A5015735101- Economic theories and models
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- Economic Theory and Policy
- Chalcogenide Semiconductor Thin Films
- Monetary Policy and Economic Impact
- Advanced Semiconductor Detectors and Materials
- Ferroelectric and Piezoelectric Materials
- Banking stability, regulation, efficiency
- Advancements in Battery Materials
- ZnO doping and properties
- Conducting polymers and applications
- Microwave Dielectric Ceramics Synthesis
- Digital Platforms and Economics
- Electronic and Structural Properties of Oxides
- Gas Sensing Nanomaterials and Sensors
- Supercapacitor Materials and Fabrication
- Solid-state spectroscopy and crystallography
- Food Chemistry and Fat Analysis
- Advanced ceramic materials synthesis
- Transition Metal Oxide Nanomaterials
- Economic Theory and Institutions
- TiO2 Photocatalysis and Solar Cells
- Radiation Detection and Scintillator Technologies
- Gender, Labor, and Family Dynamics
Konkuk University
2012-2024
Konkuk University Medical Center
2000-2023
Yonsei University
1991-2023
Sungkyunkwan University
2010-2023
Korea University
2010-2020
Samsung Medical Center
2010-2012
Seoul National University
2012
Kyung Hee University
2007-2009
Agency for Defense Development
1994-2006
Bank of Korea
2006
Amorphous Zn2SnO4 (am-ZTO) films with extreme surface uniformity, high electron mobility, and fewer charge traps were successfully developed by controlling the concentrations of 2-methoxyethanol solutions containing 2:1 stoichiometric ratio Zn to Sn. For first time, we demonstrate that solution-processed am-ZTO thin are highly efficient as an electron-selective layer (ESL) for mixed perovskite solar cells (PSCs). When ESLs combined bandgap-tuned FAMAPbI3 perovskites, a champion efficiency...
The effect of low‐dose gamma‐ray irradiation on an amorphous SnO 2 electron‐selective layer (ESL) was investigated in this study. Further, its impact the photovoltaic (PV) performance planar perovskite solar cells (PSCs) based MAPbI 3 and CsFAMAPbIBr absorber layers has been evaluated for first time. properties were substantially modified by regulatory exemption radioactive sources (Co‐60). Gamma‐ray promoted formation large grains creating a hydrophilic surface via generation ─OH film...
CdZnTeSe (CZTS) has attracted attention for applications in X- and gamma-ray detectors owing to its improved properties compared those of CdZnTe (CZT). In this study, we grew processed single crystals CZT CZTS using the Bridgeman method confirm feasibility a dosimeter high-energy X-rays radiotherapy. We evaluated their linearity precision coefficient determination (R2) relative standard deviation (RSD). showed sufficient RSD values lower than 1.5% X-ray dosimetry, whereas CZT's increased...
Abstract Halide perovskite single crystals (SCs) have attracted much attention for their application in high‐performance x‐ray detectors owing to desirable properties, including low defect density, high mobility–lifetime product ( μτ ), and long carrier diffusion length. However, suppressing the inherent defects perovskites overcoming ion migration primarily caused by these remains a challenge. This study proposes facile process dipping Cs 0.05 FA 0.9 MA PbI 3 SCs synthesized solution‐based...
Previous work on the denomination structure of currency treats as exogenous distribution transactions and denominations held by people. Here, way a matching model, both are endogenous. In trades in pairwise meetings alternate time with opportunity to freely choose portfolio there is trade-off between benefits small-denomination money for transacting costliness carrying large quantity money. For given structure, monetary steady state shown exist. The model implies that too small abandoned.
Tooth enamel is the most highly mineralized tissue in vertebrates. Enamel crystal formation and elongation should be well controlled to achieve an exceptional hardness a compact microstructure. matrix calcification occurs with several proteins, such as amelogenin, enamelin, ameloblastin. Among them, amelogenin abundant protein, multiple isoforms resulting from extensive but well-conserved alternative splicing postsecretional processing have been identified. In this report, we recruited...
Perovskite single crystals are actively studied as X-ray detection materials with enhanced sensitivity. Moreover, the feasibility of using perovskites for self-powered devices such photodetectors, UV detectors, and detectors can significantly expand their application range. In this work, charge carrier transport photocurrent properties MAPbBr3 (MSCs) improved by mechanochemical surface treatment glycerin combined an additional electrode design that forms ohmic contact. The sensitivity...
Apoptosis plays important roles in various stages of organogenesis. In this study, we hypothesized that apoptosis would play an role tooth morphogenesis. We examined the early development by using a caspase inhibitor, z-VAD-fmk, concomitant with vitro organ culture and germ transplantation into kidney capsule. Inhibition at cap stage did not disrupt cell proliferation level when compared controls. However, macroscopic morphology mice molar teeth exhibited dramatic alterations after...