Conjunction of triboelectric nanogenerator with induction coils as wireless power sources and self-powered wireless sensors.

ABSTRACT: Here we demonstrate a magnetic resonance coupling based wireless triboelectric nanogenerator (TENG) and fully self-powered wireless sensors. By integrating a microswitch and an inductor with the TENG, the pulsed voltage output is converted into a sinusoidal voltage signal with a fixed frequency. This can be transmitted wirelessly from the transmit coil to the resonant-coupled receiver coil with an efficiency of 73% for a 5?cm distance between the two coils (10?cm diameter). Analytic models of the oscillating and coupled voltage signals for the wireless energy transfer are developed, showing excellent agreement with the experimental results. A TENG of 40?×?50?mm² can wirelessly light up 70 LEDs or charge up a 15??F capacitor to 12.5?V in ~90?s. The system is further utilized for two types of fully self-powered wireless chipless sensors with no microelectronic components. The technologies demonstrate an innovative strategy for a wireless 'green' power source and sensing.

SUBMITTER: Zhang C 

PROVIDER: S-EPMC6940365 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature