Ultra-sensitive SnO2 gas sensors based on hierarchical octahedra

Abstract : The controlled hydrolysis of Sn II precursor ([Sn(NMe) 2 ] 2 ) yields micrometric Sn 3 O 2 (OH) 2 octahedra, formed by a self-assembly process. The water content and alkylamine surfactants are major parameters for the growth process. These structures have been employed to prepare highly sensitive gas sensors, which present 7% variation of their resistance at only 0.25 ppm CO.
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Justyna Jonca, Andrey Ryzhikov, Audrey Chapelle, Philippe Menini, Katia Fajerwerg, et al.. Ultra-sensitive SnO2 gas sensors based on hierarchical octahedra. IEEE Nanotechnology Materials and Devices Conference (NMDC 2016), Oct 2016, Toulouse, France. pp.1-3, ⟨10.1109/NMDC.2016.7777147⟩. ⟨hal-02046536⟩

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