Coupling electrostatic induction and global electron circulation for constant-current triboelectric nanogenerators
- Title
- Coupling electrostatic induction and global electron circulation for constant-current triboelectric nanogenerators
- Author
- 김태환
- Keywords
- Constant current ; Electron circulation ; Electron-flow guidance ; Electron pump ; Triboelectric nanogenerator
- Issue Date
- 2021-02
- Publisher
- ELSEVIER
- Citation
- NANO ENERGY, v. 85, article no. 105929
- Abstract
- Obtaining direct-current (DC) output is important to triboelectric nanogenerator (TENG) technology. The
working mechanism of a TENG is a fixed number of electrons periodically oscillating between electrodes through
a load circuit. For most DC-TENGs, unipolar output is realized by using local-rectification, which is introducing
rectifying devices to the load circuit, and the essence of periodical electron oscillation between electrodes is not
changed. In this work, a constant-current TENG with global electron-circulation is demonstrated. The basic unit
of our TENG only consists of a metal induction layer (MIL) connected with an electronic load through two
rectified PN-junctions. The MIL-load loop is in an electric neutrality state. The force driving the global electroncirculation in the MIL-load loop is the electrostatic force introduced from an external position-variable charged
layer. The periodic motion of the charged layer leads to a unidirectional electron-circulation in the MIL-load
loop. A stable constant current can be obtained by increasing the number of parallel MIL units. This constantcurrent TENG can be used to directly drive LEDs without flicker and to directly drive electronic devices.
Because no contact is made between the charged layer and the MIL units, the operational life of the TENG is
effectively extended
- URI
- https://www.sciencedirect.com/science/article/pii/S2211285521001877?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/175957
- ISSN
- 2211-2855 ; 2211-3282
- DOI
- 10.1016/j.nanoen.2021.105929
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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