Highly stretchable ionotronic pressure sensors with broad response range enabled by microstructured ionogel electrodes

Abstract

Stretchable pressure sensors with high sensitivity and wide pressure-response range are ideal for perceiving physical interactions in human health monitoring, soft robotic applications, and human-machine interfaces. However, all existing pressure...

Microstructured Polyfluoroacrylate Elastomeric Dielectric Layer for Highly Stretchable Wide-Range Capacitive Pressure Sensors

“…This phenomenon was commonly reported in previous literature. 24,47 As the pressure operation range can reach 800 kPa, we also tested the cyclic pressure test under a highpressure value (100 kPa). Interestingly, even under such harsh operating conditions, our CPS exhibits outstanding durability at 150 compression−release cycles (Figure S17).…”

“…Besides, the capability to withstand large tensile strain is often more valuable than flexibility for a soft electronic device in practical applications. − High stretchability is essential for placing the sensor conformally across arbitrarily curved or moving surfaces (such as joints) and to maintain durability under repeated mechanical stresses . For example, Bao and co-workers developed a stretchable energy-harvesting e-skin with a porous PDMS dielectric layer filled with air gaps .…”

Skin-inspired gradient ionogels induced by electric field for ultrasensitive and ultrafast-responsive multifunctional ionotronics

“…[34][35][36][37] Even though signicant progress has been made by the incorporation of the gradient structure, the complicated fabrication process and the insufficient hierarchical microstructures signicantly limit their performance improvements and wide applications. [38][39][40] Therefore, it remains a big challenge to design ionogels with good gradient microstructures by a simple and effective strategy.…”

Hierarchically Structured MXene Nanosheets on Carbon Sponges with a Synergistic Effect of Electrostatic Adsorption and Capillary Action for Highly Sensitive Pressure Sensors

“…Flexible sensors, − on the other hand, have garnered significant attention due to their small size, high sensitivity, and comfortable wearability. Electronic skin (e-skin) emulates the tactile functionalities of human skin, − allowing for multiple sensing capabilities such as strain, , vibration, pressure, and temperature. As a result, this technology holds vast potential in applications such as smart robotics, prosthetics, human–machine interfaces, − and wearable medical systems. , The ideal electronic skin should possess multifunctional sensing capabilities, which means that it should be able to detect different types of stimuli simultaneously.…”