Abstract
Small fully inkjet-printed gas sensors based on
capacitive parallel-plate (PP) structures have been
realized on flexible plastic foil and characterized. A
gas sensing layer was inkjet-printed between
inkjet-printed bottom and top silver electrodes. Compared
with comb electrode (CE) geometries, PP structures
drastically reduce the developing complexity of gas
sensors on polymeric foil, avoiding the substrate
parasitic signal. Furthermore, the use of porous
inkjet-printed metal makes the patterning of complex
grids on the top electrode unnecessary, since such
porosity permits the analyte to flow into the sensing
layer. This low demanding patterning resolution
facilitates the miniaturization of the inkjet-printed
sensors, introducing significant improvements in their
sensing performances, such as sensitivity or response
time. The printed sensing devices were characterized
against pulses of relative humidity (R.H.) and their
performances were analyzed.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the IEEE Sensors 2012 |
| ISBN (Electronic) | 978-1-4577-1767-3 |
| DOIs | |
| Publication status | Published - 2012 |
| MoE publication type | Not Eligible |
| Event | 11th IEEE SENSORS 2012 Conference - Taipei, Taiwan, Province of China Duration: 28 Oct 2012 → 31 Oct 2012 |
Conference
| Conference | 11th IEEE SENSORS 2012 Conference |
|---|---|
| Abbreviated title | SENSORS 2012 |
| Country/Territory | Taiwan, Province of China |
| City | Taipei |
| Period | 28/10/12 → 31/10/12 |