4 JEJU NATIONAL UNIVERSITY RESEARCH FIELD ENERGY HARVESTING ENERGY STORAGE ENERGY CONVERSION • Piezoelectric Nanogenerators • Triboelectric Nanogenerators • Electromagnetic hybrid Nanogenerators • Peizo-Phototronic System • Planer Type Supercapacitors • Cyndrical Supercapacitors • Micro-Supercapacitors • Batteries • Self-Charging Power Systems/Cells • Fuel Cells • Water Electrolyzer
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