Počet záznamů: 1
Preparation of heterogenous copper-titanium oxides for chemiresistor applications
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SYSNO ASEP 0538349 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Preparation of heterogenous copper-titanium oxides for chemiresistor applications Tvůrce(i) Torrisi, A. (PL)
Horák, Pavel (UJF-V) RID, ORCID
Vacík, Jiří (UJF-V) RID, ORCID, SAI
Cannavó, Antonino (UJF-V) ORCID, SAI
Ceccio, Giovanni (UJF-V) ORCID, RID, SAI
Yatskiv, Roman (URE-Y) RID, ORCID
Kupčík, Jaroslav (UCHP-M) RID, ORCID, SAI
Fara, J. (CZ)
Fitl, P. (CZ)
Vlček, J. (CZ)
Vrňata, M. (CZ)Celkový počet autorů 11 Zdroj.dok. Materials Today: Proceedings, 33. - Amsterdam : Elsevier, 2020 - ISSN 2214-7853 Rozsah stran s. 2512-2516 Poč.str. 5 s. Forma vydání Tištěná - P Akce Symposium M on Metal Oxide- and Oxyhydride-Based Nanomaterials for Energy and Environment-Related Applications of the E-MRS Fall Meeting Datum konání 16.09.2019 - 19.09.2019 Místo konání Warsaw Země PL - Polsko Typ akce EUR Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova chemiresistors ; gas sensing ; P-n heterojuntions ; ion beam sputtering ; CuO ; TiO2 Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače Obor OECD Nuclear physics Vědní obor RIV – spolupráce Ústav fotoniky a elektroniky - Elektronika a optoelektronika, elektrotechnika
Ústav chemických procesů - Fyzikální chemie a teoretická chemieCEP LM2015056 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA19-02804S GA ČR - Grantová agentura ČR Institucionální podpora UJF-V - RVO:61389005 ; URE-Y - RVO:67985882 ; UCHP-M - RVO:67985858 UT WOS 000599991700018 DOI 10.1016/j.matpr.2020.05.061 Anotace Metal oxide based gas sensors (MOS) found a wide application as modular parts in microelectronic devices due to their technological compatibility, low cost and outstanding sensing capabilities to different chemical species. The functionality of such chemiresistors consists of a change of the electric resistance/impedance of a semiconducting sensitive layer when gases with either oxidizing or reducing properties appear in the surrounding atmosphere. Earlier, the majority of the investigated chemiresistors were based on single phase, homogenous semiconductors. The combination of two different phases and hence the implementation of heterojunctions (HJs) on chemiresistors offers a way to increase the sensor performance, especially the sensitivity of the sensor. In this work, chemiresistors based on CuO-TiO2 acting as p-n heterojunction were developed. Thin sensitive layers were deposited by a two-step process. Cu Ti thin layers were prepared by ion beam sputtering using an Ar ion beam and, subsequently, oxidized by thermal annealing in air at 400 degrees C for 7 h. The stoichiometry of the metallic films was analyzed by the Rutherford Back-scattering (RBS) using 2 MeV alpha-particles. The gas sensing properties of the oxidic thin films (deposited on prefabricated substrates containing interdigital electrodes) were analyzed in an atmosphere containing 100 ppm of either methanol, hydrogen and acetaldehyde or 10.6 ppm of nitrogen dioxide. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2021
Počet záznamů: 1