Prohlížení Publikační činnost ČVUT dle autora "Laposa A."
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A chemiresistive sensor array based on polyaniline nanocomposites and machine learning classification
Autor: Kroutil J.; Laposa A.; Ahmad A.; Voves J.; Povolný V.; Klimsa L.; Davydova M.; Husák M.
(Beilstein-Institut zur Förderung der Chemischen Wissenschaften, 2022)The selective detection of ammonia (NH3), nitrogen dioxide (NO2), carbon oxides (CO2 and CO), acetone ((CH3)2CO), and toluene (C6H5CH3) is investigated by means of a gas sensor array based on polyaniline nanocomposites. ... -
D. Hrakova, P. Ripka, A. Laposa, D. Novotny, J. Kroutil, V. Povolný, O. Kaman, P. Veverka
Autor: Hrakova D.; Ripka P.; Laposa A.; Novotný D.; Kroutil J.; Povolný V.; Kaman O.; Veverka P.
(Elsevier, 2022)Non-planar fluxgate sensors measuring the magnetic fields in the uT range are required for electric current, position, and torque transducers. We report the first sensor based on an inkjet-printed 17 mm diameter ring core. ... -
EVALUATION OF INKJET PRINTED HEATERS ARRAY FOR CHEMO-RESISTIVE GAS SENSOR
Autor: Povolný V.; Laposa A.; Kroutil J.; Voves J.; Ashcheulov P.; Hazdra P.
(TANGER, 2024)Heaters are an indispensable part of gas sensing platforms. It serves to heat the sensor, which increases the sensitivity of the active layer and helps in the desorption of the detected gas. The sensors are also heated to ... -
EVALUATION OF PRINTED INTERDIGITAL ELECTRODES ARRAY FOR CHEMO-RESISTIVE GAS SENSOR APPLICATION
Autor: Povolný V.; Laposa A.; Kroutil J.; Voves J.; Davydova M.; Hazdra P.
(TANGER, 2022)The article presents the design and preparation of a platform for a gas sensor application based on the ink print of silver nanoparticles on flexible substrates. -
Flexible ammonia gas sensor based on polyaniline
Autor: Pošta A.; Náhlík J.; Laposa A.; Voves J.
(TANGER, 2019)In this paper we prepared flexible ammonia (NH3) gas sensor based on polyaniline (PAni) as an active sensing thin film layer. The sensors function was based on chemiresistive principle with thin film deposited on top of ... -
Gas-sensing behaviour of ZnO/diamond nanostructures
Autor: Davydova M.; Laposa A.; Šmarhák J.; Kromka A.; Neykova N.; Náhlík J.; Kroutil J.; Drahokoupil J.; Voves J.
(Beilstein-Institut zur Förderung der Chemischen Wissenschaften, 2018)Microstructured single- and double-layered sensor devices based on p-type hydrogen-terminated nanocrystalline diamond (NCD) films and/or n-type ZnO nanorods (NRs) have been obtained via a facile microwave-plasma-enhanced ... -
A High Sensitivity UV Photodetector With Inkjet Printed ZnO/Nanodiamond Active Layers
Autor: Náhlík J.; Laposa A.; Voves J.; Kroutil J.; Drahokoupil J.D.; Davydová M.D.
(IEEE Sensors Council, 2019)The single- and double-layered photodetectorsbased on ZnO and/or detonation nanodiamond (DND) have beendeveloped via a sequential inkjet printing on the interdigital elec-trode platform using a diamond and zinc ... -
An Inkjet Printed ZnO Based Gas Senor on a Flexible High Temperature Substrate for NO2 Sensing
Autor: Knoll M.; Offenzeller Ch.; Jakoby B.; Kulha P.; Laposa A.; Hilber H.
(IEEE, 2019)In this work we demonstrate the realization of a simple and low cost NO 2 gas sensor on a flexible polymer substrate. The sensor was fabricated using inkjet printing and hydrothermal growth and consists of a printed ... -
Inkjet Seeded CVD-Grown Hydrogenated Diamond Gas Sensor Under UV-LED Illumination
Autor: Laposa A.; Kroutil J.; Davydova M.; Taylor A.; Voves J.; Klimsa L.; Kopecek J.; Husák M.
(IEEE Sensors Council, 2020)Hydrogen-terminated diamond gas sensors have been prepared by selective deposition of nanodiamond ink using direct inkjet printing on interdigital electrodes, followed by chemical vapor deposition growth of a nanoctrystalline ... -
Low-resistance ohmic contacts on boron-doped {113} oriented homoepitaxial diamond layers
Autor: Hazdra P.; Laposa A.; Šobáň Z.; Voves J.; Lambert N.; Davydova M.; Povolný V.; Taylor A.; Mortet V.
(Elsevier Science, 2022)Refractory metals (titanium, molybdenum, and zirconium) with a gold overlayer were used to form ohmic contacts on {113}-oriented boron-doped diamond epitaxial layers. Morphology and thickness of deposited layers were ... -
Low-resistance ohmic contacts on boron-doped {113} oriented homoepitaxial diamond layers
Autor: Hazdra P.; Laposa A.; Šobáň Z.; Voves J.; Lambert N.; Davydova M.; Povolný V.; Taylor A.; Mortet V.
(Elsevier Science, 2022)Refractory metals (titanium, molybdenum, and zirconium) with a gold overlayer were used to form ohmic contacts on {113}-oriented boron doped diamond epitaxial layers (boron concentration ranging from 1019 to 1021 cm−3). ... -
Performance Evaluation of Low-Cost Flexible Gas Sensor Array with Nanocomposite Polyaniline Films
Autor: Kroutil J.; Laposa A.; Voves J.; Davydova M.; Náhlík J.; Kulha P.; Husák M.
(IEEE Sensors Council, 2018)The aim of this paper is to present the design of a sensor array based on a single substrate with various composite polymer films as active layers for gas detection. A low power, four element flexible sensor platform with ... -
Power Diode Structures Realized on (113) oriented Boron Doped Diamond
Autor: Hazdra P.; Laposa A.; Šobáň Z.; Povolný V.; Voves J.; Lambert N.; Taylor A.; Mortet V.
(České centrum Institution of Engineering and Technology, 2023)The article deals with the preparation and characterization of ohmic contacts, pseudo-vertical, and vertical Schottky barrier diodes on (113) oriented boron doped diamond. -
Properties of boron-doped (113) oriented homoepitaxial diamond layers
Autor: Mortet V.; Taylor A.; Lambert N.; Gedeonová Z.; Fekete L.; Lorinčík J.; Klimša L.; Kopeček J.; Hubík P.; Šobáň Z.; Laposa A.; Davydova M.; Voves J.; Pošta A.; Povolný V.; Hazdra P.
(Elsevier Science, 2021)Although significant efforts have been dedicated to optimize the quality of epitaxial diamond layers, reported properties of diamond based electronic devices do not yet approach expected theoretical values. Recent works ... -
Pseudo-vertical Mo/Au Schottky diodes on {113} oriented boron doped homoepitaxial diamond layers
Autor: Hazdra P.; Laposa A.; Šobáň Z.; Taylor A.; Lambert N.; Povolný V.; Kroutil J.; Gedeonová Z.; Hubík P.; Mortet V.
(Elsevier Science, 2022)The article reports for the first time about the successful fabrication of pseudo-vertical diodes on {113} oriented homoepitaxial boron-doped diamond using molybdenum as a metal for both the Schottky and ohmic contacts. ... -
Pseudo-vertical Schottky diode with ruthenium contacts on (113) boron-doped homoepitaxial diamond layers
Autor: Hazdra P.; Laposa A.; Šobáň Z.; Kroutil J.; Lambert N.; Povolný V.; Taylor A.; Mortet V.
(WILEY-V C H VERLAG GMBH, 2023)In this article, the electrical properties of pseudo-vertical Schottky barrier diodes (pVSBDs) prepared on (113)–oriented boron-doped diamond layers using ruthenium for both the ohmic and Schottky contacts were investigated. -
Vertical Schottky diode on (113) oriented homoepitaxial diamond
Autor: Hazdra P.; Laposa A.; Šobáň Z.; Alam M.; Povolný V.; Mortet V.
(Elsevier Science, 2024)The article presents for the first time vertical Schottky diodes which were fabricated on (113) oriented diamond substrates produced from thick heavily boron-doped diamond layers grown on high-pressure high-temperature ...