What is he best known for?
The fields of study he is best known for:
- Quantum mechanics
- Electron
- Oxygen
The scientist’s investigation covers issues in Photocatalysis, Nanotechnology, Semiconductor, Surface energy and Oxygen evolution.
The Photocatalysis study combines topics in areas such as Inorganic chemistry, Nano- and Doping, Dopant.
His research investigates the connection between Inorganic chemistry and topics such as Water splitting that intersect with problems in Hydrogen production, Absorption edge, Fermi level, Chemical physics and Hydrogen.
His studies deal with areas such as Surface reactivity and Energy conversion efficiency as well as Nanotechnology.
The concepts of his Surface energy study are interwoven with issues in Wavelength, Alkalinity, Irradiation, Facet and Quantum efficiency.
His Facet research is multidisciplinary, relying on both Energy, Active surface and Physical chemistry.
His most cited work include:
- Nano‐photocatalytic Materials: Possibilities and Challenges (2605 citations)
- Nano‐photocatalytic Materials: Possibilities and Challenges (2605 citations)
- Facet Effect of Single-Crystalline Ag3PO4 Sub-microcrystals on Photocatalytic Properties (1042 citations)
What are the main themes of his work throughout his whole career to date?
Naoto Umezawa focuses on Density functional theory, Photocatalysis, Chemical physics, Band gap and Dielectric.
His Density functional theory research incorporates themes from Electron mobility, Inorganic chemistry, Absorption, Atom and Electronic band structure.
Naoto Umezawa has researched Photocatalysis in several fields, including Nanotechnology, Doping, Dopant, Semiconductor and Visible spectrum.
His research in Nanotechnology intersects with topics in Nano- and Surface energy.
His research on Chemical physics also deals with topics like
- Electronic structure, which have a strong connection to Crystallography,
- Hydrogen which is related to area like Water splitting.
His Band gap study combines topics in areas such as Valence, Perovskite and Nanosheet.
He most often published in these fields:
- Density functional theory (32.75%)
- Photocatalysis (35.81%)
- Chemical physics (34.93%)
What were the highlights of his more recent work (between 2017-2021)?
- Density functional theory (32.75%)
- Electronic structure (22.71%)
- Chemical physics (34.93%)
In recent papers he was focusing on the following fields of study:
Naoto Umezawa mostly deals with Density functional theory, Electronic structure, Chemical physics, Semiconductor and Ab initio.
His studies in Density functional theory integrate themes in fields like Impurity, Particle size, Composite number, Photoluminescence and Surface energy.
His work deals with themes such as Optoelectronics and Absorption, which intersect with Electronic structure.
His Chemical physics research is multidisciplinary, incorporating elements of Wide-bandgap semiconductor and Electron mobility.
His Semiconductor course of study focuses on Crystallographic defect and Inorganic chemistry, Spinel, Energetics and Conductivity.
Naoto Umezawa works mostly in the field of Direct and indirect band gaps, limiting it down to topics relating to Nanosheet and, in certain cases, Photocatalysis.
Between 2017 and 2021, his most popular works were:
- Spontaneous Direct Band Gap, High Hole Mobility, and Huge Exciton Energy in Atomic-Thin TiO2 Nanosheet (15 citations)
- Optical properties of single crystalline copper iodide with native defects: Experimental and density functional theoretical investigation (9 citations)
- Optical properties of single crystalline copper iodide with native defects: Experimental and density functional theoretical investigation (9 citations)
In his most recent research, the most cited papers focused on:
- Quantum mechanics
- Electron
- Oxygen
Naoto Umezawa spends much of his time researching Thin film, Photoluminescence, Density functional theory, Impurity and Band gap.
His Thin film research is multidisciplinary, incorporating perspectives in Orthorhombic crystal system, Pseudobrookite, Silicon, Epitaxy and Dielectric.
His Photoluminescence research incorporates themes from Vacancy defect, Iodide, Semiconductor and Copper.
His research integrates issues of Polaron, Electron, Single crystal and Lattice in his study of Density functional theory.
His studies deal with areas such as Valence, Stoichiometry, Photocathode and Electrode as well as Band gap.
His Photocatalysis research extends to the thematically linked field of CZTS.
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