Abstract
An inkjet-printed relative humidity sensor based on
capacitive changes which responds to different humidity
levels in the environment is presented in this work. The
inkjet-printed silver interdigitated electrodes
configuration on the paper substrate allowed for the
fabrication of a functional proof-of-concept of the
relative humidity sensor, by using the paper itself as a
sensing material. The sensor sensitivity in terms of
relative humidity changes was calculated to be around 2
pF/RH %. The response time against different temperature
steps from 3 to 85°C was fairly constant (about 4-5 min),
and it was considered fast for the aimed application, a
smart label.
| Original language | English |
|---|---|
| Article number | 1464 |
| Journal | Sensors |
| Volume | 17 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 22 Jun 2017 |
| MoE publication type | A1 Journal article-refereed |
Funding
The present work was supported by EU-ROPAS project, from European Community Framework Programme 7, Grant Agreement No.: 263078 and EU-FlexSMELL project, part of a Marie Curie Initial Training Network (ITN), from European Community Framework Programme 7, Grant Agreement No.: 238454.
Keywords
- humidity sensor
- inkjet printing
- nanoparticles
- paper
- silver
- OtaNano