Publisher DOI: 10.1088/1361-6528/aaf0e7
Title: Improving gas sensing by CdTe decoration of individual Aerographite microtubes
Language: English
Authors: 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 
Kienle, Lorenz 
Issue Date: 8-Feb-2019
Source: Nanotechnology 6 (30): 065501 (2019-02-08)
Journal or Series Name: Nanotechnology 
Abstract (english): 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.
ISSN: 0957-4484
Institute: Kunststoffe und Verbundwerkstoffe M-11 
Type: (wissenschaftlicher) Artikel
Funded by: DFG FOR1616,271608950,FOR2093
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