5 Result(s)
within
Kyuwook Ihm
Science, Humanities and Social Sciences, multidisciplinary
Science, multidisciplinary
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Article
Open AccessAchieving volatile potassium promoted ammonia synthesis via mechanochemistry
Potassium oxide (K2O) is used as a promotor in industrial ammonia synthesis, although metallic potassium (K) is better in theory. The reason K2O is used is because metallic K, which volatilizes around 400 °C, sep...
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Article
Ultralow-dielectric-constant amorphous boron nitride
Decrease in processing speed due to increased resistance and capacitance delay is a major obstacle for the down-scaling of electronics1–3. Minimizing the dimensions of interconnects (metal wires that connect diff...
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Article
Open AccessObservation of Restored Topological Surface States in Magnetically Doped Topological Insulator
The introduction of ferromagnetic order in topological insulators in general breaks the time-reversal symmetry and a gap is opened in topological surface bands. Various studies have focused on gap-opened magne...
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Article
Open AccessInvestigation of Thermally Induced Degradation in CH3NH3PbI3 Perovskite Solar Cells using In-situ Synchrotron Radiation Analysis
In this study, we employ a combination of various in-situ surface analysis techniques to investigate the thermally induced degradation processes in MAPbI3 perovskite solar cells (PeSCs) as a function of temperatu...
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Article
Open AccessCoulomb nanoradiator-mediated, site-specific thrombolytic proton treatment with a traversing pristine Bragg peak
Traversing proton beam-irradiated, mid/high-Z nanoparticles produce site-specific enhancement of X-ray photon-electron emission via the Coulomb nanoradiator (CNR) effect, resulting in a nano- to micro-scale th...
