01331nas a2200157   4500008004100000245006400041210006200105260000800167300001000175490000600185520082900191100001801020700001701038700002401055856009401079       2015                        eng d00aImpedimetric humidity sensor based on ?-Fe2O3 nanoparticles0 aImpedimetric humidity sensor based on Fe2O3 nanoparticles  cJAN  a88-920 v13 a<p>Humidity sensing characteristics of thick-film sensors based on α-Fe2O3 nanoparticles synthesized by hydrothermal method have been reported. The as-synthesized α-Fe2O3 nanoparticles were characterized by using XRD, Raman spectroscopy, TEM and HRTEM. Our TEM result depicts that the size of α-Fe2O3 nanoparticles were in the range of 20–30 nm with highly crystalline nature. For humidity sensing experiment, the sensitivity of our α-Fe2O3 nanoparticles-based sensor device was found to be ∼99% and the fastest response times were noted, which indicate that the α-Fe2O3 nanoparticle-based humidity sensor device has more future prospects and demand. The humidity sensing properties of α-Fe2O3 nanoparticles seem to be associated to the sorption sites for the water molecules at the nanoparticles interfaces.</p>1 aPatil, U., V.1 aRout, C., S.1 aLate, Dattatray, J.  uhttps://library.ncl.res.in/content/impedimetric-humidity-sensor-based-fe2o3-nanoparticles