Improving gas sensing by CdTe decoration of individual Aerographite microtubes
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STROBEL, Julian; GHIMPU, Lidia; POSTICA, Vasilie; 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, nr. 6(30), p. 0. ISSN 0957-4484.
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Nanotechnology
Numărul 6(30) / 2019 / ISSN 0957-4484

Improving gas sensing by CdTe decoration of individual Aerographite microtubes


DOI: 10.1088/1361-6528/aaf0e7
Pag. 0-0

Strobel Julian1, Ghimpu Lidia2, Postica Vasilie3, 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 Ghitu Institute of Electronic Engineering and Nanotechnology,
3 Technical University of Moldova,
4 Friedrich-Schiller-Universität 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