Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Martin, Vrňata"'
Publikováno v:
Chemosensors, Vol 12, Iss 6, p 99 (2024)
Modification of an electrode surface with a selective layer leads to amplification of the electrochemical signal. A film derived from electrochemically oxidized 3-(4-trifluoromethyl)-phenyl)-thiophene deposited on a graphite electrode (ThPhCF3/G) was
Externí odkaz:
https://doaj.org/article/5242995d454f4a6eada1c93b44d73c40
Autor:
Martin Hruška, Joris More-Chevalier, Přemysl Fitl, Michal Novotný, Petr Hruška, Dejan Prokop, Petr Pokorný, Jan Kejzlar, Virginie Gadenne, Lionel Patrone, Martin Vrňata, Jan Lančok
Publikováno v:
Nanomaterials, Vol 12, Iss 23, p 4297 (2022)
The resolution of a quartz crystal microbalance (QCM) is particularly crucial for gas sensor applications where low concentrations are detected. This resolution can be improved by increasing the effective surface of QCM electrodes and, thereby, enhan
Externí odkaz:
https://doaj.org/article/91d09140eb1d4e47804f40392d887b08
Autor:
Michal Novotný, Jan Remsa, Šárka Havlová, Joris More-Chevalier, Stefan Andrei Irimiciuc, Sergii Chertopalov, Petr Písařík, Lenka Volfová, Přemysl Fitl, Tomáš Kmječ, Martin Vrňata, Ján Lančok
Publikováno v:
Materials, Vol 14, Iss 24, p 7576 (2021)
Eu3+-doped oxide thin films possess a great potential for several emerging applications in optics, optoelectronics, and sensors. The applications demand maximizing Eu3+ photoluminescence response. Eu-doped ZnO, TiO2, and Lu2O3 thin films were deposit
Externí odkaz:
https://doaj.org/article/16e00b165a7946e0995e45a39f13bb26
Autor:
Tatiana V. Shishkanova, Tomáš Tobrman, Jaroslav Otta, Gabriela Broncová, Přemysl Fitl, Martin Vrňata
Publikováno v:
Journal of Materials Science. 57:17870-17882
Autor:
Alfio Torrisi, Jiří Vacík, Giovanni Ceccio, Antonino Cannavò, Vasily Lavrentiev, Pavel Horák, Roman Yatskiv, Jan Vaniš, Jan Grym, Ladislav Fišer, Martin Hruška, Přemysl Fitl, Jaroslav Otta, Martin Vrňata
Publikováno v:
Chemosensors, Vol 9, Iss 9, p 246 (2021)
Chemiresistors based on thin films of the Li-doped CuO–TiO2 heterojunctions were synthesized by a 2-step method: (i) repeated ion beam sputtering of the building elements (on the Si substrates and multisensor platforms); and (ii) thermal annealing
Externí odkaz:
https://doaj.org/article/d8bc7b8f6c6a4a5daca0ad958f1d68c3
Autor:
David Tomeček, Lesia Piliai, Martin Hruška, Přemysl Fitl, Virginie Gadenne, Mykhailo Vorokhta, Iva Matolínová, Martin Vrňata
Publikováno v:
Chemosensors, Vol 9, Iss 9, p 237 (2021)
In this work, we present a complex study of photoregeneration of a zinc phthalocyanine (ZnPc) sensor by illumination from light-emitting diodes (LEDs). It includes an investigation of photoregeneration effectivity for various wavelengths (412–723 n
Externí odkaz:
https://doaj.org/article/acc229c7eda04a3ebb6367d38f7e73b6
Autor:
Lesia Piliai, David Tomeček, Martin Hruška, Ivan Khalakhan, Jaroslava Nováková, Přemysl Fitl, Roman Yatskiv, Jan Grym, Mykhailo Vorokhta, Iva Matolínová, Martin Vrňata
Publikováno v:
Sensors, Vol 20, Iss 19, p 5602 (2020)
In this work, we investigate ethanol (EtOH)-sensing mechanisms of a ZnO nanorod (NRs)-based chemiresistor using a near-ambient-pressure X-ray photoelectron spectroscopy (NAP-XPS). First, the ZnO NRs-based sensor was constructed, showing good performa
Externí odkaz:
https://doaj.org/article/a0214dd4aa104011b91b764d47148a88
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:
Dominika Zákutná, Irina A. Kühne, Jaroslav Otta, Ladislav Fekete, Přemysl Fitl, Martin Vrňata, Jan Vlček, Eva Marešová
Publikováno v:
CrystEngComm. 23:7237-7244
This work presents a temperature-dependent phase composition study of thin films (200 nm) of fluorinated zinc phthalocyanines (4F, 16F) deposited on fused silica and Si(100). The studied films were prepared using various substrate temperatures, Tsubs
Autor:
Tatiana V. Shishkanova, Gabriela Broncová, Nina Habanová, Přemysl Fitl, Martin Vrňata, Pavel Matějka, Michal Řezanka
Publikováno v:
Electroanalysis. 32:767-774