Optical and electrical characterization of CuO/ZnO heterojunctions

0525319 - ÚFE 2021 RIV CH eng J - Článek v odborném periodiku
Yatskiv, Roman - Tiagulskyi, Stanislav - Grym, Jan - Vaniš, Jan - Bašinová, Nikola - Horák, Pavel - Torrisi, Alfio - Ceccio, Giovanni - Vacík, Jiří - Vrňata, M.
Optical and electrical characterization of CuO/ZnO heterojunctions.
Thin Solid Films. Roč. 693, JAN 1 (2020), č. článku 137656. ISSN 0040-6090. E-ISSN 1879-2731.
[10th International Conference on Hot Wire (Cat) and Initiated Chemical Vapor Deposition (HWCVD). Kitakyushu, 03.09.2018-06.09.2018]
Grant CEP: GA ČR GA19-02804S
Institucionální podpora: RVO:67985882 ; RVO:61389005
Klíčová slova: Hybrid heterojunction * Hydrogen sensor * Copper oxide * Impedance spectroscopy
Obor OECD: Nano-materials (production and properties); Nano-materials (production and properties) (UJF-V)
Impakt faktor: 2.183, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.tsf.2019.137656

CuO/ZnO p-n heterojunctions are fabricated on ZnO nanorod arrays by sputtering of metallic Cu thin films and by their subsequent thermal annealing at 400 degrees C. Structural, morphological, and optical properties of both copper oxide nanocrystalline films and zinc oxide nanorod arrays are discussed with the emphasis on the electrical junction properties investigated by current-voltage and impedance spectroscopy measurements. Electrical characteristics of these junctions are sensitive to gas mixtures with a low hydrogen concentration and show fast response and recovery time. The copper oxide/zinc oxide heterojunctions are shown to be more efficient to hydrogen detection at room temperature in comparison with the resistivity sensors based on zinc or copper oxides
Trvalý link: http://hdl.handle.net/11104/0309492