Behaviors of field emitters under pulsed voltages

doi:10.1007/s11431-015-0778-0

CORC > 北京大学 > 信息科学技术学院

	Behaviors of field emitters under pulsed voltages
	Yang Jin ; Zhang GengMin
刊名	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
	2016
关键词	field emission pulsed voltage charging current attenuation waveform distortion EMISSION PROPERTIES CARBON NANOTUBES NANONEEDLE ARRAYS WORK FUNCTION TEMPERATURE CATHODE FABRICATION DEPENDENCE
DOI	10.1007/s11431-015-0778-0
英文摘要	In this paper we described our study of the behaviors of field emitters driven by square-wave voltages. We observed phenomena under pulsed voltages that generally do not manifest themselves under direct-current voltages. We interpreted these phenomena with the cathode and anode combined treated as equivalent to a resistor and a condenser in series connection. First, because of the delay caused by the charging process of the condenser, the waveform of the voltage across the cathode-anode gap was remarkably distorted. Second, the resistor led to considerable attenuation in field emission, which was clearly observable within each pulse and became more dramatic with increasing repetition frequency of the pulses. Furthermore, the field emission currents under direct-current voltages were lower than those under pulsed voltages. This disparity is attributed to rising resistance in the circuit with rising temperature. We also discussed the restrictions that the waveform distortion and current attenuation could impose on potential field emitter applications.; Ministry of Science and Technology of China [2013CB933604]; SCI(E); 中国科学引文数据库(CSCD); ARTICLE; zgmin@pku.edu.cn; 11; 1777-1784; 59
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/457909]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Yang Jin,Zhang GengMin. Behaviors of field emitters under pulsed voltages[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2016.
APA	Yang Jin,&Zhang GengMin.(2016).Behaviors of field emitters under pulsed voltages.SCIENCE CHINA-TECHNOLOGICAL SCIENCES.
MLA	Yang Jin,et al."Behaviors of field emitters under pulsed voltages".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2016).