Journal
ACS NANO
Volume 12, Issue 10, Pages 10262-10271Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.8b05359
Keywords
charge supplement; voltage enhancement; triboelectric nanogenerator; electroadhesion; self-powered
Categories
Funding
- National Key RAMP
- D Project from Minister of Science and Technology, China [2016YFA0202704]
- National Natural Science Foundation of China [51605033, 51735001, 91648115, 51432005]
- Thousands Talents Program for Pioneer Researcher and His Innovation Team, China
- China Postdoctoral Science Foundation [2015M581041]
- Beijing Municipal Science AMP
- Technology Commission [Z171100000317001]
- Thousands Talents Program for Young Professionals, China
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Electroadhesion generates an adhesion force using an externally applied power source, which has versatile applications in robotics and material handling. In this study, a self-powered electroadhesion system using enhanced triboelectric nanogenerators (TENGs) to supply power for electroadhesion is presented. By introducing a triboelectric charge supplement channel, the open circuit voltage of the TENG can be significantly boosted by over 10 times, from similar to 230 V to more than 3300 V for a single TENG unit, providing sufficiently high voltage for an electroadhesive patch to generate enough adhesion for practical use. The charge supplement channel takes effect through a replenishing mechanism for dissipated charges, maintaining an optimal charge distribution throughout TENG electrodes, which enables the highest open circuit voltage under given surface charge density and device configuration. The fabricated self-powered electroadhesion system shows the ability to manipulate objects of various materials via easy and straightforward operations, demonstrating a great potential for applications in material handling and robotics. Moreover, the voltage enhancement mechanism by the charge supplement channel could be extended to TENGs of other modes, which can provide reliable power sources for various applications that require a high voltage.
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