Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2777
Title: Humidity sensing properties of ZnO nanoparticles synthesized by sol-gel process
Authors: Erol, Ayşe
Okur, Salih
Comba, B.
Mermer, Ömer
Arıkan, M. Ç.
Keywords: Nanoparticles
Humidity sensor
Quartz crystal microbalance
Sensor
Zinc oxide
Publisher: Elsevier Ltd.
Source: Erol, A., Okur, S., Comba, B., Mermer, Ö., and Arıkan, M. Ç. (2010). Humidity sensing properties of ZnO nanoparticles synthesized by sol-gel process. Sensors and Actuators, B: Chemical, 145(1), 174-180. doi:10.1016/j.snb.2009.11.051
Abstract: ZnO nanoparticles have been synthesized by the sol-gel method with approximately 10 nm diameter and the humidity adsorption and desorption kinetics of ZnO nanoparticles were investigated by quartz crystal microbalance (QCM) technique. The morphology and crystal structure of the ZnO nanoparticles have been characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The roughness of the surface has been investigated using atomic force microscope (AFM). The dynamic Langmuir adsorption model was used to determine the kinetic parameters such as adsorption and desorption rates and Gibbs free energy under relative humidity between 45% and 88%. The relative sensitivity of the ZnO nanoparticles-based humidity sensor was determined by electrical resistance measurements. Our reproducible experimental results show that ZnO nanoparticles have a great potential for humidity sensing applications at room temperature operations. © 2009 Elsevier B.V. All rights reserved.
URI: http://doi.org/10.1016/j.snb.2009.11.051
http://hdl.handle.net/11147/2777
ISSN: 0925-4005
0925-4005
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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