Publication Type : Journal Article
Publisher : Sensors & Actuators B
Source : Sensors & Actuators B 304 (2020) 127082 (IF: 7.460).
Url : https://www.sciencedirect.com/science/article/abs/pii/S092540051931281X
Keywords : ZnO, Fish Quality, Ammonia, Trimethyl-amine, Dimethyl Sulphide
Campus : Chennai
School : School of Engineering
Center : Amrita Innovation & Research
Department : Electronics and Communication
Verified : Yes
Year : 2020
Abstract : We report a facile and controlled synthesis of ZnO nanostructures using hydrothermal and sol-gel synthesis routes. Morphological features such as nanoaggregates and nanospheres were observed for hydrothermal and sol-gel grown ZnO nanostructures respectively. Preferential crystal orientation was observed to be along (1 0 1) plane for both the nanostructures. Excitation dependent defect centres of the nanostructures were observed. Nanospheres showed a selective detection of dimethyl sulphide (C2H6S) at room temperature. On the other hand, ZnO nanoaggregates showed dual gas sensing properties towards ammonia (NH3) and trimethylamine (C3H9N) at room temperature with a maximum sensing response of 1207 and 758 respectively. Trace level detection of below 5 ppm was observed towards NH3 and C3H9N. Sensing responses of these nanostructures in different relative humidity conditions were also studied and reported. Also, the sensor showed good stability over a period of time confirmed the suitability of the sensor for practical applications.
Cite this Research Publication : Parthasarathy Srinivasan, John Bosco BalaguruRayappan, “Investigations on Room Temperature Dual Sensitization of ZnO Nanostructures Towards Fish Quality Biomarkers”, Sensors & Actuators B 304(2020) 127082 (IF: 7.460). DOI: 10.1016/j.snb.2019.127082
