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 SM ISO690:2012POSTICA, Vasile, PAUPORTE, Thierry, VIANA, Bruno, CAVERS, Heather, HOPPE, Mathias, ADELUNG, Rainer, LUPAN, Oleg. UV nanophotodetector based on a single ZnO:Au nanowire functionalized with Au-nanoparticles. In: Proceedings of SPIE - The International Society for Optical Engineering, 3-6 februarie 2020, San Francisco. Bellingham, USA: SPIE, 2020, Vol.11281, p. 0. ISBN 978-151063325-4. ISSN 0277786X. DOI: https://doi.org/10.1117/12.2548136 |
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 Proceedings of SPIE - The International Society for Optical Engineering Vol.11281, 2020 |
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Conferința "Oxide-based Materials and Devices XI 2020" San Francisco, Statele Unite ale Americii, 3-6 februarie 2020 | |
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| DOI:https://doi.org/10.1117/12.2548136 | |
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In this work, an individual nanowire of zinc oxide (ZnO-NW), decorated with gold nanoparticles (Au-NPs/ZnO-NW), was integrated in a nanophotodetector using a dual beam focused electron/ion beam (FIB/SEM) system. Au-NPs/ZnO-NW arrays were synthesized by one-step electrochemical deposition at relative low-temperatures (90 °C). The nanodevice fabricated with a single nanowire Au-NPs/ZnO-NW demonstrated fast detection of UV radiation up to the operating temperature of 120 °C. The improved UV sensing properties of an individual Au-NPs/ZnO-NW compared to a single, undecorated, ZnO NW was explained based on the formation of Schottky barriers at the Au/ZnO NW interface, which resulted in a much more narrowed conduction channel and a lower dark current. These results prove that high-performance hybrid nanomaterials may possess superior electrical, optical and sensing properties and are of great interest for further fundamental studies. |
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| Cuvinte-cheie Methane, Multifunctional, nanosensor, UV light, ZnO |
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