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Development of the Triboelectric Nanogenerator Using a Metal-to-Metal Imprinting Process for Improved Electrical
Moonwoo La1, Jun Hyuk Choi2, Jeong-Young Choi3
1Molds & Dies Technology R&D Group, Korea Institute of Industrial Technology (KITECH), Incheon 21999, Korea. mla@kitech.re.kr.
Micromachines
|February 5, 2019
Summary
Structured aluminum surfaces enhance triboelectric nanogenerators (TENGs) for energy harvesting. This metal-to-metal imprinting method boosts electrical output, broadening TENG applications.
Area of Science:
- Materials Science
- Energy Harvesting
- Nanotechnology
Background:
- Triboelectric nanogenerators (TENGs) are promising energy harvesters utilizing contact electrification.
- Surface topography significantly impacts TENG electrical performance.
Purpose of the Study:
- To introduce a structured Al (SA)-assisted TENG (SA-TENG).
- To investigate the effect of metal-to-metal (M2M) imprinting for surface structuring on TENG performance.
Main Methods:
- Fabrication of SA-TENG using M2M imprinting to create structured metal surfaces.
- Testing SA-TENG performance via finger tapping motion.
Main Results:
- The SA-TENG achieved over 200 V open-circuit voltage and 60 µA short-circuit current.
- Demonstrated enhanced electrical output compared to unstructured TENGs.
Conclusions:
- M2M imprinting offers a rapid, versatile method for structuring TENG contact layers.
- This approach substantially enhances TENG electrical output and broadens fabrication possibilities.
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