With the rapid advancement of artificial intelligence and the Internet of Things (AIoT), electromagnetic waves have become essential carriers for both energy and information exchange. AIoT devices require a stable supply of energy and robust ability to adapt to different environments to ensure continuous operation and reliable connectivity in complex settings. Therefore, developing a smart, sustainable, and seamlessly integrated wireless energy interaction system that facilitates contactless reception, conversion, and transmission of energy and signals is critical.
Recently, Professor Xu Bingang and his team made a fundamental breakthrough in this field by carrying out an innovative study on the wireless, chipless coupled interaction between electromagnetic and air moisture by controlling the ionic diode effect. Using a coupled wireless energy interactive system, a bilayer polymer ionic diode can synergistically harvest electromagnetic and moist energies. Impressively, the electromagnetic-electricity conversion efficiency reaches 25.74% under 100 Hz wave frequency. This groundbreaking work paves the way for future intelligent systems, including self-powered monitoring, wireless charging, and information encryption, with broad application potential.
This work makes a vital step towards enabling smart interactivities for wirelessly driven wearable flexible electronics. The findings are published in Nature Communications (https://doi.org/10.1038/s41467-024-55030-2). The first author is Dr Gao Zhenguo, a postdoctoral fellow at SFT under the supervision of Professor Xu.
