Electronic Skin is arousing a lot of interest in recent years due to its ability to mimic human skin and also its excellent conformability. Even though there are reports on...
The challenges involved in realizing
next-generation applications,
like robotics, artificial electronic skin, noninvasive healthcare
monitoring, motion detection, and so forth, enabled with wireless
human-machine interfaces, present a growing need for high-performance
flexible and wearable multifunctional electromechanical sensors. In
this regard, emerging classes of two-dimensional nanomaterials and
their hybrids show excellent promise as active sensing materials,
given their high flexibility and remarkable sensitivity to external
pressure and strain. This report is the first demonstration of SnS/Ti3C2T
x
nanohybrid-based
electromechanical sensors for use in applications like sign-to-text
translation and sitting posture analysis. The as-fabricated piezoresistive
sensor exhibits a high gauge factor and sensitivity value, that is,
7.41 and 7.49 kPa–1, respectively. Furthermore,
the nanohybrid-based sensor displayed a negligible change in performance
over ∼3500 and ∼2500 cycles for both pressure and strain
characterizations, indicating high robustness and exceptional stability.
The underlying intrinsic piezoresistive mechanism in layered nanomaterials
and the Ohmic contact formed at the SnS/Ti3C2T
x
heterojunction are explained in detail
with the help of energy band diagrams wherein the work function and
the E
homo values are extracted experimentally
by ultraviolet photoelectron spectroscopy for both SnS and Ti3C2T
x
. The successful
demonstration of sign-to-text translation and e-cushion applications
using SnS/Ti3C2T
x
nanohybrid-based piezoresistive sensors will further expand the
scope of flexible and wearable electronics research.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.