자가발전활용을 위한 마찰전기 발전소자의 개발

Abstract

In recent years, searching and developing for sustainable, renewable and green energy has been one of the most important tasks for scientist and researchers to address the rapidly increasing global warming and energy crises in the world. nanogenerator(NG) has been developed for converting low frequency mechanical energy into electricity though piezoelectric and tribo-electrification processes and they have been demonstrated to power small electronic devices. Generally, the triboelectric nanogenerator operate based on contact electrification and electrostatic induction. Due to its simple operation, low cost, availability of materials, higher performance, and high adaptability takes into a wide range applications such as wireless systems, portable/wearable electronics, and self-powered systems. Although a variety of materials are used in TENG have been reported, but still have their limitations. To achieve higher output performance, choosing the materials, surface morphology and inner distance are key parameters. Therefore, great efforts have been devoted to design and fabrication of triboelectric nanogenerator with high-performance to the sustainable driving of electronic systems. In this thesis, we have fabricated the triboelectric nanogenerator with different condition and studied the effects on their nanogenerator performance when they were used in tribo-electrification process. Finally, the fabricated triboelectric nanogenerator can directly drive commercial LEDs connected in series, when the force is applied to the device. These results demonstrating that the potential application of triboelectric nanogenerator for self-powered systems, such as wireless sensor networks, implanted medical devices, nanorobotics, security applications and portable/wearable personal electronics.