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Investigations on Room Temperature Dual Sensitization of ZnO Nanostructures Towards Fish Quality Biomarkers

Publication Type : Journal Article

Publisher : Sensors & Actuators B

Source : Sensors & Actuators B 304 (2020) 127082 (IF: 7.460).

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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

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