Seunghwa Ryu

TL;DR: The applicability of the high performance strain sensors based on the nanocomposite of silver nanowire network and PDMS elastomer in the form of the sandwich structure is demonstrated by fabricating a glove integrated with five strain sensors for the motion detection of fingers and control of an avatar in the virtual environment.

TL;DR: Graphene films can be crumpled into tailored self-organized hierarchical structures that mimic superhydrophobic leaves by harnessing the mechanical instabilities of graphene adhered on a biaxially pre-stretched polymer substrate and by controlling the relaxation of the pre-strains in a particular order.

TL;DR: In this paper, the authors proposed a method to improve the performance of the beamforming process in the Materials Research Science and Engineering Centers (Program) (DMR-1121107)

TL;DR: A new type of stretchable strain sensor that can detect both tensile and compressive strains and can be fabricated by a very simple process is proposed and shows highly sensitive and durable sensing performances in various tensile/compressive strains, long-term cyclic loading and relaxation tests.

TL;DR: A flexible and wearable pressure sensor based on the giant piezocapacitive effect of a three-dimensional microporous dielectric elastomer, which is capable of highly sensitive and stable pressure sensing over a large tactile pressure range and marks the realization of a true tactile pressure sensor.