期刊
ACS APPLIED MATERIALS & INTERFACES
卷 14, 期 1, 页码 794-804出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c19075
关键词
triboelectric nanogenerator; wireless; electric field resonance; capacitive power transfer (CPT); sensing
资金
- National Key R&D Program of China [2018YFB2002500]
- National Natural Science Foundation of China [61974037]
- Key Research and Development Project of Zhejiang [2018C01048, LD22E030007]
- Zhejiang University Global Partnership Fund [100000-11320]
- Zhejiang University Micro-Nano Fabrication Center
An innovative wireless TENG system based on EFR was proposed in this study, which achieved efficient wireless energy transmission with good experimental results. The wrist-worn TENG can drive a watch or light up multiple LEDs, demonstrating the potential of this technology.
Energy harvesting and energy transmission are the key technologies for self-powered systems; thus, the combination of these two is urgently needed. An innovative electric field resonance (EFR)-based wireless triboelectric nanogenerator (TENG) is proposed herein. By integrating the TENG with a capacitive coupler, the output of the TENG can be transmitted wirelessly from the transmitter to the receiver in the form of an oscillating signal with an energy-transfer efficiency of 67.8% for a 5 cm distance. Theoretical models of the EFR-TENG system are established, showing excellent agreement with the experimental results. It is demonstrated that the flexible EFR-TENG worn on the wrist can drive a digital watch wirelessly or light up at least 40 light-emitting diodes in series. The EFR-TENG is further utilized for spontaneous wireless sensing with a transmission distance up to 2.3 m with high system tolerance, showing the great potential of this novel strategy for energy harvesting and real-time wireless sensing applications.
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