Toward Large-Scale Energy Harvesting by a UV-Curable Organic-Coating-Based Triboelectric Nanogenerator

Abstract

Triboelectric nanogenerators (TENGs) stand out as an attractive form of technology for the efficient harvest of mechanical energy and the powering of wearable devices due to their light weight, simplicity, high power density, and efficient vibration energy scavenging capabilities. However, the requirement for micro/nanostructures and/or complex and expensive instruments hinders their cheap mass production, thus limiting their practical applications. By using a simple, cost-effective, fast spray-coating process, we develop high-performance UV-curable triboelectric coatings for large-scale energy harvesting. The effect of different formulations and coating compositions on the triboelectric output is investigated to design triboelectric coatings with high output performance. The TENG based on a hybrid coating exhibits high output performance of 54.5 μA current, 1228.9 V voltage, 163.6 nC transferred charge and 3.51 mW output power. Moreover, the hybrid coatings show good long-term output stability. All the results indicate that the designed triboelectric coatings show great potential for large-scale energy harvesting with the advantages of cost-effectiveness, fast fabrication, easy mass production and long-term stability.

2D Material‐Based Wearable Energy Harvesting Textiles: A Review

“…Furthermore, 2D materials have demonstrated possibilities in the development of wearable nanogenerators and SCs for wearable e-textile applications. [338][339][340] As evidenced by current literature and research progress, spray coating, either entirely or partially, has developed as a key fabrication process used in energy harvesting devices [332,341,342] such as TENG, [332,341,343,344] ThNG, [345,346] and so on, which determined spray coating as a key technique in the fabrication of 2D material-based wearable energy harvesting textiles.…”

Mechanical Vibration Energy Harvesting and Vibration Monitoring Based on Triboelectric Nanogenerators

“…[17] TENG is a power generation method based on the combination of contact electrification and electrostatic induction, which can harvest mechanical energy from many available resources in the surrounding environment, such as vibration, [18][19][20][21] human movement, [22][23][24] ocean wave, [25][26][27][28] and wind. [29][30][31] Compared with other generators, the TENGs have the advantages of high output voltage, [32,33] high efficiency, [34][35][36][37] and low-cost. [38,39] At present, TENG can be used as an excellent power supply device.…”