Field Emission Stability of Individual Multi-Walled Carbon Nanotubes
スポンサーリンク
概要
- 論文の詳細を見る
We investigated the emission stability of individual multi-walled carbon nanotubes (MWNTs) and clarified the mechanism of emission current instability. An initial decrease in the emission current, which is generally seen in the case of metal emitters, was hardly observed. Furthermore, the current fluctuation was much lower than that for a metal emitter, and the peak-to-peak fluctuation was less than 2% when the emission pattern was pentagonal. However, spikelike and steplike noises occurred, with a frequency approximately proportional to the product of the emission current and the background pressure. These noises may be caused by physical adsorption and ion impact desorption of residual gas molecules. The number of these noise events depended on the emission pattern: it was much greater in the case of a nonpentagonal emission pattern than in the case of a pentagonal emission pattern. This type of current noise is considered to be due to ionic-collision-induced damage at the surface of the tip when the emission pattern is nonpentagonal.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2009-02-25
著者
-
Okai Makoto
Materials Research Laboratory Hitachi Ltd.
-
Tokumoto Hiroshi
Nanotechnology Research Center Research Institute For Electronic Science Hokkaido University
-
Fujieda Tadashi
Materials Research Laboratory Hitachi Ltd.
-
Okai Makoto
Materials Research Laboratory, Hitachi, Ltd., Hitachi, Ibaraki 319-1292, Japan
-
Tokumoto Hiroshi
Nanotechnology Research Center, Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
-
Fujieda Tadashi
Materials Research Laboratory, Hitachi, Ltd., Hitachi, Ibaraki 319-1292, Japan
関連論文
- Study of Field Emission Characteristics of Carbon with the Scanning Atom Probe
- Behavior of Catalyst Particle at Tip of Carbon Nanotube during Field Emission
- Direct Observation of Field Emission Sites in a Single Multiwalled Carbon Nanotube by Lorenz Microscopy
- 3P-314 マイクロアレイを用いたAFMによる多数生細胞の力学計測(計測,第46回日本生物物理学会年会)
- Elasticity of Living Cells on a Microarray during the Early Stages of Adhesion Measured by Atomic Force Microscopy
- Distinct Chemical Contrast in Adhesion Force Images of Hydrophobic–Hydrophilic Patterned Surfaces Using Multiwalled Carbon Nanotube Probe Tips
- Stress Relaxation Measurement of Fibroblast Cells with Atomic Force Microscopy
- Power-Law Stress and Creep Relaxations of Single Cells Measured by Colloidal Probe Atomic Force Microscopy
- Measurement of Intramolecular Energy Dissipation and Stiffness of a Single Peptide Molecule by Magnetically Modulated Atomic Force Microscopy
- In Situ Transmission Electron Microscope Observation of Carbon Nanotubes in Electric Fields
- Energy Spread of Field Emission Electrons from Single Pentagons in Individual Multi-Walled Carbon Nanotubes
- Field Emission Stability of Individual Multi-Walled Carbon Nanotubes
- Stress Relaxation Measurement of Fibroblast Cells with Atomic Force Microscopy
- Elasticity of Living Cells on a Microarray during the Early Stages of Adhesion Measured by Atomic Force Microscopy
- Versatility of Self-Oscillation Technique with Mechanical-Acoustic Excitations for Frequency Modulation Atomic Force Microscope in Liquids
- Scanning Tunneling Microscopy Observation of Apparent Molecular Motion Induced by Polarity Change of Electric Fields
- Direct Observation of Field Emission Sites in a Single Multiwalled Carbon Nanotube by Lorenz Microscopy
- Power-Law Stress and Creep Relaxations of Single Cells Measured by Colloidal Probe Atomic Force Microscopy