Volatile Organic Compounds and Dimethyl Methyl Phosphonate (DMMP) Sensing Properties of the Metal Oxide Functionalized QCM Transducers at Room Temperature
Künye
KÖSEMEN, Arif, Sadullah ÖZTÜRK, Zafer ŞEN, Zühal ALPASLAN KÖSEMEN, Mika HARBECK & Zafer Ziya ÖZTÜRK. "Volatile Organic Compounds and Dimethyl Methyl Phosphonate (DMMP) Sensing Properties of the Metal Oxide Functionalized QCM Transducers at Room Temperature". Journal of The Electrochemical Society, 164.13 (2017): B657-B664. .Özet
ZnO nanorods were synthesized directly on the mass sensitive transducer elements, namely the quartz crystal microbalance (QCM),
by electrochemical deposition techniques. Besides, vanadium pentaoxide (V2O5) thin films were evaporated on the ZnO nanorods
using a thermal evaporation system. The fabricated chemical gas sensors were exposed to different levels of various volatile organic
compounds (VOCs). The VOCs sensing measurements were realized at room temperature. The application of an additional V2O5
layer on the ZnO nanorods was found to improve the sensing performance of the nanorods. The highest responses were obtained
for the analyte DMMP and the DMMP sensitivities of the sensors are at least three times higher than the sensitivities for the other
tested VOCs. ZnO nanorods are considered excellent sensing materials on the QCM allowing selective detection of DMMP and
other analytes at room temperature.
