A5100413735- Advancements in Battery Materials
- Electronic Packaging and Soldering Technologies
- 3D IC and TSV technologies
- Advanced Battery Materials and Technologies
- Supercapacitor Materials and Fabrication
- Perovskite Materials and Applications
- ZnO doping and properties
- Advanced Welding Techniques Analysis
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Autism Spectrum Disorder Research
- Advanced Battery Technologies Research
- Conducting polymers and applications
- Dental materials and restorations
- Photovoltaic System Optimization Techniques
- Thin-Film Transistor Technologies
- Advanced ceramic materials synthesis
- Dental Implant Techniques and Outcomes
- Solar Thermal and Photovoltaic Systems
- Copper Interconnects and Reliability
- Nutrition, Health and Food Behavior
- Engineering Applied Research
- Additive Manufacturing and 3D Printing Technologies
- Advanced Antenna and Metasurface Technologies
- Genetics and Neurodevelopmental Disorders
Hanyang University
2025
Soongsil University
2023
Korea Institute of Science and Technology
2018-2023
Korea University
2023
Hanbat National University
2023
Korea Institute of Civil Engineering and Building Technology
2023
Seoul National University
2013-2022
Agency for Defense Development
2022
Chung-Ang University
2022
Sogang University
2022
Impaired social functioning is a hallmark feature of autism spectrum disorder ( ASD ), often requiring treatment throughout the life span. PEERS ® P rogram for E ducation and nrichment R elational S kills) parent‐assisted skills training teens with . Although has an established evidence base in improving adolescents young adults N orth A merica, efficacy this yet to be cross‐cultural validation trials. The objective study examine feasibility K orean version enhancing through randomized...
Abstract Stretchable electronics is playing an integral role in fields such as wearable and soft robots. Among conductive materials, liquid metal drawing intense attention electrode material due to its nature at room temperature. However, the merits of conductor are limited by presence substrates or enclosed microchannels from physical disturbances underlying substrate when applying it 3D surface modifying complex circuit. To overcome this limitation, we develop freestanding patterned...
For the practical application of next-generation Li metal batteries (LMBs), a anode with high safety and efficiency is essential. However, LMBs still suffer from problems caused by growth dendrites at anode. In this study, we introduce novel way that could dramatically suppress improve performance LMBs. A free-standing porous hollow carbon nanofiber embedded lithiophilic ZnO nanoparticles ([email protected]) fabricated using dual-nozzle electrospinning technique followed carbonization. The...
Background Bisphenol A ( BPA ) has been shown to affect brain and behavior in rodents nonhuman primates, but there are few studies focusing on its relationship human neurobehavior. We aimed investigate the between environmental exposure childhood Methods Urinary concentrations behavioral learning characteristics were assessed a general population of 1,089 children, aged 8–11 years. The main outcome measures Child Behavior Checklist CBCL Learning Disability Evaluation Scale LDES ). Results...
We synthesized three semicrystalline polymers (PTTBTBO, PDTBTBO, and P2FDTBTBO) by modulating the intra- intermolecular noncovalent Coulombic interactions investigated their photovoltaic characteristics under various light intensities. Low series (Rs) high shunt (Rsh) resistances are essential prerequisites for good device properties standard illumination (100 mW cm–2). Considering these factors, among polymers, PDTBTBO polymer solar cells (PSCs) exhibited most desirable characteristics,...
Interfacial degradation in perovskite solar cells is a critical issue affecting long-term stability for future commercialization. In particular, and an organic hole-transport layer (HTL) react easily when the device exposed to extreme operating conditions (heat, light, air). To prevent degradation, inorganic CuSCN HTL has emerged as alternative, yet interfacial reactivity still not clearly elucidated. Herein, Cu2O are coutilized form efficient stable HTL. While uniform film formation using...
Abstract Monolithic (single layer) glass‐ceramic restorations often fail from chipping and fracture. Using blunt indentation of a model flat porcelain‐like brittle layer bonded onto dentin‐like polymer support system, variety fatigue fracture modes has been identified analyzed: outer cone, inner median cracks developing in the near‐contact region at occlusal surface; radial internal cementation surface along loading axis. Our findings indicate that monolithic layers are vulnerable to both...
Background: The present study assessed the association between blood lead and urinary cotinine levels inattentive hyperactive symptoms neurocognitive performance in children. Methods: A total of 667 children (age range 8–11) were recruited from nine schools five Korean cities. teachers parents completed version Attention‐deficit/hyperactivity disorder Rating Scales (K‐ARS), performed tests. Blood then measured. Results: inattentive, hyperactive, scores teacher‐rated K‐ARS positively...
High power conversion efficiency and device stabilization are two major challenges for CH3NH3PbI3 (MAPbI3) perovskite solar cells to be commercialized. Herein, we demonstrate a diffusion-engineered synthesis method using MAI/ethanol dipping, compared it the conventional from MAI/iso-propanol. Diffusion of MAI/C2H5OH into PbCl2 film was observed more favorable than that MAI/C3H7OH. Facile ethanol highly-crystalline MAPbI3 with minimized impurities boosted 5.86% 9.51%. Additionally, further...
Silicon (Si) anodes in lithium-ion batteries (LIBs) suffer from huge volume changes that lead to a rapid capacity decrease and short cycle life. A conductive binder can be key factor overcome this issue, maintaining continuous electron paths under pulverization of Si. Herein, composites poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) poly(vinyl alcohol) (PVA) are augmented with poly(ethylene glycol) (PEG) oxide) (PEO) as for Si anodes, which forms hierarchical structures...
Abstract Despite the many promising properties of perovskite solar cells (PSCs), ultraviolet (UV)‐induced degradation remains a critical issue for their long‐term reliability. One potential solution is selective inhibition UV exposure before it reaches PSCs; however, this approach leads to reduction in PSC efficiency due limited photon utilization. In regard, here universally applicable method presented address stability PSCs without compromising high‐level while also providing device...
Abstract Silicon has been considered as a promising anode material due to its high theoretical capacity (3579 mAh g −1 ), however, it suffers from degradation owing the series of multiscale fractures in electrode caused by volume variation (≈300%) during phase transitions. The molecular/structural design polymeric binders pivotal overcoming challenges improve integrity Si via strong interactions between active materials and binders. In this respect, covalently crosslinked polyacrylamide...
Bioresorbable implantable medical devices can be employed in versatile clinical scenarios that burden patients with complications and surgical removal of conventional devices. However, a shortage suitable electricalinterconnection materials limits the development bioresorbable electronic systems. Therefore, this study highlights highly conductive, naturally resorbable paste exhibiting enhanced electrical conductivity mechanical stability solve existing problems interconnections. Multifaceted...
Abstract This study examines the behavior of cracks approaching interfaces in all‐ceramic dental crown‐like bilayers. Flat specimens are fabricated by fusing porcelain veneers onto yttria‐tetragonal‐zirconia‐polycrystal (Y‐TZP) and alumina core ceramic plates, with veneer/core matching to minimize residual thermal expansion mismatch stresses. Vickers indentations placed on either side interfaces, at systematically decreasing distances, so that lead corner approach intersect a normal...
Simulation results of a metamaterial structure which uses cubic high dielectric resonators, periodically embedded in low background lattice, are presented. Cubic resonators have degenerate modes, imply that the TE and TM modes same resonant frequency. The proposed shows negative refractive index characteristics around resonance frequency since no plasmonic components involved, losses expected to be low.