NO2 sensing properties of thermally or UV activated In2O3 nano-octahedra

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Abstract

In the present work, we have synthesized single crystalline In2O3octahedra via a vapour phase transport at high temperatures over Si/SiO2substrates. Gas sensing measurements (NO2) have been performed under temperature variations and UV irradiation. Optimum working conditions for each case have been found. A comparison between nanostructured In2O3and commercial In2O3powder has been performed in order to show the advantages of using a nanostructured based sensor. As a result, the detection of low concentrations of NO2(50 ppb) has found to be possible with sensitivities for higher concentrations comparable to those shown in recent publications.

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APA

Gonzalez, O., Roso, S., Calavia, R., Vilanova, X., & Llobet, E. (2015). NO2 sensing properties of thermally or UV activated In2O3 nano-octahedra. In Procedia Engineering (Vol. 120, pp. 773–776). Elsevier Ltd. https://doi.org/10.1016/j.proeng.2015.08.817

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