AAO 두께 및 표면 형상에 따른 고체-고체 마찰 대전 기반 에너지 하베스팅 발전 성능에 관한 연구
A study on the output performance of solid-solid triboelectric energy harvesting depending on the surface morphology and thickness of AAO
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초록
최근 각종 전자기기의 소형화와 웨어러블 디바이스의 수요가 증가함에 따라 IT 기기들의 나노화가 진행되는 추세이며, 이에 따른 배터리의 크기 및 용량 등의 한계를 극복하기 위하여 에너지 하베스팅 기술인 마찰 대전에 대한 연구가 많은 관심을 받고 있다. 불소계 코팅을 진행한 양극산화 알루미늄은 대전 서열에서 음극 성향이 높은 대전층과 대전된 전하가 전극으로 손실없이 전달되도록 도와주는 절연층 그리고 전극을 모두 포함하고 있는 구조로서 마찰 대전 나노발전기의 적용에 있어 많은 연구가 진행되어 왔다. 본 연구에서는 마찰대전 나노발전기 적용에 유리한 양극산화 알루미늄을 활용하여 마찰대전 나노발전기에 영향을 미치는 표면 형상 및 절연층의 두께를 조절하여 발전량과의 상관관계에 대하여 분석하였다. 이러한 분석을 통하여 추후 마찰대전 나노발전기 제작에 있어 면적 대비 발전량을 증가시킬 수 있는 방향을 제시할 수 있었다.
Abstract
Due to the increasing demand for wearable devices and miniaturization of various electronic devices, the trend of nanofabrication in IT devices is underway. In order to overcome the limitations of battery size and capacity, there has been a lot of research interest in energy harvesting technology, also known as triboelectric nanogenerator. AAO(Anodic luminum oxide) coated with fluoride is a structure that includes an anode layer with high properties in the triboelectric series, an dielctric layer that helps transfer the triboelectrically generated charges to the electrode without loss, and the electrode. For these reasons, AAO has been a lot of research on its application to frictional energy harvesting nanogenerators. In this work, we analyzed the correlation of AAO between the surface morphology and thickness of the insulating layer by utilizing aluminum oxide, which is advantageous for the application of triboelectic nanogenerators, and adjusting the thickness of the insulating layer.
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