Omnidirectional wind energy harvester for self-powered agro-environmental information sensing

A stretchable and adhesive composite hydrogel containing PEDOT:PSS for wide-range and precise motion sensing and electromagnetic interference shielding and as a triboelectric nanogenerator

“…Triboelectric nanogenerators (TENGs), a harvesting technology that can harness almost all mechanical motions to generate energy, have great application prospects in flexible wearable devices. [35][36][37][38][39][40][41][42][43][44][45][46][47][48] Moreover, as an important conductor, the conductive hydrogel with flexibility and adhesion is an ideal candidate for TENG soft electrodes. [49][50][51][52][53][54] For example, Hang, Kong and Hao et al designed a hydrophobic, icephobic and ultrafast self-healing TENG with outstanding thermal-resistant, non-drying and nonfreezing properties.…”

Sustainable Triboelectric Materials for Smart Active Sensing Systems

“…These researches provide new directions for safe, efficient and eco-friendly self-powered systems in agricultural production, and demonstrate the potential of environmental energy generation to influence agricultural crop management and production, with great potential for future applications in agriculture. By combining cellulose triboelectric materials, Dai et al [81] designed a self-powered omnidirectional wind energy harvester with eight slit-effect self-powered device units to build a sustainable operation of an intelligent agricultural monitoring system (Figure 8c). The airflow through eight independent channels caused the hydroxyethyl cellulose film to vibrate up and down in the cavity, and the signal output was affected by the direction of the cavity entrance and wind.…”

“…Adapted with permission. [ 81 ] Copyright 2021, Elsevier. d) Performance of the wind‐driven SCR‐TENG.…”

Novel low-carbon energy solutions for powering emerging wearables, smart textiles, and medical devices

“…In addition, a 3601 air current power extractor was built using eight self-powered TENGs, as well as an information procurement electrometer panel to precisely detect air patterns, directions and velocities spanning 0.5 to 10 m s À1 was developed. 421 Zhang et al designed a similar fluorinated hydrophobic TENG device for detecting atmospheric temperature and humidity for smart agro farming. 422 Large land farming requires a lot of energy, and therefore increases carbon dioxide emissions and contributes to climate catastrophe.…”