Improving gas sensing by CdTe decoration of individual Aerographite microtubes

Strobel, Julian, Ghimpu, Lidia, Postica, Vasile, Lupan, Oleg, Zapf, Maximilian, Schönherr, Sven, Röder, Robert, Ronning, Carsten, Schütt, Fabian, Mishra, Yogendra Kumar, Tiginyanu, Ion, Adelung, Rainer, Marx, Janik, Fiedler, Bodo and Kienle, Lorenz (2018) Improving gas sensing by CdTe decoration of individual Aerographite microtubes Nanotechnology, 30 (6). 065501. DOI 10.1088/1361-6528/aaf0e7.

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Supplementary data:


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.

Document Type: Article
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
DOI etc.: 10.1088/1361-6528/aaf0e7
ISSN: 0957-4484
Projects: Future Ocean
Date Deposited: 16 Jan 2019 09:43
Last Modified: 17 Jan 2019 09:03

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