Christopher C. Leon
YOU?
Author Swipe
View article: Scanning Tunneling Microscopy for Molecules: Manipulating Electron Transport through the Conduction Gap by Varying the Buffer Layer
Scanning Tunneling Microscopy for Molecules: Manipulating Electron Transport through the Conduction Gap by Varying the Buffer Layer Open
View article: Structural Control of Atomic Silicon Wires
Structural Control of Atomic Silicon Wires Open
Bare Si(100)-2 × 1 surface atoms exhibit a buckled structure where one Si atom in a dimer is lowered while the other is raised, leading to two possible buckling configurations equivalent in energy. The relatively low energy barrier between…
View article: Charge Transfer of Metal Porphyrins on a NaCl Thin Film Observed by Scanning Tunneling Microscopy in the Transport Gap
Charge Transfer of Metal Porphyrins on a NaCl Thin Film Observed by Scanning Tunneling Microscopy in the Transport Gap Open
Elucidating the electronic structure of organic molecules in contact with a dielectric layer is essential to understanding and controlling many important processes, such as catalysis, photochemistry, and electroluminescence. However, this …
View article: Electronic structures of atomic silicon dimer wires as a function of length
Electronic structures of atomic silicon dimer wires as a function of length Open
Bare silicon dimers on hydrogen-terminated Si(100) have two dangling bonds. These are atomically localized regions of high state density near to and within the bulk silicon band gap. We studied bare silicon dimers as monomeric units. Silic…
View article: Electronic Structures of Atomic Silicon Dimer Wires as a Function of Length
Electronic Structures of Atomic Silicon Dimer Wires as a Function of Length Open
Bare silicon dimers on hydrogen-terminated Si(100) have two dangling bonds. These are atomically localized regions of high state density near to and within the bulk silicon band gap. We studied bare silicon dimers as monomeric units. Silic…
View article: Scanning Tunneling Microscopy for Molecules: Effects of Electron Propagation into Vacuum
Scanning Tunneling Microscopy for Molecules: Effects of Electron Propagation into Vacuum Open
Using scanning tunneling microscopy (STM), we experimentally and theoretically investigate isolated platinum phthalocyanine (PtPc) molecules adsorbed on an atomically thin NaCl(100) film vapor deposited on Au(111). We obtain good agreement…
View article: Scanning Tunneling Microscopy for Molecules: Manipulating Electron Transport through the Conduction Gap by varying Buffer Layer
Scanning Tunneling Microscopy for Molecules: Manipulating Electron Transport through the Conduction Gap by varying Buffer Layer Open
In scanning tunneling microscopy of molecules, an insulating buffer layer is often introduced to reduce interactions between adsorbed molecules and the substrate. Focusing on tunneling through the molecule's electronic transport gap, we de…
View article: Scanning Tunneling Microscopy for Molecules: Effects of Electron Propagation into Vacuum
Scanning Tunneling Microscopy for Molecules: Effects of Electron Propagation into Vacuum Open
Using scanning tunneling microscopy (STM), we experimentally and theoretically investigate isolated platinum phthalocyanine (PtPc) molecules adsorbed on atomically thin NaCl(100) vapor deposited on Au(111). We obtain good agreement between…
View article: Lack of racial and ethnic diversity in lung cancer cell lines contributes to lung cancer health disparities
Lack of racial and ethnic diversity in lung cancer cell lines contributes to lung cancer health disparities Open
Lung cancer is the leading cause of cancer death in the United States and worldwide, and a major source of cancer health disparities. Lung cancer cell lines provide key in vitro models for molecular studies of lung cancer development and p…
View article: P2.31-02 Real-World Survival Outcomes in NSCLC in Adults Ages 50 and Younger at a Large Academic Institution
P2.31-02 Real-World Survival Outcomes in NSCLC in Adults Ages 50 and Younger at a Large Academic Institution Open
View article: Design and realization of lung organoid cultures for COVID-19 applications
Design and realization of lung organoid cultures for COVID-19 applications Open
View article: Character of Electronic States in the Transport Gap of Molecules on Surfaces
Character of Electronic States in the Transport Gap of Molecules on Surfaces Open
We report on scanning tunneling microscopy (STM) topographs of individual metal phthalocyanines (MPc) on a thin salt (NaCl) film adsorbed on a gold substrate, at tunneling energies within the molecule's electronic transport gap. Theoretica…
View article: Charging and Electric Field Effects on Hydrogen Molecules Physisorbed on Graphene
Charging and Electric Field Effects on Hydrogen Molecules Physisorbed on Graphene Open
Molecular hydrogen adsorbed on graphene was investigated by analyzing rotational excitation spectra obtained with a gate-tunable scanning tunneling microscope (STM). Through the shift of the rotational excitation energy, the tunability of …
View article: Real world prognostic utility of platelet lymphocyte ratio and nutritional status in first-line immunotherapy response in stage IV non-small cell lung cancer
Real world prognostic utility of platelet lymphocyte ratio and nutritional status in first-line immunotherapy response in stage IV non-small cell lung cancer Open
We evaluated real-world prognostic utility of platelet lymphocyte ratio (PLR), body mass index (BMI), and albumin level in 75 Stage IV NSCLC patients receiving first line IO. Patients with a composite of BMI < 22, albumin < 3.5 g/dL, and P…
View article: Possible Universal Limit for Valence Parton Distributions
Possible Universal Limit for Valence Parton Distributions Open
We report the observation of the existence of a possible universal limit for valence parton distributions that should exist once partonic degrees of freedom are relevant for high energy scattering from strongly interacting bound systems li…
View article: Anionic character of the conduction band of sodium chloride
Anionic character of the conduction band of sodium chloride Open
The alkali halides are ionic compounds. Each alkali atom donates an electron to a halogen atom, leading to ions with full shells. The valence band is mainly located on halogen atoms, while, in a traditional picture, the conduction band is …
View article: Source data for the article: Anionic Character of the Conduction Band of Sodium Chloride
Source data for the article: Anionic Character of the Conduction Band of Sodium Chloride Open
All datasets (and topography maps) needed to evaluate the conclusions in the main text.Fig 1. STM study of bilayer NaCl on Au(111)Fig 2. STM of trilayer NaCl near conduction band onsetFig 3. Character of the gap states…
View article: Band Bending and Beyond
Band Bending and Beyond Open
In the band bending (BB) picture, electric potentials assumed to be constant parallel to a surface rigidly shift the pristine electronic structure of semiconductors. This approximation is often applied in scanning tunneling microscopy (STM…
View article: Gold Chain Formation <i>via</i> Local Lifting of Surface Reconstruction by Hot Electron Injection on H<sub>2</sub>(D<sub>2</sub>)/Au(111)
Gold Chain Formation <i>via</i> Local Lifting of Surface Reconstruction by Hot Electron Injection on H<sub>2</sub>(D<sub>2</sub>)/Au(111) Open
The hexagonal close packed surface of gold shows a 22 × "herringbone" surface reconstruction which makes it unique among the (111) surfaces of all metals. This long-range energetically favored dislocation pattern appears in response to th…
View article: Atomic-Scale Dynamics Probed by Photon Correlations
Atomic-Scale Dynamics Probed by Photon Correlations Open
Light absorption and emission have their origins in fast atomic-scale phenomena. To characterize these basic steps (e.g., in photosynthesis, luminescence, and quantum optics), it is necessary to access picosecond temporal and…
View article: Single Photon Emission from a Plasmonic Light Source Driven by a Local Field-Induced Coulomb Blockade
Single Photon Emission from a Plasmonic Light Source Driven by a Local Field-Induced Coulomb Blockade Open
A hallmark of quantum control is the ability to manipulate quantum emission at the nanoscale. Through scanning tunneling microscopy-induced luminescence (STML), we are able to generate plasmonic light originating from inelastic tunneling p…
View article: Probing the Magnetism of Topological End States in 5-Armchair Graphene Nanoribbons
Probing the Magnetism of Topological End States in 5-Armchair Graphene Nanoribbons Open
We extensively characterize the electronic structure of ultranarrow graphene nanoribbons (GNRs) with armchair edges and zigzag termini that have five carbon atoms across their width (5-AGNRs), as synthesized on Au(111). Scanning tunneling …
View article: A Single Hydrogen Molecule as an Intensity Chopper in an Electrically Driven Plasmonic Nanocavity
A Single Hydrogen Molecule as an Intensity Chopper in an Electrically Driven Plasmonic Nanocavity Open
Photon statistics is a powerful tool for characterizing the emission dynamics of nanoscopic systems and their photophysics. Recent advances that combine correlation spectroscopy with scanning tunneling microscopy induced luminescence (STML…
View article: Single Charge and Exciton Dynamics Probed by Molecular-Scale-Induced Electroluminescence
Single Charge and Exciton Dynamics Probed by Molecular-Scale-Induced Electroluminescence Open
Excitons and their constituent charge carriers play the central role in electroluminescence mechanisms determining the ultimate performance of organic optoelectronic devices. The involved processes and their dynamics are often studied with…
View article: Photon super-bunching from a generic tunnel junction
Photon super-bunching from a generic tunnel junction Open
Generating correlated photon pairs at the nanoscale is a prerequisite to creating highly integrated optoelectronic circuits that perform quantum computing tasks based on heralded single-photons. Here we demonstrate fulfilling this requirem…
View article: Bimodal exciton-plasmon light sources controlled by local charge carrier injection
Bimodal exciton-plasmon light sources controlled by local charge carrier injection Open
Exciton and plasmon emission can be separately controlled on organic films by using different charge injection channels.
View article: Gold-nickel surface alloy chemistry with oxygen and carbon monoxide
Gold-nickel surface alloy chemistry with oxygen and carbon monoxide Open
Key to low temperature carbon monoxide oxidation on
gold-nickel random surface alloys is molecularly (rather than
atomically) adsorbed oxygen, and weakly bound carbon monoxide. To
characterize these adsorbates, saturation coverages of each…