Journal
MATERIALS LETTERS
Volume 304, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2021.130674
Keywords
Cilia; Microstructure; Triboelectric; Ion Injection; Energy Harvesting
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT of Korea [2021R1C1C1011588]
- DGIST R&D Program of the Ministry of Science and ICT of Korea [21-RT-01]
- National Research Foundation of Korea [21-RT-01, 2021R1C1C1011588] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Triboelectric nanogenerators (TENG) can convert waste mechanical energy into useful electrical energy, and advanced surface designs and materials can enhance their performance. A single-electrode mode TENG with cilia microstructures (C-TENG) successfully converts biomechanical energy into electrical output, and can charge a commercial capacitor using a bridge rectifier circuit.
Triboelectric nanogenerators (TENG) can convert the waste mechanical energy into useful electrical energy and act as a sustainable power source for micro/nanoelectronics. The utilization of advanced surface designs and materials compositions can further enhance the performance of TENGs. A single-electrode mode TENG with cilia microstructures (C-TENG, abbreviated further) was fabricated from polydimethylsiloxane-carbonyl iron (PDMSFe) composite by using a simple and fast magnetic field-guided method and its energy harvesting performance was evaluated. The structures, electrical properties, and surface roughness were compared between the flat and cilia-formed PDMS-Fe composites. The single-electrode mode TENG based on PDMS-Fe 10 wt% gives an opencircuit voltage of 70 V, the peak to peak current output of 250nA, and the power density of 2.75 mu W/cm2 at 30 M omega. Further, the ion injection was applied to the PDMS-Fe 10 wt% composite films using an antistatic gun, and it doubles the voltage output of the device. C-TENG can convert biomechanical energy (i.e. wind blowing and finger tapping) into an electrical output. In addition, the powering of a calculator was showed by charging a commercial capacitor using a bridge rectifier circuit.
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