研究目的
To investigate the influence of residual gas pressure on the characteristics and lifetime of black-silicon field emitter arrays in a high voltage triode setup.
研究成果
The study demonstrates a clear influence of adsorbates on the characteristics of a field emitter array in a high voltage triode setup, showing a decrease in emission current with rising pressure. The initial characteristics can be restored by heating, significantly extending the emitter's lifetime. This suggests that adsorbate management is crucial for the long-term performance of field emitter arrays in such setups.
研究不足
The study is limited to the effects of residual gas pressure on field emitter arrays in a high voltage triode setup. The regeneration procedure's effectiveness is dependent on the heating temperature and may not fully remove all adsorbates.
1：Experimental Design and Method Selection:
The study involves characterizing the I-V-characteristics of n-type black-silicon field emitter arrays under varying residual gas pressures and analyzing the effects of adsorbates on emission current.
2：Sample Selection and Data Sources:
The samples used are n-type black-silicon field emitter arrays doped with phosphorus. Data is collected from measurements in a vacuum system with regulated residual gas pressure.
3：List of Experimental Equipment and Materials:
The setup includes a vacuum system, extraction grid, mica spacer, copper anode, and silicon drift detector for x-ray measurement.
4：Experimental Procedures and Operational Workflow:
The FEAs are conditioned at different pressure levels, and their characteristics are measured. Regeneration sweeps are performed at 110 °C to restore initial characteristics.
5：Data Analysis Methods:
The emission current model is used to analyze the data, fitting parameters like work function and charging voltage to the characteristics at elevated pressure 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
