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물방울 접촉면적이 마찰전기 발전소자 성능에 미치는 영향
임부시(Busi Im),강기호(Giho Kang),조대현(Dae-hyun Cho),변도영(Doyoung Byun) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Triboelectric nanogenerator (TENG) has emerged as a renewable and sustainable energy generator. TENG is available to generate energy from nature and generally has no limitation of energy sources such as wind and rain. Water droplets from rainwater are suitable because each droplet has its own mechanical energy that drives the contact-separation process. Since the working mechanism of TENG is based on triboelectrification and electrostatic induction, the contact separation process is essential, therefore the surface of TENG must be hydrophobic so that it can be separated easily. In this study, poly(dimethylsiloxane) (PDMS) was selected as an electrification layer with hydrophobic and highly tribo-negative, good maintenance properties. The relationship was calculated by measuring the contact area and output performance. From the results, we observed the output performance of TENG was increased with the contact area.