Satoshi Kera
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View article: Fingerprinting weak electronic interaction at a van der Waals interface: Fano signatures in a pentacene monolayer on graphite
Fingerprinting weak electronic interaction at a van der Waals interface: Fano signatures in a pentacene monolayer on graphite Open
We investigated the influence of van der Waals interactions on the electronic structure at the interface between a pentacene monolayer and a graphite surface. Upon cooling below 130 K, the pentacene molecules form a densely packed monolaye…
View article: Enantiospecific mirror-imaged growth in overlayers of enantiopure thiadiazole-[9]helicene on Au(111) without commensurability
Enantiospecific mirror-imaged growth in overlayers of enantiopure thiadiazole-[9]helicene on Au(111) without commensurability Open
Two-dimensional (2D) crystallization of chiral molecules on achiral crystal surfaces typically exhibits mirror-imaged growth, defined by the substrate’s mirror plane and the lattices of each enantiomer. While various commensurate molecular…
View article: Direct observation of the electronic structure and many-body interactions of low-mobility carriers in perylene diimide derivative
Direct observation of the electronic structure and many-body interactions of low-mobility carriers in perylene diimide derivative Open
Despite the rapid progresses in the field of organic semiconductors, aided by the development of high-mobility organic materials, their high carrier mobilities are often unipolar, being sufficiently high only for either electrons or holes.…
View article: Development of dual-beamline photoelectron momentum microscopy for valence orbital analysis
Development of dual-beamline photoelectron momentum microscopy for valence orbital analysis Open
The soft X-ray photoelectron momentum microscopy (PMM) experimental station at the UVSOR Synchrotron Facility has been recently upgraded by additionally guiding vacuum ultraviolet (VUV) light in a normal-incidence configuration. PMM offers…
View article: On-surface growth of transition-metal cobalt nanoclusters using a 2D crown-ether array
On-surface growth of transition-metal cobalt nanoclusters using a 2D crown-ether array Open
We report an on-surface growth of transition-metal nanoclusters using a 2D self-assembled monolayer (SAM) crown ether ring molecular array prepared on Cu(111).
View article: Prospects required for future light-source facilities: a case of UVSOR synchrotron facility
Prospects required for future light-source facilities: a case of UVSOR synchrotron facility Open
The synchrotron radiation facility is a large-scale public infrastructure that provides advanced light sources and is used for various academic research and application development. For 40 years, UVSOR Synchrotron Facility has been leading…
View article: Proving weak electronic interaction between molecules and substrate: a study of pentacene monolayer on graphite
Proving weak electronic interaction between molecules and substrate: a study of pentacene monolayer on graphite Open
The impact of van der Waals interaction on the electronic structure between a pentacene monolayer and a graphite surface was investigated. Upon cooling the monolayer, newly formed dispersive bands, showing the constant final state nature o…
View article: Hole Doping to Perylene on Au(110): Photoelectron Momentum Microscopy
Hole Doping to Perylene on Au(110): Photoelectron Momentum Microscopy Open
Photoemission spectroscopy of the perylene layers on the Au(110) surface was performed using a momentum microscope. The two-dimensional momentum maps of the perylene monolayer exhibit a "binary star" pattern with two asymmetric bright spot…
View article: UVSOR Synchrotron Facility Update
UVSOR Synchrotron Facility Update Open
UVSOR is a Japanese low-energy synchrotron light source that has been operational since 1983. It has 750 MeV electron beam energy and a circumference of 53 m. The machine has undergone two major upgrades and is now called UVSOR-III, with a…
View article: On-surface synthesis of disilabenzene-bridged covalent organic frameworks
On-surface synthesis of disilabenzene-bridged covalent organic frameworks Open
Substituting carbon with silicon in organic molecules and materials has long been an attractive way to modify their electronic structure and properties. Silicon-doped graphene-based materials are known to exhibit exotic properties, yet con…
View article: Domain-Resolved Photoelectron Microscopy and µm-Scale Momentum-Resolved Photoelectron Spectroscopy of Graphite Armchair Edge Facet
Domain-Resolved Photoelectron Microscopy and µm-Scale Momentum-Resolved Photoelectron Spectroscopy of Graphite Armchair Edge Facet Open
The photoelectron momentum microscope is a device that combines a photoelectron emission microscope with an electron energy analyzer to achieve both µm-scale valence band mapping and momentum-selective photoelectron microscopy, i.e., µm-VB…
View article: Resonant Photoemission Spectroscopy of Highly-Oriented-Coronene Monolayer using Photoelectron Momentum Microscope
Resonant Photoemission Spectroscopy of Highly-Oriented-Coronene Monolayer using Photoelectron Momentum Microscope Open
Information of spatial and energy distribution of the electronic state described from the localized molecular orbitals is important to understand the electronic and optical properties of molecular materials. In this study, photoemission sp…
View article: Thickness‐Dependent Energy‐Level Alignment at the Organic–Organic Interface Induced by Templated Gap States
Thickness‐Dependent Energy‐Level Alignment at the Organic–Organic Interface Induced by Templated Gap States Open
Planar organic heterostructures are widely explored and employed in photovoltaic cells, light‐emitting diodes, and bilayer field‐effect transistors. An important role for device performance plays the energy level alignment at the inorganic…
View article: On-Surface Synthesis of Disilabenzene-Bridged Covalent Organic Frameworks
On-Surface Synthesis of Disilabenzene-Bridged Covalent Organic Frameworks Open
Here you will find the list of folders and their contents used to generate the data and the figures published on "On-Surface Synthesis of Disilabenzene-Bridged Covalent Organic Frameworks" paper On SiCOF_data.zip you will find the followin…
View article: On-Surface Synthesis of Disilabenzene-Bridged Covalent Organic Frameworks
On-Surface Synthesis of Disilabenzene-Bridged Covalent Organic Frameworks Open
Here you will find the list of folders and their contents used to generate the data and the figures published on "On-Surface Synthesis of Disilabenzene-Bridged Covalent Organic Frameworks" paper On SiCOF_data.zip you will find the followin…
View article: Silabenzene Incorporated Covalent Organic Frameworks
Silabenzene Incorporated Covalent Organic Frameworks Open
Covalent organic frameworks (COFs) are a promising material for various applications such as gas storage/separation, catalysis, and energy storage, besides offering a confined space for chemical reaction. The introduction of unconventional…
View article: CCDC 1819038: Experimental Crystal Structure Determination
CCDC 1819038: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1819035: Experimental Crystal Structure Determination
CCDC 1819035: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1819036: Experimental Crystal Structure Determination
CCDC 1819036: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 1819037: Experimental Crystal Structure Determination
CCDC 1819037: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Development of Photoelectron Momentum Microscope to Molecular Science
Development of Photoelectron Momentum Microscope to Molecular Science Open
Photoelectron angular distribution from the valence state of π-conjugated molecules on the surface has been studied to clarify the molecular orientation quantitatively with multiple scattering theory of photoelectron emission intensity. Af…
View article: Photoelectron Momentum Microscope : Development at UVSOR Synchrotron Facility
Photoelectron Momentum Microscope : Development at UVSOR Synchrotron Facility Open
Three-dimensional momentum-resolved photoelectron spectroscopy with a µm-order field of view was achieved by combining Photoelectron Momentum Microscope with a soft X-ray synchrotron radiation source. We built a new experimental station de…
View article: Temperature‐Dependent Electronic Ground‐State Charge Transfer in van der Waals Heterostructures
Temperature‐Dependent Electronic Ground‐State Charge Transfer in van der Waals Heterostructures Open
Electronic charge rearrangement between components of a heterostructure is the fundamental principle to reach the electronic ground state. It is acknowledged that the density of state distribution of the components governs the amount of ch…
View article: Contrast Inversion of Photoelectron Spectro-microscopy Image
Contrast Inversion of Photoelectron Spectro-microscopy Image Open
The contrast of a photoelectron microscopy image depends on the type of excitation photon source and the photoelectron kinetic energy. The contrast inversion observed in the photoelectron image by Hg lamp excitation is due to differences i…
View article: Temperature-dependent electronic ground state charge transfer in van der\n Waals heterostructures
Temperature-dependent electronic ground state charge transfer in van der\n Waals heterostructures Open
Electronic charge rearrangement between components of a heterostructure is\nthe fundamental principle to reach the electronic ground state. It is\nacknowledged that the density of states distribution of the components governs\nthe amount o…
View article: Highly Soluble CsPbBr<sub>3</sub> Perovskite Quantum Dots for Solution-Processed Light-Emission Devices
Highly Soluble CsPbBr<sub>3</sub> Perovskite Quantum Dots for Solution-Processed Light-Emission Devices Open
We report on the synthesis of CsPbBr3 perovskite quantum dots (PeQDs) with a high solubility of 75 g/L in toluene and a good film-forming property, as enabled by a dense layer of didodecyldimethylammonium bromide and octanoic acid surface …
View article: Accessing the conduction band dispersion in CH3NH3PbI3 single crystals
Accessing the conduction band dispersion in CH3NH3PbI3 single crystals Open
The conduction band structure in methylammonium lead iodide (CH3NH3PbI3) was studied both by angle-resolved two-photon photoemission spectroscopy (AR-2PPE) with low-photon intensity and angle-resolved low-energy inverse photoelectron spect…
View article: CCDC 1901496: Experimental Crystal Structure Determination
CCDC 1901496: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Room-Temperature Deposition of Cobalt Monolayer on (7×4) Crown-Ether Ring Molecular Array : Ultra-High Vacuum STM and UPS Study
Room-Temperature Deposition of Cobalt Monolayer on (7×4) Crown-Ether Ring Molecular Array : Ultra-High Vacuum STM and UPS Study Open
Monolayer deposition of cobalt was demonstrated on a well-ordered ring molecular array at room temperature in ultra-high vacuum by means of home-built low-temperature scanning tunneling microscopy (STM) and ultraviolet photoelectron spectr…