Micro-discharge plasma has been widely used in many fields, but the Thomson discharge theory can'... more Micro-discharge plasma has been widely used in many fields, but the Thomson discharge theory can't reasonably explain mesoscopic-scale air discharge phenomenon. In order to further explore the micro-gap air discharge characteristics and to determine the effect of field emission on micro-scale air discharge, the precision displacement plate and atomic force microscope (AFM) were used to construct the pin-plate electrode structure which can realize the micrometer distance control. The phenomena and mechanism of micro-gap discharge were investigated when the DC voltage was applied in atmosphere environment. The results show that the micro-gap discharge mechanism is very different from that between the long gap. When the gap is about 15 μm, non-uniform electric field discharge generates continuous glow discharge or intermittent spark discharge. When the gap is less than 2 μm, there is no glow discharge occurs. Fowler-Nordheim formula describes the same phenomena that breakdown voltage does not change with the gap distance, denoting that is the field emission mechanism. Cathode field emission
Micro-discharge plasma has been widely used in many fields, but the Thomson discharge theory can'... more Micro-discharge plasma has been widely used in many fields, but the Thomson discharge theory can't reasonably explain mesoscopic-scale air discharge phenomenon. In order to further explore the micro-gap air discharge characteristics and to determine the effect of field emission on micro-scale air discharge, the precision displacement plate and atomic force microscope (AFM) were used to construct the pin-plate electrode structure which can realize the micrometer distance control. The phenomena and mechanism of micro-gap discharge were investigated when the DC voltage was applied in atmosphere environment. The results show that the micro-gap discharge mechanism is very different from that between the long gap. When the gap is about 15 μm, non-uniform electric field discharge generates continuous glow discharge or intermittent spark discharge. When the gap is less than 2 μm, there is no glow discharge occurs. Fowler-Nordheim formula describes the same phenomena that breakdown voltage does not change with the gap distance, denoting that is the field emission mechanism. Cathode field emission
Micro-discharge plasma has been widely used in many fields, but the Thomson discharge theory can'... more Micro-discharge plasma has been widely used in many fields, but the Thomson discharge theory can't reasonably explain mesoscopic-scale air discharge phenomenon. In order to further explore the micro-gap air discharge characteristics and to determine the effect of field emission on micro-scale air discharge, the precision displacement plate and atomic force microscope (AFM) were used to construct the pin-plate electrode structure which can realize the micrometer distance control. The phenomena and mechanism of micro-gap discharge were investigated when the DC voltage was applied in atmosphere environment. The results show that the micro-gap discharge mechanism is very different from that between the long gap. When the gap is about 15 μm, non-uniform electric field discharge generates continuous glow discharge or intermittent spark discharge. When the gap is less than 2 μm, there is no glow discharge occurs. Fowler-Nordheim formula describes the same phenomena that breakdown voltage does not change with the gap distance, denoting that is the field emission mechanism. Cathode field emission
Micro-discharge plasma has been widely used in many fields, but the Thomson discharge theory can'... more Micro-discharge plasma has been widely used in many fields, but the Thomson discharge theory can't reasonably explain mesoscopic-scale air discharge phenomenon. In order to further explore the micro-gap air discharge characteristics and to determine the effect of field emission on micro-scale air discharge, the precision displacement plate and atomic force microscope (AFM) were used to construct the pin-plate electrode structure which can realize the micrometer distance control. The phenomena and mechanism of micro-gap discharge were investigated when the DC voltage was applied in atmosphere environment. The results show that the micro-gap discharge mechanism is very different from that between the long gap. When the gap is about 15 μm, non-uniform electric field discharge generates continuous glow discharge or intermittent spark discharge. When the gap is less than 2 μm, there is no glow discharge occurs. Fowler-Nordheim formula describes the same phenomena that breakdown voltage does not change with the gap distance, denoting that is the field emission mechanism. Cathode field emission
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