Improving gas sensing by CdTe decoration of individual Aerographite microtubes

Strobel Julian; Ghimpu Lidia; Postica Vasile; Lupan Oleg; Zapf Maximilian; Schonherr Sven; Roder Robert; Ronning Carsten; Schutt Fabian; Mishra Yogendra Kumar; Tiginyanu Ion; Adelung Rainer; Marx Janik; Fiedler Bodo; Kienle Lorenz

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808

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STROBEL, Julian, GHIMPU, Lidia, POSTICA, Vasile, LUPAN, Oleg, ZAPF, Maximilian, SCHONHERR, Sven, RODER, Robert, RONNING, Carsten, SCHUTT, Fabian, MISHRA, Yogendra Kumar, TIGINYANU, Ion, ADELUNG, Rainer, MARX, Janik, FIEDLER, Bodo, KIENLE, Lorenz. Improving gas sensing by CdTe decoration of individual Aerographite microtubes. In: Nanotechnology, 2019, vol. 30, p. 0. ISSN 0957-4484. DOI: https://doi.org/10.1088/1361-6528/aaf0e7

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Nanotechnology

Volumul 30 / 2019 / ISSN 0957-4484

Improving gas sensing by CdTe decoration of individual Aerographite microtubes

DOI:https://doi.org/10.1088/1361-6528/aaf0e7

Pag. 0-0

Strobel Julian¹, Ghimpu Lidia², Postica Vasile³, Lupan Oleg¹³, Zapf Maximilian⁴, Schonherr Sven⁴, Roder Robert⁴, Ronning Carsten⁴, Schutt Fabian¹, Mishra Yogendra Kumar¹, Tiginyanu Ion³, Adelung Rainer¹, Marx Janik⁵, Fiedler Bodo⁵, Kienle Lorenz¹

¹ Institute for Material Science, Christian-Albrechts-University of Kiel,
² Institute of the Electronic Engineering and Nanotechnologies "D. Ghitu",
³ Technical University of Moldova,
⁴ Friedrich Schiller University Jena,
⁵ Hamburg University of Technology

Disponibil în IBN: 26 decembrie 2018

Rezumat

Novel gas sensors have been realized by decorating clusters of tubular Aerographite with CdTe using magnetron sputtering techniques. Subsequently, individual microtubes were separated and electrically contacted on a SiO₂/Si substrate with pre-patterned electrodes. Cathodoluminescence, electron microscopy and electrical characterization prove the successful formation of a polycrystalline CdTe thin film on Aerographite enabling an excellent gas response to ammonia. Furthermore, the dynamical response to ammonia exposure has been investigated, highlighting the quick response and recovery times of the sensor, which is highly beneficial for extremely short on/off cycles. Therefore, this gas sensor reveals a large potential for cheap, highly selective, reliable and low-power gas sensors, which are especially important for hazardous gases such as ammonia.

Cuvinte-cheie
mmonia, Electron microscopy, gas sensing, hybrid material, nanocomposite

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