| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 741849 | Sensors and Actuators B: Chemical | 2015 | 11 Pages |
•Developed Gold & Silver nanoisland-based thin film ozone sensors on glass substrate.•Sensors were modeled, simulated and analyzed for optimizing the sensor design.•APTMS and PVA methods were employed for improved bonding.•Characterization studies agree very well with simulation and analytical results.•APTMS based gold sensor performs well over the APTMS and PVA based silver sensors.
Nanosensors play an important role in miniaturizing conventional sensors with improved functionality, low-cost and easy to use options. In this paper, we present the simulation and fabrication of gold and silver nanoisland thin films for sensing ozone. The proposed model was simulated and analyzed in the Comsol Multiphysics 4.2 and MATLAB environment. The results of this modeling and analysis were used to fabricate silver and gold nanoisland thin films based ozone sensor. For the fabrication of an ozone sensor, two different binding methods were developed, viz., APTMS and PVA as stability agents. The sensors fabricated were characterized to identify the various characteristics such as absorbance, morphology, grain size of the nanoparticles and the binding nature of nanoparticles on the substrates. The sensors developed were tested for ozone detection and their performance was confirmed through UV, SEM and AFM analysis. The results of this study show that the APTMS based gold nanoislands thin film sensor detects ozone very effectively than the APTMS and PVA based silver sensor.
