Journal
TALANTA
Volume 81, Issue 1-2, Pages 248-251Publisher
ELSEVIER
DOI: 10.1016/j.talanta.2009.11.065
Keywords
Calix[4]arene; Humidity sensor; Quartz crystal microbalance
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Funding
- DPT [DPT2003K120390]
- Tubitak (Turkish Scientific Association) [TBAG 109T240]
- Selcuk University Scientific Research Council (BAP)
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This study focuses on the characterization of sulphonated calix[4]arene derivative films coated on a quartz substrate with a thickness of 40 nm by spin coating method for humidity detection. The humidity adsorption kinetics of the sulphonated calix[4]arene films was investigated by quartz crystal microbalance (QCM) technique. The Langmuir model was used to determine the adsorption rates and Gibbs free energy for various relative humidities between 11% and 97%. Our reproducible experimental results show that suphonated calix[4]arene films have a great potential for humidity sensing applications at room temperature operations. (c) 2009 Elsevier B.V. All rights reserved.
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