人工晶体学报2012，Vol.41Issue(4)：1102-1106,5.
放电过程对碳纳米管膜场发射性能的影响
Effect of Discharge Process on Field Emission Properties of Carbon Nanotubes Film
樊志琴 1李瑞 1蔡根旺 1张君德 1王建星1
作者信息
摘要
Abstract
Carbon nanotubes (CNTs) films were synthesized from methane and hydrogen gas mixture direcdy on stainless steel plates by microwave plasma chemical vapor deposition (MPCVD).The effect of arc discharge process on the field emission stability of carbon nanotubes films was studied.The ratio of the sp2 over sp3 carbon-carbon bond of CNTs film by XPS and Raman spectra was analyzed to study field emission properties of the films.The results show that field emission property degraded while the sp2 carbon-carbon bond was decreased due to arc discharge.It could be considered that the electrons were mainly emitted from sp2 bonded carbon,so the decreasing of sp2 fraction of the film meant the decreasing of emission site density,and resulted in the degradation behavior of electron emission.关键词
碳纳米管/MPCVD/场发射/拉曼光谱Key words
carbon nanotube/MPCVD/field emission/Raman spectroscopy分类
数理科学引用本文复制引用
樊志琴,李瑞,蔡根旺,张君德,王建星..放电过程对碳纳米管膜场发射性能的影响[J].人工晶体学报,2012,41(4):1102-1106,5.
