A5067249774- Advanced Sensor and Energy Harvesting Materials
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Nanofabrication and Lithography Techniques
- Thin-Film Transistor Technologies
- Organic Light-Emitting Diodes Research
- Nanomaterials and Printing Technologies
- Tactile and Sensory Interactions
- Nanowire Synthesis and Applications
- Surface Modification and Superhydrophobicity
- Fluid Dynamics and Thin Films
- Advanced Materials and Mechanics
- 2D Materials and Applications
- Additive Manufacturing and 3D Printing Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Semiconductor materials and devices
- Neuroscience and Neural Engineering
- Quantum Dots Synthesis And Properties
- Optical Coatings and Gratings
- Gas Sensing Nanomaterials and Sensors
- Supercapacitor Materials and Fabrication
- Microfluidic and Bio-sensing Technologies
- Electrowetting and Microfluidic Technologies
- Advancements in Semiconductor Devices and Circuit Design
- ZnO doping and properties
Gachon University
2016-2025
Seonam University
2020
Government of the Republic of Korea
2014-2020
Gyeonggi Research Institute
2014
Kyungdong University
2008-2011
Seoul National University
2005-2010
Seoul National University of Science and Technology
2006
A piezopotential-powered active matrix strain sensor array based on a piezopotential-gated graphene transistor (GT) is demonstrated using piezoelectric polymer. The the GT exhibits excellent performance, including ultrahigh sensitivity (gauge factor = 389) and good durability (>3000 bending releasing cycles) with minimum detectable at 0.008%.
Hydrogel is one of the most prominent biomaterials in therapeutic and biomedical engineering, benefiting from its biocompatibility, chemical/physical tunability, wide versatility to various fabrication techniques. One remarkable advance latest hydrogel research micro/nanofabrication technologies, which utilize unique mechanical chemical properties hydrogel, reaction mechanisms, multidisciplinary approaches realize innovative systems at these size scales. This review reports a comprehensive...
Sensing of hazardous gases has an important role in ensuring safety a variety industries as well environments.
Abstract Energy‐harvesting electronic skin (E‐skin) is highly promising for sustainable and self‐powered interactive systems, wearable human health monitors, intelligent robotics. Flexible/stretchable electrodes robust energy‐harvesting components are critical in constructing soft, wearable, energy‐autonomous E‐skin systems. A stretchable tactile interface demonstrated using liquid metal nanoparticles (LM‐NPs)‐based electrodes. This relies on triboelectric nanogenerator composed of a...
Abstract The production of multiscale architectures is significant interest in materials science, and the integration those structures could provide a breakthrough for various applications. Here we report simple yet versatile strategy that allows LEGO-like integrations microscale membranes by quantitatively controlling oxygen inhibition effects ultraviolet-curable materials, leading to multilevel architectures. spatial control concentration induces different curing contrasts resin allowing...
Abstract Gallium‐based alloys, which are virtually non‐toxic liquid metals at room temperature, considered highly promising electrode materials for state‐of‐the‐art electronics with new form factors. Herein, a facile and rapid method to fabricate metal electrodes precise patterns via one‐step coating is presented. For this work, polymeric stencil masks dual structures, comprising upper lower structures injecting molding the metal, respectively, used direct patterning of spray deposition few...
Recent advancements in biomimetics have spurred significant innovations prosthetic limb development by leveraging the intricate designs and mechanisms found nature. Biomimetics, also known as “nature-inspired engineering”, involves studying emulating biological systems to address complex human challenges. This comprehensive review provides insights into latest trends biomimetic prosthetics, focusing on knowledge from natural biomechanics, sensory feedback mechanisms, control closely mimic...
The distinctive properties of hexagonal and cubic CdS illuminate their electronic, optical, structural features, with practical implications explored through applications in various fields.
We report on optically pumped blue, green, and red liquid organic distributed feedback (DFB) lasers based solvent-free fluidic semiconductors, prepared highly flexible corrugated polymeric patterns. By the appropriate selection of laser dyes doping a 9-(2-ethylhexyl)carbazole host, lasing wavelength is effectively tuned across visible spectrum via cascade energy transfer scheme. also demonstrate mechanical tunability DFB emission, which due to deformation high-aspect ratio grating under...
Abstract In recent years, low‐melting‐point metals including liquid metals, exhibiting outstanding physical and chemical properties such as excellent thermal electrical conductivity, high surface tension, biocompatibility, have garnered increasing attention from researchers. The melting point of profoundly influences their determines range applications, comprehending the characteristics is crucial for future applications. Although studies related to are growing exponentially in particular,...
Here, a novel fabrication technique for integrated organic devices on substrates with complex structure is presented. For this work, free‐standing polymeric masks stencil‐patterns are fabricated using an ultra‐violet (UV) curable polyurethaneacrylate (PUA) mixture, and used as shadow thermal evaporation. High flexibility adhesive properties of the PUA ensure conformal contact various materials such glass, silicon (Si), polymer, thus can also be utilized patterning solution‐based deposition...
A simple method for the formation of multiscale metal patterns is presented using hierarchical polymeric stamps with perfluoropolyether (PFPE). dual-scale PFPE structure made via two-step moulding process under partial photocrosslinking conditions. The stamp enables transfer printing (MTP) pattern in one step within microwells as well on curved surfaces. As a service to our authors and readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed...
Arrays of gold nanocones have been fabricated by the nanotransfer printing (nTP) method and we utilized these for field emission. By nature printing, any shape metal structure can be only at desired locations a step-and-repeat process, which enables large-area fabrication, is possible. We demonstrate with nanocone patterns occupying an area 9 mm × 8 mm.
A nanolithographic optical patterning technique is presented. metal pattern on a mold transferred onto photoresist substrate, then the resist with printed mask flood illuminated. The light passes through only lenses that are formed in transfer process. Focusing by these results significant reduction feature size.
We demonstrate that the separated polymer strips of micro- and sub-micro-length-scales rupture anisotropically along strip direction, resulting in formation distinctly observable, regularly spaced drops. The wavelength drops surface tension dependence behavior are found to be well represented by a relationship derived on basis Rayleigh instability. period is proportional square root cross-sectional area proportionality constant depends contact angle. into blocks instead drops, which result...
We developed an approach for fabricating small molecule organic light emitting diodes by solution-based processing. The involves dissolving a in solvent, spin coating it on mold, and then transferring the layer onto existing substrate. This ability to form multilayers of organics allows one take advantage both efficiency offered multilayer structures low cost fabrication made possible solution