Search Results - "Cho, In Hwa"
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Behavior of the monoclinic order in VO2 thin films grown on sapphire near the metal-insulator transition
Published in Applied surface science (01-09-2022)“…[Display omitted] •Full 3D x-ray reciprocal space mapping reveals the monoclinic order and correlation in VO2 thin films.•The ordered monoclinic domain in VO2…”
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2
Improvement of 40Ar/39Ar age determinations for Quaternary basaltic rocks by eliminating the peak suppression effect
Published in Journal of analytical science and technology (20-02-2020)“…Background The peak suppression effect, which suppresses the argon isotope signal due to the incomplete cleaning of gas from geological samples during…”
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3
Formation of Frustrated Lewis Pairs in Ptx-Loaded Zeolite NaY
Published in Angewandte Chemie International Edition (26-10-2015)“…The formation of a frustrated Lewis pair consisting of sodium hydride (Na+H−) and a framework‐bound hydroxy proton O(H+) is reported upon H2 treatment of…”
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4
Oxidation‐induced three‐dimensional morphological changes in Ni nanoparticles observed by coherent X‐ray diffraction imaging
Published in Journal of synchrotron radiation (01-03-2021)“…Three‐dimensional structures of Ni nanoparticles undergoing significant morphological changes on oxidation were observed non‐destructively using coherent X‐ray…”
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5
GIWAXS Analysis on Preferred Orientation in Metal Halide Perovskite Films Via Alkylamines
Published in Electronic materials letters (01-09-2022)“…We investigated the effects of the alkyl chain length of alkylamine ligands (AALs), known to modify metal halide perovskite crystallites, on the preferential…”
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Kinetic enhancement of LiBH4–MgH2 composite by pre-milled MWCNTs observed by in situ X-ray diffraction measurements
Published in International journal of hydrogen energy (21-12-2016)“…LiBH4–MgH2 composite is one of the most promising solid-state hydrogen storage materials because it exhibits good reversibility as well as lower total reaction…”
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7
Atomic interdiffusion in Pt-Ni thin films at low temperatures: An in-situ X-ray reflectivity study
Published in Thin solid films (01-11-2019)“…We have investigated the kinetic process of the atomic interdiffusion across the interface in thin platinum‑nickel (Pt-Ni) bilayer films at temperatures…”
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8
Observation of the Talbot effect using broadband hard x-ray beam
Published in Optics express (22-11-2010)“…We demonstrated the Talbot effect using a broadband hard x-ray beam (Δλ/λ ~1). The exit wave-field of the x-ray beam passing through a grating with a sub…”
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9
Formation of Frustrated Lewis Pairs in Ptx-Loaded Zeolite NaY
Published in Angewandte Chemie (26-10-2015)“…The formation of a frustrated Lewis pair consisting of sodium hydride (Na+H−) and a framework‐bound hydroxy proton O(H+) is reported upon H2 treatment of…”
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10
Investigation of sol-gel and nanoparticle-based NiOx hole transporting layer for high-performance planar perovskite solar cells
Published in Journal of alloys and compounds (15-08-2019)“…We conduct a comprehensive study on and comparison of sol-gel and nanoparticles (NPs)-based nickel oxide hole-transporting layer (HTL) for high-performance…”
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11
Functional additives for high-performance inverted planar perovskite solar cells with exceeding 20% efficiency: Selective complexation of organic cations in precursors
Published in Nano energy (01-05-2020)“…Imperfection originating from the ionic nature of organic inorganic hybrid perovskite (OIHP) is a major factor that degrades perovskite solar cells (PSCs)…”
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12
Separate observation of surface passivation and linking effects of oleylamine alkylamine ligands on metal-halide perovskite films
Published in Organic electronics (01-03-2023)“…In this study, we separately observed the synergetic effects of crystal linking and substituting A-site vacancies with the linker molecule oleylamine (OAm)…”
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13
Strain relaxation in epitaxial SrTi0.5Fe0.5 O 3 − δ thin films on LaAlO3: An X-ray reciprocal space mapping study
Published in The Journal of physics and chemistry of solids (01-02-2023)Get full text
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14
Roll-transferred graphene encapsulant for robust perovskite solar cells
Published in Nano energy (01-11-2020)“…Perovskite solar cells (PSCs) have demonstrated enormous potential for use in next-generation photovoltaics because of their promising properties. However, the…”
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15
Strain relaxation in epitaxial SrTi0.5Fe0.5 O3−δ thin films on LaAlO3: An X-ray reciprocal space mapping study
Published in The Journal of physics and chemistry of solids (01-02-2023)“…SrTi0.5Fe0.5O3−δ (STF) has emerged as a promising cathode material for solid oxide fuel cells due to its excellent high ionic and electronic conductivity. We…”
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16
Abnormal lattice behavior of MgH2 in isotope labeled LiBD4-MgH2 composites at the melting of LiBD4
Published in Journal of alloys and compounds (05-11-2019)“…We found abnormal lattice behavior of MgH2 in LiBD4-MgH2 composites at the melting of LiBD4 using high resolution x-ray diffraction measurements. At the LiBD4…”
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17
In Situ Neutron Powder Diffraction and X‑ray Photoelectron Spectroscopy Analyses on the Hydrogenation of MOF‑5 by Pt-Doped Multiwalled Carbon Nanotubes
Published in Journal of physical chemistry. C (20-03-2014)“…Recent research on hydrogen storage in metal–organic frameworks focuses on how to achieve increased hydrogen binding energies by using doped metal, using…”
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18
Methylammonium Nitrate-Mediated Crystal Growth and Defect Passivation in Lead Halide Perovskite Solar Cells
Published in ACS energy letters (10-05-2024)“…Additive engineering has been a crucial strategy to improve photovoltaic properties by reducing carrier trap centers or increasing carrier diffusion lengths in…”
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19
Formation of Frustrated Lewis Pairs in Ptx-Loaded ZeoliteNaY
Published in Angewandte Chemie International Edition (26-10-2015)“…The formation of a frustrated Lewis pair consisting of sodium hydride (Na+H-) and a framework-bound hydroxy proton O(H+) is reported upon H2 treatment of…”
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20
Formation of Frustrated Lewis Pairs in Pt sub(x)-Loaded ZeoliteNaY
Published in Angewandte Chemie International Edition (01-10-2015)“…The formation of a frustrated Lewis pair consisting of sodium hydride (Na super(+)H super(-) ) and a framework-bound hydroxy proton O(H super(+)) is reported…”
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