研究目的
Investigating the technique of visualization and evaluation of the emission site distribution for large area field emitters.
研究成果
The described technique of multi-channel recording and online data processing is a powerful tool for analyzing the emitting cathode structure and its relationship with macroscopic parameters. It allows for the estimation of the total emission area and the distribution of emission sites, offering great possibilities for further research of large area field emitters.
研究不足
The instability at high current levels due to insufficient ITO conductance and phosphor film quality, leading to vacuum discharges and potential damage to the luminophore.
1：Experimental Design and Method Selection:
The study utilized a computerized field emission projector to analyze the distribution pattern of emission sites on a nanocomposite emitter based on carbon nanotubes and polystyrene.
2：Sample Selection and Data Sources:
The nanocomposite was fabricated from a suspension of carbon nanotubes and polystyrene, deposited on a polished stainless steel substrate.
3：List of Experimental Equipment and Materials:
The setup included a plane-parallel construction with an ITO coated anode, a phosphor layer, and a telephoto USB-microscope for image capture.
4：Experimental Procedures and Operational Workflow:
IVC measurements were carried out in a vacuum chamber, with data recorded and processed by a special program written in LabView
5：Data Analysis Methods:
20 The analysis involved converting field emission images into gray scales to determine the emission area and brightness levels.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
