title: Humidity sensing properties of ZnO-based fibers by electrospinning.
abstract: Zinc oxide (ZnO) based fibers with a diameter of 80-100 nm were prepared by electrospinning. Polyvinyl alcohol (PVA) and zinc acetate dihydrate were dissolved in water and the polymer/salt solution was electrospun at 2.5 kV cm(-1). The resulting electrospun fibers were subjected to calcination at 500°C for 2h to obtain ZnO-based fibers. Humidity sensing properties of the fiber mats were investigated by quartz crystal microbalance (QCM) method and electrical measurements. The adsorption kinetics under constant relative humidity (RH) between 10% and 90% were explained using Langmuir adsorption model. Results of the measurements showed that ZnO-based fibers were found to be promising candidate for humidity sensing applications at room temperature.
authors: İzmir Institute of Technology, Faculty of Science, Department of Chemistry, 35430 İzmir, Turkey.
authors: Nesrin
authors: N
authors: Horzum
authors: Didem
authors: D
authors: Taşçioglu
authors: Salih
authors: S
authors: Okur
authors: Mustafa M
authors: MM
authors: Demir
mesh_terms: D000162:Acoustics; D000327:Adsorption; D006813:Humidity; D007700:Kinetics; D008962:Models, Theoretical; D057139:Nanofibers / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D058525:Quartz Crystal Microbalance Techniques; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D015034:Zinc Oxide