Journal
NATURE COMMUNICATIONS
Volume 10, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-019-09464-8
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Funding
- National Natural Science Foundation of China (NSFC) [51572040, 51772036]
- Chongqing University Postgraduates' Innovation Project [CYB18061]
- Natural Science Foundation Project of Chongqing [cstc2017jcyjAX0307]
- Fundamental Research Funds for the Central Universities [2018CDQYWL0046, 106112017CDJXY300002, 2018CDJDWL0011, 2018CDPTCG0001/22]
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Performance of triboelectric nanogenerators is limited by low and unstable charge density on tribo-layers. An external-charge pumping method was recently developed and presents a promising and efficient strategy towards high-output triboelectric nanogenerators. However, integratibility and charge accumulation efficiency of the system is rather low. Inspired by the historical development of electromagnetic generators, here, we propose and realize a self-charge excitation triboelectric nanogenerator system towards high and stable output in analogy to the principle of traditional magnetic excitation generators. By rational design of the voltage-multiplying circuits, the completed external and self-charge excitation modes with stable and tailorable output over 1.25 mC m(-2) in contact-separation mode have been realized in ambient condition. The realization of the charge excitation system in this work may provide a promising strategy for achieving high-output triboelectric nanogenerators towards practical applications.
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