Page 138 - Organic Electronics in Sensors and Biotechnology

Strain and Pressure Sensors Based on OFET 115

0
–100 Heel –10
–200 –20
–300
I d heel (nA) –400 Sole –30 I d sole (nA)
–500
–40
–600
–700 –50
–800
–60
–900 1 2 3 4 5 6
0 20 40 60 80 100 120
Time (s)
FIGURE 3.28 Heel sensor response (solid line) and sole sensor response
(dotted line).

In this way, it could be possible to build a whole fabric made with
sensitive elements that will be distributed over a large area. Not only
is the distributed function in the fabric a real novel element, but also
the possibility of leveraging from an existing industrial technology
such as textiles for creating a new technological approach, though
challenging, could really have a huge impact. Nevertheless, high
operating voltages of devices and chemical safety of materials are still
open questions and must be carefully considered in designing such
an application.

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