications

Barium di-silicide (BaSi2) has been regarded as a promising absorber material for high-efficiency thin-film solar cells. However, it has confronted issues related to material synthesis and quality control. Here, we fabricate BaSi2 thin films via an industrially applicable sputtering process and&#...

Rezek, Jiří , Novák, Petr , Houška, Jiří , Pajdarová, Andrea Dagmar , Kozák, Tomáš
High-rate reactive high-power impulse magnetron sputtering of transparent conductive Al-doped ZnO thin films prepared at ambient temperature

Reactive high-power impulse magnetron sputtering was used for high-rate (deposition rate of 60 nm/min) deposition of conductive (resistivity of 0.003 Ω·cm) and optically transparent (extinction coefficient at the wavelength of 550 nm of 0.01) ZnO:Al thin films at ambient temperature (<&#x...

Novák, Petr , Očenášek, Jan , Kozák, Tomáš , Savková, Jarmila
Identifikace elektrických vlastností podle tloušťky v vrstvě oxidu zinečnatého dopovaného hliníkem naprašovaného při 100 ° C

This work presents a detailed study of aluminium-doped zinc oxide thin films sputtered at 100 °C, with a focus on the correlation between structural and electrical properties. The structural properties are identified by SEM microscopy and X-ray diffraction, while the electrical properties ...

Irfan, Muhammad , Azam, Sikander A. , Hussain, Safdar S. , Khan, Saleem Ayaz , Sohail, Mohammad , Makhdoom, Madiha , Ali, Zaheer , Kityk, Iwan V. , Muhammad, Shabbir , Al-Sehemi, Abdullah Ghodran M.
Vliv Coulombových interakcí na optoelektronické a magnetické vlastnosti nových sloučenin A2V2O7 (A = Fe a Co

Optical and magnetic features of the A2V2O2 (A = Fe and Co) compounds are explored. Density functional theory (DFT) within a framework of FPLAPW (full-potential linearized augmented plane wave) method, as well as generalized gradient approximation plus the Hubbard parameter (GGA+U) and ...

Novák, Petr , Kozák, Tomáš , Šutta, Pavol , Kolega, Michal , Bláhová, Olga
Influence of oxygen on the resistivity of co-sputtered transparent AZO films

In the present work co-sputtering from ceramic and metallic targets is used to reduce the oxygen content in aluminium doped zinc oxide. Films with thickness between 200 and 220 nm are sputtered at 100 and 250 °C and investigated by X-ray diffraction, energy dispersive spectros...

Luptáková, Dominika , Pluháček, Tomáš , Petřík, Miloš , Novák, Jiří , Palyzová, Andrea , Sokolová, Lucie , Škríba, Anton , Šedivá, Blanka , Lemr, Karel , Havlíček, Vladimír
Non-invasive and invasive diagnoses of aspergillosis in a rat model by mass spectrometry

Invasive pulmonary aspergillosis results in 450,000 deaths per year and complicates cancer chemotherapy, transplantations and the treatment of other immunosuppressed patients. Using a rat model of experimental aspergillosis, the fungal siderophores ferricrocin and triacetylfusarinine C were identified as m...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 12 of 12