Yasumitsu Miyata
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View article: Tunable-Diameter Nanoscrolls from Janus WSSe/WSe<sub>2</sub> Heterostructures
Tunable-Diameter Nanoscrolls from Janus WSSe/WSe<sub>2</sub> Heterostructures Open
Janus transition metal dichalcogenide (TMD) nanoscrolls have recently emerged as promising nanostructures for studying curvature- and chirality-dependent physical phenomena. However, systematic strategies to fabricate multilayer Janus TMD …
View article: Structural and Electric Characterization of Sputtered Pt/WSe<sub>2</sub> Contacts toward High-Performance 2D p-FETs
Structural and Electric Characterization of Sputtered Pt/WSe<sub>2</sub> Contacts toward High-Performance 2D p-FETs Open
For high-performance p-type field-effect transistors (FETs) based on two-dimensional (2D) materials, the use of Pt as the contact metal, with its high work function, is advantageous for effective hole injection into the 2D channel. However…
View article: Nano-Raman Spectroscopy Figure of Merit and Chemical Analysis of Contaminations in Single-Layer MoSe<sub>2</sub>
Nano-Raman Spectroscopy Figure of Merit and Chemical Analysis of Contaminations in Single-Layer MoSe<sub>2</sub> Open
Contaminations in the formation of two-dimensional heterostructures can hinder or generate the desired properties. Recent advancements have highlighted the potential of tip-enhanced Raman spectroscopy (TERS) for studying materials in the 2…
View article: Structural basis of substrate diversity and functional evolution of archaeal RNA-splicing endonucleases
Structural basis of substrate diversity and functional evolution of archaeal RNA-splicing endonucleases Open
Maturation of transfer RNA molecules often requires removal of intronic sequences by endonucleases that recognize diverse RNA secondary structures. Archaeal splicing endonucleases [versatile RNA-splicing endonucleases (VSENs)] exhibit rema…
View article: Noise Reduction in Nano‐Raman Spectroscopy Using Principal Component Analysis
Noise Reduction in Nano‐Raman Spectroscopy Using Principal Component Analysis Open
Tip‐enhanced Raman spectroscopy (TERS) combined with principal component analysis (PCA) offers a robust approach for enhancing signal quality and uncovering spectroscopic features otherwise concealed by noise. This study demonstrates that …
View article: Continuous Strain Modulation of Moiré Superlattice Symmetry From Triangle to Rectangle (Small 25/2025)
Continuous Strain Modulation of Moiré Superlattice Symmetry From Triangle to Rectangle (Small 25/2025) Open
View article: Continuous Strain Modulation of Moiré Superlattice Symmetry From Triangle to Rectangle
Continuous Strain Modulation of Moiré Superlattice Symmetry From Triangle to Rectangle Open
Moiré superlattices formed in van der Waals (vdW) bilayers of 2D materials provide an ideal platform for studying previously undescribed physics, including correlated electronic states and moiré excitons, owing to the wide‐range tunability…
View article: Thermally stable Bi2Te3/WSe2 Van Der Waals contacts for pMOSFETs application
Thermally stable Bi2Te3/WSe2 Van Der Waals contacts for pMOSFETs application Open
View article: Microdroplet fusion driving the mass formation of twisted bilayer molybdenum disulfide fragments via spontaneous liquid-liquid phase separation
Microdroplet fusion driving the mass formation of twisted bilayer molybdenum disulfide fragments via spontaneous liquid-liquid phase separation Open
The stacking of 2D materials has attracted attention from emergent properties by Moiré patterns, a degree of freedom that is artificially controlled. However, the current process of arranging Moiré patterns, which involves mechanically rep…
View article: Heavy electron doping in monolayer MoS<sub>2</sub> on a freestanding N-face GaN substrate
Heavy electron doping in monolayer MoS<sub>2</sub> on a freestanding N-face GaN substrate Open
This study explores how gallium nitride (GaN) surface polarity affects the optical properties and surface potential of MoS 2 . Using Raman spectroscopy, photoluminescence, and Kelvin force microscopy (KFM), significant electron doping (∼10…
View article: Surface sensitivity of atomic-resolution secondary electron imaging
Surface sensitivity of atomic-resolution secondary electron imaging Open
The surface sensitivity of high-resolution secondary electron (SE) imaging is examined using twisted bilayers of MoS2 stacked at an angle of 30°. High-resolution SE images of the twisted bilayer MoS2 show a honeycomb structure composed of …
View article: Superatomic Layer of Cubic Mo<sub>4</sub>S<sub>4</sub> Clusters Connected by Cl Cross‐Linking (Adv. Mater. 39/2024)
Superatomic Layer of Cubic Mo<sub>4</sub>S<sub>4</sub> Clusters Connected by Cl Cross‐Linking (Adv. Mater. 39/2024) Open
View article: Superatomic Layer of Cubic Mo<sub>4</sub>S<sub>4</sub> Clusters Connected by Cl Cross‐Linking
Superatomic Layer of Cubic Mo<sub>4</sub>S<sub>4</sub> Clusters Connected by Cl Cross‐Linking Open
Superatomic clusters – assemblies of atoms with various sizes, shapes, and compositions – can form hierarchical architectures that exhibit emergent electronic properties not found in their individual units. In particular, cubic M 4 X 4 clu…
View article: Chemically Tailored Semiconductor Moiré Superlattices of Janus Heterobilayers
Chemically Tailored Semiconductor Moiré Superlattices of Janus Heterobilayers Open
View article: Chemically Tailored Semiconductor Moiré Superlattices of Janus Heterobilayers
Chemically Tailored Semiconductor Moiré Superlattices of Janus Heterobilayers Open
Janus monolayers of transition metal dichalcogenides (TMDCs) are promising building blocks for moiré superlattices because of their built‐in electric field and clean fabrication process. In particular, Janus TMDC monolayers can be chemical…
View article: Emergence of electrochemical catalytic activity via an electrochemical-probe on defective transition metal dichalcogenide nanosheets
Emergence of electrochemical catalytic activity via an electrochemical-probe on defective transition metal dichalcogenide nanosheets Open
Two-dimensional transition metal dichalcogenides (2D TMDs) have shown exceptional electrochemical catalytic activity for the efficient generation of hydrogen through electrochemical water splitting. In the case of molybdenum disulfide (MoS…
View article: Effect of incoherent electron-hole pairs on high harmonic generation in an atomically thin semiconductor
Effect of incoherent electron-hole pairs on high harmonic generation in an atomically thin semiconductor Open
High harmonic generation (HHG) in solids reflects the underlying nonperturbative nonlinear dynamics of electrons in a strong light field and is a powerful tool for ultrafast spectroscopy of electronic structures. Photocarrier doping allows…
View article: Structural Diversity of Single‐Walled Transition Metal Dichalcogenide Nanotubes Grown via Template Reaction (Adv. Mater. 46/2023)
Structural Diversity of Single‐Walled Transition Metal Dichalcogenide Nanotubes Grown via Template Reaction (Adv. Mater. 46/2023) Open
Single-Walled Nanotubes In article number 2306631, Yusuke Nakanishi, Yasumitsu Miyata, and co-workers engineer new single-walled nanotubes of transition metal dichalcogenides with different compositions and chiralities by templating off bo…
View article: Exciton energy transfer under low temperature in a lateral heteromonolayer of WSe<sub>2</sub>–MoSe<sub>2</sub>
Exciton energy transfer under low temperature in a lateral heteromonolayer of WSe<sub>2</sub>–MoSe<sub>2</sub> Open
We examined the exciton energy transfer process in a lateral heteromonolayer of WSe 2 –MoSe 2 at low temperature. Position-dependent photoluminescence (PL) and PL excitation spectroscopy measurements revealed the occurrence of exciton ener…
View article: Synthesis and optical properties of WS2 nanotubes with relatively small diameters
Synthesis and optical properties of WS2 nanotubes with relatively small diameters Open
View article: Structural Diversity of Single‐Walled Transition Metal Dichalcogenide Nanotubes Grown via Template Reaction
Structural Diversity of Single‐Walled Transition Metal Dichalcogenide Nanotubes Grown via Template Reaction Open
Monolayers of transition metal dichalcogenides (TMDs) are an ideal 2D platform for studying a wide variety of electronic properties and potential applications due to their chemical diversity. Similarly, single‐walled TMD nanotubes (SW‐TMDN…
View article: Remote Excitation of Tip-Enhanced Photoluminescence with a Parallel AgNW Coupler
Remote Excitation of Tip-Enhanced Photoluminescence with a Parallel AgNW Coupler Open
Tip-enhanced photoluminescence (TEPL) microscopy allows for the correlation of scanning probe microscopic images and photoluminescent spectra at the nanoscale level in a similar way to tip-enhanced Raman scattering (TERS) microscopy. Howev…
View article: Characterization of band alignment at a metal–MoS<sub>2</sub> interface by Kelvin probe force microscopy
Characterization of band alignment at a metal–MoS<sub>2</sub> interface by Kelvin probe force microscopy Open
Transition metal dichalcogenides, such as MoS 2 , have garnered considerable attention because of their significant potential in device applications. A limiting factor in their development is the formation of a Schottky barrier with strong…
View article: Electrochemical imaging correlated to hydrogen evolution reaction on transition metal dichalcogenide, WS2
Electrochemical imaging correlated to hydrogen evolution reaction on transition metal dichalcogenide, WS2 Open
The ability of two-dimensional, layered transition-metal dichalcogenides (TMDs) to promote hydrogen evolution reaction (HER) has attracted much attention for hydrogen-generation applications. Their electrocatalytic active sites originally …
View article: Sb<sub>2</sub>Te<sub>3</sub>/MoS<sub>2</sub> Van der Waals Junctions with High Thermal Stability and Low Contact Resistance
Sb<sub>2</sub>Te<sub>3</sub>/MoS<sub>2</sub> Van der Waals Junctions with High Thermal Stability and Low Contact Resistance Open
Two‐dimensional transition metal dichalcogenides (TMDCs) demonstrate great potential in nanoelectronics devices owing to their high carrier mobility in the atomically thin channel regime. However, high contact resistance between source/dra…
View article: High-throughput dry transfer and excitonic properties of twisted bilayers based on CVD-grown transition metal dichalcogenides
High-throughput dry transfer and excitonic properties of twisted bilayers based on CVD-grown transition metal dichalcogenides Open
A rapid and dry fabrication process was developed to produce twisted multilayers of chemical vapor deposition grown transition metal chalcogenide (TMDC) monolayers.
View article: Proposal of a new machine learning for classification problems and its application to numeric image classification problems.
Proposal of a new machine learning for classification problems and its application to numeric image classification problems. Open
View article: Observation of the photovoltaic effect in a van der Waals heterostructure
Observation of the photovoltaic effect in a van der Waals heterostructure Open
A van der Waals heterostructure composed of WS 2 /MoS 2 showing a photovoltaic effect with an excitation wavelength of 633 nm.
View article: Ultrafast nanoscale exciton dynamics via laser-combined scanning tunneling microscopy in atomically thin materials
Ultrafast nanoscale exciton dynamics via laser-combined scanning tunneling microscopy in atomically thin materials Open
Long-term stable excitons, bound pairs of electrons and holes, in van der Waals materials were found to be handled at room temperature, paving the way to develop optoelectronic/photonic devices for future high-speed communication technolog…
View article: Efficient and Chiral Electroluminescence from In‐Plane Heterostructure of Transition Metal Dichalcogenide Monolayers (Adv. Funct. Mater. 40/2022)
Efficient and Chiral Electroluminescence from In‐Plane Heterostructure of Transition Metal Dichalcogenide Monolayers (Adv. Funct. Mater. 40/2022) Open
Transition Metal Dichalcogenide Monolayers In article number 2203602, Jiang Pu, Taishi Takenobu, Yasumitsu Miyata, and co-workers report interfacial electroluminescence in in-plane heterostructures based on transition metal dichalcogenide …