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Piezoelectric Nanogenerator

Triboelectric Nanogenerator

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Energy Harvesting Technology

Energy Conversion From Waste Energy into Electrical Energy for Battery-Free Self Powered Electronics

We are investigating novel energy generation technology such as piezoelectric and triboelectric energy generator for self-powered small electronics system. Recently, the number of small & portable electronics is rapidly increasing for health care monitoring system, wearable device and sensors for IoT system. However, all of these electronics energy source are battery which has certain life span whether it can rechargeable or not. Due to its limited life time, battery is replaced by person one by one. However, it is impossible to check all battery on time. Therefore, the demand and interest of self-powered electronics are increasing.

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Synthesis of Functional Polymers

We are synthesizing various functional polymers/nanocomposites for energy applications, including triboelectric nanogenerators, piezoelectric nanogenerators, and self-powered electronics, with high stretchability, wearability, attachability, transparency, biocompatibility, and biodegradability.

Synthesis of Bio-Piezoelectric Materials

Biomolecular piezoelectric materials are considered strong candidate material for biomedical applications because of their robust piezoelectricity, biocompatibility, and low dielectric property. We are synthesizing various types of piezoelectric biomolecules, including amino acids, peptides, and proteins, through self-assembly for biomedical applications such as bioimplantable electronics and the treatment of intractable diseases.

Various Novel Applications

We are also exploring new, creative, and practical uses for our developed materials and devices. For instance, we recently developed a wearable tactile sensor, a system for removing micro/nano plastics/particles, anti-static shoes, and dust removal technology with an electrodynamic screen effect.

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