| Summary: | 碩士 === 國立中正大學 === 機械工程系研究所 === 107 === In the past years, the growth and requirements of the field of wearable devices have been on the rise, requiring continued innovation technologies in the field of electronics, energy device, and sensors. Wearable devices have multiple applications like sport, security, health monitoring, wireless sensing, etc. and this device requires a flexible and stable power source. Most researchers generally use polymers as their main friction layers and metal or ITO as the electrode. Few researchers like have investigated the use of conductive textile as a friction layer and as an electrode. Most previous textile triboelectric generators research focuses on coating their textile with polymers or chemically modifying the chemical properties of the textile. However, this study proposed an innovative surface patterned textile triboelectric generator (TEG) to harvest ambient mechanical energy from the environment. This TEG uses conductive textile as the main material. The design of this TEG is meant to generate stable power for powering electronic devices, used as a power source for night sports light. The TEG is designed with surface modification to improve its performance.
In this study the textile is used as a friction layer and as an electrode; thereby making it a cost-effective, high-flexibility, high-stability and high-conductivity. In order to improve the performance of the TEG, the surface morphology on the conductive textile by hand sewing was performed. The surface morphology on the textile significantly improves the frictional characteristic of the friction layers; the textile is designed with point (circular pattern), 1cm and 2cm spaced line patterns.
Finally, the results emphasize the importance of surface morphology on the conductive textile. It demonstrates that with surface modified textile, there are high electrons injected into the PDMS film. In the case of the 1cm spaced line pattern, it produces a more effective contact area with the PDMS film, thereby, producing higher output voltage and current. The device is able to generate an output power reaches 913.936µW. This shows that the integrity of surface morphology is crucial to the performance and stability of the TEG.
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