Local Optical Characterization Related to Si Cluster Concentration in GaAs Using Scanning Tunneling Microscope Cathodoluminescence Spectroscopy
スポンサーリンク
概要
- 論文の詳細を見る
We studied local optical properties of Si-doped GaAs(110) surface by scanning tunneling microscope cathodoluminescence (STM-CL) spectroscopy, where low-energy (${\sim}100$ eV) electrons field-emitted from STM tips were used as bright excitation sources. Each STM-CL spectrum of the GaAs surface showed a sharp GaAs band-edge emission peak and a broad peak at ${\sim}1$ eV related to Si clusters composed of Si impurities and vacancies. The intensity ratio of the sharp peak to the broad peak in the STM-CL spectrum depended on the measurement position under the same excitation density. This locality is considered to be originated from the local Si cluster concentration. We also observed the correlation between the redshifts of the band-edge emission peaks and high Si impurity concentrations. Our study demonstrated that STM-CL spectroscopy is a useful tool to evaluate the local Si cluster concentration with high spatial resolution.
- 2008-07-25
著者
-
Watanabe Kentaro
Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo
-
Nakamura Yoshiaki
Department Of Aeronautical Engineering Nagoya University
-
Ichikawa Masakazu
Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan
-
Ichikawa Masakazu
Department of Applied Physics, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
-
Nakamura Yoshiaki
Department of Applied Physics, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
-
Watanabe Kentaro
Department of Applied Physics, Graduate School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan
-
Watanabe Kentaro
Department of Applied Physics, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
関連論文
- Energy Separation in High Subsonic Turbine Cascade
- Novel Flow Control Method for Vortex Shedding of Turbine Blade
- Unsteady Aerodynamic Interaction between Two Bodies at Hypersonic Speed
- Control of Leakage Flow by Triple Squealer Configuration in Axial Flow Turbine
- Morphing-Based Shape Optimization in Computational Fluid Dynamics
- Correlation between Linear Stability Theory and Transition of Compressible Jet Shear Layer
- N-acetylcysteine improves cytotoxic activity of cirrhotic rat liver-associated mononuclear cells
- Dynamic Helical CT Mammography of Breast Cancer
- A case of pediatric gastrointestinal stromal tumor of the stomach
- Control of a Falling Body with a Mathematical Model for Unsteady Aerodynamic Force
- Incompressible Flow Solver of Arbitrarily Moving Bodies with Rigid Surface
- LTC-3 Possible right single lung transplantation for a bronchiectasis patient with a prior left lower lobectomy : Is performing a completion pneumonectomy in advance for a potential transplant candidate ethically acceptable?(Lung Transplant Conference)
- On Instability of Acoustic Waves Propagating in Stratified Vortical Flows
- A Cartesian Grid Generation Method Considering a Complicated Cell Geometry at the Body Surface
- Role of Intermolecular Separation in Nanoscale Patterning C_ Films by Local Injection of Electrons from Scanning Tunneling Microscope Tip
- Epithelial-mesenchymal transition in human lungs with usual interstitial pneumonia : Quantitative immunohistochemistry
- Brewer's yeast cell wall affects microbiota composition and decreases Bacteroides fragilis populations in an anaerobic gut intestinal model(BREWING AND FOOD TECHNOLOGY)
- Fluorescence Anisotropy and Rotational Diffusion of Two Kinds of 4-n-alkyl-4’-cyanobiphenyls in Glycerol
- Synthesis of a New Tridentate Anthracene Ligand Bearing (i-Pr9_2P Group at 1,8-Positions: Facile Bond Switch on Tetracoordinate Boron Atom
- A CURVILINEAR COORDINATE METHOD FOR THE SOLUTIONS OF INITIAL VALUE PROBLEMS USING THE THIRD-ORDER UPWIND DIFFERENCING SCHEME
- Liver Abscess and Aeromonas Bacteremia with Septic Pulmonary Embolism
- Development of Novel System Combining Scanning Tunneling Microscope-Based Cathodoluminescence and Electroluminescence Nanospectroscopies
- A case of HER-2-positive advanced inflammatory breast cancer with invasive micropapillary component showing a clinically complete response to concurrent trastuzumab and paclitaxel treatment
- Photoelectron Spectroscopy of Scandium-Arene Complex Anions
- Comparison between Hot and Cold Flow Conditions of Turbine Cascade
- Synthesis of a Falling Body Controller with Modeling Error of Aerodynamic Force
- Relationship between diabetic retinopathy and vascular endothelial function in elderly type 2 diabetic Japanese patients without cardiovascular disease
- Profile measurement of a wide-area resist surface using a multi-ball cantilever system
- Hydrogen Generation Using a Photoinduced Electron-transport System with a Molecular Catalyst in Vesicles
- The Correction of the Mean Inner Potential in Electron Diffraction
- Inelastic Scattering of Low Energy Electrons by the Crystal
- Passive Separation Control on a Square Cylinder at Transonic Speed
- Ferromagnetism of Electron Solid
- Effect of Nozzle Lip Shape on Screech Tone in a Supersonic Jet
- Passive Separation Control on a Body at Transonic Speed
- Elevated Serum Uric Acid in Patients with Severe Obstructive Sleep Apnea-Hypopnea Syndrome
- Pressure- and Temperature-Sensitive Paint Measurements in Shock Tunnel
- Nocturia in Male Patients with Obstructive Sleep Apnea : Efficacy of Medication for Benign Prostatic Hypertrophy
- Effects of Tip Cavity Depth, Width, and Location on the Leakage Flow in an Axial Turbine Cascade
- Local Optical Characterization Related to Si Cluster Concentration in GaAs Using Scanning Tunneling Microscope Cathodoluminescence Spectroscopy
- Identifying risk factors for refractory febrile neutropenia in patients with lung cancer
- The clinical efficacy and safety of a fluoroquinolone-containing regimen for pulmonary MAC disease
- A Multicenter Study Design to Assess the Clinical Usefulness of Semi-Automatic Measurement of Flow-Mediated Vasodilatation of the Brachial Artery
- Numerical Investigation of Supersonic Oscillatory Flow with Strong Interference over a Capsule-shaped Abort System
- First reported case of hemoglobin lansing in Asia detected by false low oxygen saturation on pulse oximetry
- Numerical simulations and experimental comparisons for high-speed nonequilibrium air flows
- Theory of Localized Plasmons for Metal Nanostructures in Random-Phase Approximation
- Flow Calculation of Moving Body on Cartesian Grid by Using New Cell-Merging Method
- The clinical efficacy and safety of micafungin-itraconazole combination therapy in patients with pulmonary aspergilloma
- Numerical Analysis of Flow Field and Aerodynamic Characteristics of a Quadrotor
- Numerical Simulation of Supersonic Aerodynamic Interaction of a Parachute System
- Aerodynamic Heating of a Gap in the Hypersonic Laminar Boundary Layer
- Role of Intermolecular Separation in Nanoscale Patterning C60 Films by Local Injection of Electrons from Scanning Tunneling Microscope Tip
- Vinyl Polymerization. 327. Determination of the Initiating Radical Species in Polymerization with a Dimethylmercury and Copper(II)-Ion System
- Vinyl polymerization. CCCXLI. A proposal of a mechanism for radical polymerization of vinyl monomers with sodium polymethallylsulfonate.
- Combined Unclassifiable Interstitial Pneumonia and Emphysema: A Report of Two Cases
- Shedding of herpes simplex virus type 1 into saliva after surgery for oral and genital or urological cancer parients.
- Numerical Investigation of Supersonic Oscillatory Flow with Strong Interference over a Capsule-shaped Abort System
- Treatment outcome of the two-part semi-rigid oral appliance in obstructive sleep apnea
- Elevation of serum C-reactive protein predicts failure of the initial antimicrobial treatment for febrile neutropenia with lung cancer
- Verification of acoustic and aerodynamic pressure fluctuations in near acoustic field by wavenumber-frequency spectrum