Application of Thin Metal Oxide Films in Acoustic Wave Chemical Sensors
Georgi Nadjakov Institute of Solid State Physics, Bulgaria
- *Corresponding Author:
- Esmeryan KD
MD, Georgi Nadjakov Institute of Solid State Physics
72 Tzarigradsko Chaussee Blvd 1784 Sofia, Bulgaria
Tel: + 9014170809
E-mail: [email protected]
Received Date: March 12, 2015 Accepted Date: March 19, 2015 Published Date: March 30, 2015
Citation: Esmeryan KD (2015) Application of Thin Metal Oxide Films in Acoustic Wave Chemical Sensors. J Biosens Bioelectron 6:163. doi: 10.4172/2155-6210.1000163
Copyright: © 2015 Esmeryan KD. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Acoustic wave chemical sensors have several features such as high resolution and sensitivity, fast responserecovery time, superb overall stability and high dynamic range, which determine their appropriateness for gas analyte detection. The usability of acoustic sensors requires specific knowledge relating to the sensing mechanism, the properties of different acoustic wave modes and the criteria for selection of sensitive layers, involved in a wide range of gas-phase applications. This paper reports the most commonly used metal oxide film coated acoustic wave sensors, as well as their operation principle and practical application. Several advantages and disadvantages of each particular acoustic wave device are identified and the selectivity of the sensors is presented and discussed.