Stretchable on-skin touchless screen sensor enabled by ionic hydrogel

Contactless Boiling State Monitoring in Mini-Channels Based on Triboelectric Nanogenerators

“…Wang’s group invented triboelectric nanogenerators (TENG) based on triboelectric effect and electrostatic induction in 2012, which have a wide range of potential applications in the field of energy harvester and self-powered sensors. At present, self-powered sensors developed based on TENG have been studied for many fields and disciplines and can be applied to detect physical parameters such as displacement, , speed, , pressure, , metal ions, humidity, , temperature, , and health monitoring , and human–computer interaction. , Among them, liquid–solid contact TENG have received widespread attention as an approach of monitoring the contact status of the solid–liquid interface and have been applied in motion monitoring, , chemical monitoring, − anticorrosion, , liquid meter, , and ocean water level monitoring. , For example, Li et al made a three-electrode B-TENG that could be integrated into a water level monitoring system to detect the height of the water level . Zhang et al constructed an RDE-TENG that obtained the energy of raindrops, which could monitor the temperature and humidity in the greenhouse .…”

Recent Progress of Nature Materials Based Triboelectric Nanogenerators for Electronic Skins and Human–Machine Interaction

“…biocompatibility, can emulate the mechanical and biological attributes of human skin, meeting the requirements for mimicking human skin sensations, such as touch and temperature. [52][53][54][55][56][57][58] Notably, these TENGs efficiently convert mechanical energy from body movements into electrical energy, supporting self-powered devices. Self-powering capability of TENGs eliminates the need for external power sources, simplifying system design and enhancing user experience.…”

Self-Powered Agricultural Product Preservation and Wireless Monitoring Based on Dual-Functional Triboelectric Nanogenerator

“…Based on the coupling effect of contact electrification and electrostatic induction, the triboelectric nanogenerator (TENG) first proposed by Wang’s group in 2012 has been developed as a promising technology for converting ubiquitous but wasted mechanical energy into electrical energy. − Benefiting from lots of merits such as low cost, simple structure, high efficiency, and diverse material choices, TENGs have penetrated many aspects of our daily life, including micro/nano power sources, − self-powered sensors, − blue energy, − and liquid–solid interface probe. , In addition, given its inherent output characteristics of high voltage and low current, TENG can also be utilized in many high-voltage applications as a direct power source, such as dielectric wetting, electrospinning, plant electrical stimulation, and negative ion release . In comparison to traditional high-voltage power sources, TENG-based high-voltage power sources have unique merits of portability, cost-effectiveness, and safety.…”