期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 152, 期 1, 页码 115-120出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2010.09.005
关键词
ZnO; QCM; Sauerbrey equation; Nanowire; Mechanical stiffness
资金
- Istanbul University [2526, UDP 6728]
- State Planning Organization of Turkey (DPT) [DPT2003K120390]
- Scientific and Technological Research Council of Turkey (TUBITAK) [TBAG 109T240]
The humidity-sensing properties of ZnO nanowires synthesized by carbothermal catalyst-free vapor solid (VS) technique were studied. The morphology and the crystal structure were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. The humidity adsorption and desorption kinetics of the synthesized ZnO nanowires were investigated via quartz crystal microbalance (QCM) measurements. The observed positive frequency shift of ZnO nanowires when loaded on the QCM crystal under varying relative humidity conditions can be explained in terms of visco-elastic variations in their mechanical stiffness. (c) 2010 Elsevier B.V. All rights reserved.
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