Electric-Field-Resonance-Based Wireless Triboelectric Nanogenerators and Sensors
Haoze Kuang1,2, Shuyi Huang3, Chi Zhang1,2
1College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China.
ACS Applied Materials & Interfaces
|December 21, 2021
Summary
This study introduces an electric field resonance (EFR)-based wireless triboelectric nanogenerator (TENG) for self-powered systems. The novel device achieves efficient wireless energy transmission and powers devices like digital watches and LED arrays.
Area of Science:
- Materials Science
- Electrical Engineering
- Energy Harvesting
Background:
- Self-powered systems rely on efficient energy harvesting and transmission.
- Integrating these two technologies is crucial for advancing autonomous electronic devices.
Purpose of the Study:
- To propose and demonstrate an innovative electric field resonance (EFR)-based wireless triboelectric nanogenerator (TENG).
- To investigate the system's efficiency in wireless energy transmission and its potential for powering electronic devices and enabling wireless sensing.
Main Methods:
- Development of an EFR-TENG integrated with a capacitive coupler for wireless energy transmission.
- Establishment of theoretical models for the EFR-TENG system and validation through experimental results.
- Demonstration of the flexible EFR-TENG's capability to power a digital watch and light-emitting diodes.
Main Results:
- Achieved an energy-transfer efficiency of 67.8% over a 5 cm distance.
- The flexible EFR-TENG successfully powered a digital watch wirelessly and illuminated over 40 LEDs.
- Demonstrated spontaneous wireless sensing up to 2.3 m with high system tolerance.
Conclusions:
- The EFR-TENG system offers a promising solution for combined wireless energy harvesting and transmission.
- The technology holds significant potential for self-powered systems, wearable electronics, and real-time wireless sensing applications.
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