2 research outputs found
Tunable Touch Sensor and Combined Sensing Platform: Toward Nanoparticle-based Electronic Skin
In
this paper, we present touch (or pressure) flexible sensors based
on monolayer-capped nanoparticles (MCNPs) that are potentially inexpensive,
could allow low-voltage operation, and could provide a platform for
multifunctional applications. We show that modifying the mechanical
and geometrical properties of the flexible substrates, on which the
MCNP films are deposited, allows measuring a large span of loads ranging
between tens of mg to tens of grams. All flexible sensors exhibited
repeatable responses even after a large number of bending cycles.
In addition, we show that modified platforms of those touch (or pressure)
sensors allow precise detection and monitoring of environmental temperature
and humidity. Relying on their superior characteristics, we were able
to build an MCNP-based prototype allowing simultaneous detection and
monitoring of multiple environmental parameters of touch (or pressure),
humidity, and temperature. The excellent temperature (resolution higher
than 1 °C and average error of ∼5%) and relative humidity
(resolution higher than 1% RH and average error of ∼9%) sensitivities
and the possibility to integrate those sensing abilities makes the
suggested platform interesting for potentially inexpensive and low-voltage
multifunctional <i>electronic-skin</i> applications