31 Papers
44 Citations
Youngsu Lee is an academic researcher from Ulsan National Institute of Science and Technology. The author has contributed to research in topics: Triboelectric effect & Heterojunction. The author has an hindex of 14, co-authored 27 publications.
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Papers
Tactile-Direction-Sensitive and Stretchable Electronic Skins Based on Human-Skin-Inspired Interlocked Microstructures
Jonghwa Park,Youngoh Lee,Jaehyung Hong,Youngsu Lee,Minjeong Ha,Youngdo Jung,Hyuneui Lim,Sung Youb Kim,Hyunhyub Ko +8 more
TL;DR: The unique geometry of interlocked microdome arrays enables the differentiation of various mechanical stimuli because the arrays exhibit different levels of deformation depending on the direction of applied forces, thus providing different sensory output patterns.
601
Large-Area Cross-Aligned Silver Nanowire Electrodes for Flexible, Transparent, and Force-Sensitive Mechanochromic Touch Screens.
Seungse Cho,Saewon Kang,Ashish Pandya,Ravi Shanker,Ziyauddin Khan,Youngsu Lee,Jonghwa Park,Stephen L. Craig,Hyunhyub Ko +8 more
TL;DR: The suggested technique provides a robust and powerful platform for the controllable assembly of nanowires beyond the scale of conventional fabrication techniques, which can find diverse applications in multifunctional flexible electronic and optoelectronic devices.
323
Octopus-Inspired Smart Adhesive Pads for Transfer Printing of Semiconducting Nanomembranes
TL;DR: By mimicking muscle actuation to control cavity-pressure-induced adhesion of octopus suckers, smart adhesive pads are developed in which the thermoresponsive actuation of a hydrogel layer on elastomeric microcavity pads enables excellent switchable adhesion in response to a thermal stimulus.
190
Bioinspired Gradient Conductivity and Stiffness for Ultrasensitive Electronic Skins.
Youngoh Lee,Jinyoung Myoung,Soowon Cho,Jonghwa Park,Jinyoung Kim,Hochan Lee,Youngsu Lee,Seungjae Lee,Chunggi Baig,Hyunhyub Ko +9 more
TL;DR: In this article, a flexible e-skin sensor with high piezoresistive sensitivity at low power and linearity over a broad pressure range based on the conductivity-gradient multilayer on the stiffness-gradient interlocked microdome geometry is presented.
146
Tailoring surface plasmons of high-density gold nanostar assemblies on metal films for surface-enhanced Raman spectroscopy
TL;DR: The fabrication of ultrasensitive SERS substrates based on high-density gold nanostar assemblies on silver films with tailored surface plasmons are described, where multiple field enhancements from particle-film and interparticle plasmon couplings and lightening rod effects of sharp tips of nanostars contribute to the enormous Raman enhancements.