Simo, AKaviyarasu, KMwakikunga, Bonex WMadjoe, RGibaud, AMaaza, M2018-12-112018-12-112017-04Simo, A. et al. 2017. Phase transition study in strongly correlated VO2 based sensing systems. Journal of Electron Spectroscopy and Related Phenomena, vol. 216: 23-320368-20481873-2526http://dx.doi.org/10.1016/j.elspec.2017.01.011https://www.sciencedirect.com/science/article/pii/S0368204816301566?via%3Dihubhttps://doi.org/10.1016/j.elspec.2017.01.011http://hdl.handle.net/10204/10588Copyright: 2017 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website.Intermediate phase monoclinic M2 was observed by inducing in situ X-ray thermo diffraction on VO2 (M) nanoplatelets. The solid-solid phase transition occurs at around 65 °C assisted with the percolative transition metal-insulator. The existence of an intermediate crystalline phase with room temperature insulator phase and high temperature metallic phase across MIT in VO2 could be of relevance to understand structural contributions to the phase transition dynamics. In addition, pellet of VO2 nanostructures have shown to present good sensing properties to various alcohols vapors at room temperature and good selectivity of methanol with 5.54% sensitivity and limit detection below 5 ppm, compared to isopropanol 3.2% and acetone 2.4% respectively.enMott type oxidesVanadium dioxideAlcohols sensorsVolatile organic compoundRoom temperatureArticleSimo, A., Kaviyarasu, K., Mwakikunga, B. W., Madjoe, R., Gibaud, A., & Maaza, M. (2017). Phase transition study in strongly correlated VO2 based sensing systems. http://hdl.handle.net/10204/10588Simo, A, K Kaviyarasu, Bonex W Mwakikunga, R Madjoe, A Gibaud, and M Maaza "Phase transition study in strongly correlated VO2 based sensing systems." (2017) http://hdl.handle.net/10204/10588Simo A, Kaviyarasu K, Mwakikunga BW, Madjoe R, Gibaud A, Maaza M. Phase transition study in strongly correlated VO2 based sensing systems. 2017; http://hdl.handle.net/10204/10588.TY - Article AU - Simo, A AU - Kaviyarasu, K AU - Mwakikunga, Bonex W AU - Madjoe, R AU - Gibaud, A AU - Maaza, M AB - Intermediate phase monoclinic M2 was observed by inducing in situ X-ray thermo diffraction on VO2 (M) nanoplatelets. The solid-solid phase transition occurs at around 65 °C assisted with the percolative transition metal-insulator. The existence of an intermediate crystalline phase with room temperature insulator phase and high temperature metallic phase across MIT in VO2 could be of relevance to understand structural contributions to the phase transition dynamics. In addition, pellet of VO2 nanostructures have shown to present good sensing properties to various alcohols vapors at room temperature and good selectivity of methanol with 5.54% sensitivity and limit detection below 5 ppm, compared to isopropanol 3.2% and acetone 2.4% respectively. DA - 2017-04 DB - ResearchSpace DO - 10.1016/j.elspec.2017.01.011 DP - CSIR KW - Mott type oxides KW - Vanadium dioxide KW - Alcohols sensors KW - Volatile organic compound KW - Room temperature LK - https://researchspace.csir.co.za PY - 2017 SM - 0368-2048 SM - 1873-2526 T1 - Phase transition study in strongly correlated VO2 based sensing systems TI - Phase transition study in strongly correlated VO2 based sensing systems UR - http://hdl.handle.net/10204/10588 ER -