Yonsei University

Seoul National University

Woo Soon Jang

Hong Koo Baik

Tae Il Lee

Byung Soo Kim

Sun Woong Han

Suk Ho Bhang

Jae Min Myong

Wan Geun La

A medical patch having an electric potential generating structure which is attachable to a wound to thus regenerate injured skin tissues is provided. The medical patch includes a unit patch having a piezoelectric potential generating structure. The unit patch includes a first layer, a second layer and a piezoelectric nanomaterial disposed between the first and second layers.

Medical patch

A self-powered generator is provided. The generator includes a piezoelectric nanorod member layer that includes a first layer; a second layer; and a plurality of piezoelectric nanorods disposed between the first and second layers. The piezoelectric nanorod is a biaxially-grown nanorod. When mechanical energy is applied from an outside, an upper half and a lower half of each of the plurality of piezoelectric nanorods generate piezoelectric potentials having opposite polarities, the upper half and the lower half being on both sides of a longitudinal axis along an axis perpendicular to the longitudinal axis.

Self-powered generator, method of fabricating the same and piezoelectric enery-harvesting device using the generator

According to an illustrative embodiment of the present invention, a self-powered piezoelectric structure is provided which includes a base material that can be bent by an externally applied force, and a catalyst layer formed on the base material, wherein the catalyst layer is formed by using a mixture of a catalytic material, which can be activated when the energy is applied thereto from an outside, and a piezoelectric material.

Self-powered piezoelectric structure and method of manufacturing the same

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Seoul, South Korea

Woo Soon Jang