The optical and gas-sensitive properties of opal-like structures based on SnO2 |
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| Authors: | E. A. Bondarenko S. A. Bondarenko N. I. Kargin V. F. Gromov T. V. Belysheva E. Yu. Spiridonova L. V. Mikhnev L. I. Trakhtenberg |
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| Affiliation: | 1.Karpov Research Institute of Physical Chemistry,Moscow,Russia;2.Moscow State Institute of Engineering Physics (National Research Nuclear University),Moscow,Russia;3.North-Caucasus State Technical University,Stavropol,Russia;4.Semenov Institute of Chemical Physics,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | Opal-like materials based on tin dioxide were prepared, and their structural and sensor characteristics were studied. The optical transmission spectra of opal-like structures based on SnO2 were recorded, and the volume fraction occupied in them by tin dioxide was estimated. It was shown that structures based on SnO2 contained a photon stop-zone in the visible spectrum range. The sensor properties of the materials toward CO and H2 were studied over the temperature range 375−425°C. The SnO2 samples studied had much higher sensitivity to CO compared with SnO2 materials without opal-like structures. |
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