A5043175009- Crystallization and Solubility Studies
- Electrohydrodynamics and Fluid Dynamics
- X-ray Diffraction in Crystallography
- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
- Ionic liquids properties and applications
- Ion-surface interactions and analysis
- Inorganic Fluorides and Related Compounds
- Thin-Film Transistor Technologies
- Nanofabrication and Lithography Techniques
- Diamond and Carbon-based Materials Research
- Organic Electronics and Photovoltaics
- Mass Spectrometry Techniques and Applications
- Synthesis and Characterization of Heterocyclic Compounds
- High-pressure geophysics and materials
- Block Copolymer Self-Assembly
- Crystallography and molecular interactions
- Force Microscopy Techniques and Applications
- Organic Light-Emitting Diodes Research
- Pickering emulsions and particle stabilization
- Innovative Microfluidic and Catalytic Techniques Innovation
- nanoparticles nucleation surface interactions
- Semiconductor materials and devices
- Nonlinear Optical Materials Research
- Electronic and Structural Properties of Oxides
Kyoto University
2023-2024
Sophia University
2016-2018
Perovskite oxides ABO3 continue to be a major focus in materials science. Of particular interest is the interplay between A and B cations as exemplified by intersite charge transfer (ICT), which causes novel phenomena including negative thermal expansion metal-insulator transition. However, ICT properties were achieved optimized cationic substitution or ordering. Here we demonstrate an anionic approach induce using oxyhydride perovskite, EuVO2H, has alternating layers of EuH VO2. bulk EuVO2H...
Electrolyte gating, exemplified by ionic liquid gating (ILG), has emerged as a promising technique for modifying the physical properties of transition-metal oxides through cation intercalations, such H+ and Li+. However, anion insertion ILG remains largely unexplored, except O2–. In this study, we have developed an ILG-based F– method to allow oxidative fluorine without loss oxide ions. Employing solution tetramethylammonium fluoride tetrahydrate in 1-methyl-1-propylpyrrolidinium...
In this study, we investigated the multi‐jet mode modified electrospray deposition (ESD) production of NPB/Alq 3 small‐molecule multilayer structures with suppressed interface mixing, using common solvents. Observations initial stage and analysis photoluminescence spectra structure were conducted. It was demonstrated that, by optimizing conditions, surface erosion NPB layer initiation mixing between Alq layers could be suppressed. A 55‐nm NPB/60‐nm intermixing smooth morphology (RMS...
Abstract The development of a solution-based technique for the deposition small-molecule organic thin films is desirable advancement devices. In this study, we investigated characteristics an film deposited by modified electrospray with three typical spraying modes: Taylor cone, convergent jet, and multijet. results indicate that multijet mode can generate smallest droplets narrowest size distribution. Using mode, pinhole-free, smooth CBP:PBD:TPD:Ir(mppy) 3 root-mean-square surface roughness 2.5 nm.
Perovskite oxyhydride EuVO2H exhibits a Mott insulating state derived from VIIIO2 layers and ferromagnetic EuIIH layers, with compressive strain inducing intersite charge transfer (ICT) in thin films, accompanied by an increased transition temperature (TC) the emergence of perpendicular magnetic anisotropy (PMA). While ICT has previously been adjusted film thickness (or substrate strain), this study demonstrates its control Eu-site substitution Sr. Utilizing topochemical hydride reduction,...
A novel crystal growth technique is proposed that uses a thin ionic liquid film with an extremely low vapor pressure as the field, and solute supplied by electrospray deposition through surface of film. The precipitation properties small molecule Alq 3 single crystals were investigated at 25 °C under atmospheric in nitrogen atmosphere. Using method, aggregated less than 10 μm, rhombic plate‐like diagonal lengths 50 hexagonal 100 μm precipitated when solution supply rates (supply times) 8.0...
Development of solution based small-molecular organic thin film deposition technique is important for further prevalence and expansion the combinatorial variety materials devices. The electrospray (ESD) a candidate wet materials. In this study, we investigated characteristics mixed small molecular material CBP:PBD:TPD:Ir(mppy) <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> using chlorobenzene with three typical spray modes Taylor-cone,...
Realization of wet fabrication process for small-molecule laminated structures are attractive to spread the application field high performance organic devices due large area capability and cost effective mass production. In this study, we present Alq <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> /NPB with suppressed interface mixing by electrospray deposition (ESD). It was shown that ESD can deposit solution small diameter less than 1...
2D-like indentations are performed by molecular dynamics simulation as “nanometric indentation cutting”. A 90 degree triangle rigid bcc-Fe indenter with (001) or (110) surfaces is continuously drove into single crystalline fcc-Ni and Cu free side surface, on three different top of (001), (111) the work materials. Despite large difference in elastic constants, there little repulsive force between Ni during cutting. This because plastic deformation dislocation emission immediately occurs...