Browsing 2005 by Subject "gas sensors"

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  • Chalcogenide semiconductors as gas sensors 
    TSIULYANU, Dumitru (Technical University of Moldova, 2005)
    A brief survey of experimental results to gas sensing with chalcogenide semiconductor based devices is given. It is pointed out that physical phenomena such as electrical conductivity can be coupled to chemical reactions ...
  • Effect of contacts and thickness on the NO2 sensing properties of tellurium based films 
    TSIULYANU, Alexantru (Technical University of Moldova, 2005)
    The influence of contacting materials, and thickness of the tellurium based films on their electrical conductivity and sensitivity to NO2 is given. It is shown that until thickness is below 100 nm the conductivity increases ...
  • Epitaxial In2O3 layers for chemical sensors: structural and surface characterization 
    BRINZARI, V.; KOROTCENKOV, G.; MASEK, K.; MATOLIN, V.; LIBRA, J.; KAMEI, M. (Technical University of Moldova, 2005)
    Indium oxide is one of the basic oxides, which have been extensively studied [1-3] due to its prominent applications for gas sensor design, and as modeling material, possessed of some interesting chemical and structural ...
  • Gas sensors research and control system 
    BRAGARENCO, A.; PLOTNIC, P.; SONTEA, V. (2005)
    An installation for the gas sensors research has been made. The installation is connected to the computer by AT90S8535 microprocesor. The device allows obtaining the following dependences simultaneously: sensibility ...
  • Hydrogen detector based on GaN nanocones 
    POPA, V.; VOLCIUC, O.; SONTEA, V.; TIGINYANU, I. M. (Technical University of Moldova, 2005)
    In this paper, we demonstrate that using GaN nanocone morphology obtained by photo electrochemical etching, it is possible to obtain very stable and easy in manufacturing gas sensors, in particular for hydrogen detection.

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