Multimodal
electronic skin devices capable of detecting multimodal
signals provide the possibility for health monitoring. Sensing and
memory for temperature and deformation by human skin are of great
significance for the perception and monitoring of physiological changes
of the human body. Electronic skin is highly expected to have similar
functions as human skin. Here, by implementing intrinsically stretchable
neuromorphic transistors with mechanoreceptors and thermoreceptors
in an array, we have realized stretchable temperature-responsive multimodal
neuromorphic electronic skin (STRM-NES) with both sensory and memory
functions, in which synaptic plasticity can be modulated by multiple
modalities, in situ temperature variations, and stretching
deformations. Temperature-responsive functions, spontaneous recovery,
and temperature-dependent multitrial learning are proposed. Furthermore,
a stretchable temperature neuromorphic array composed of multiple
fully functional subcells is demonstrated to identify temperature
distributions and variations at different regions and conditions after
various strains of skin. The STRM-NES has temperature- and strain-responsive
neuromorphic functions, excellent self-healing, and reusable capability,
showing similar abilities as human skin to sense, transmit, memory,
and recovery from external stimuli. It is expected to facilitate the
development of wearable electronics, intelligent robotics, and prosthetic
applications.
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