物理学报2011，Vol.60Issue(7)：663-668,6.
锥顶碳纳米管的结构稳定性与场致发射性能
Structural stability and field emission properties of cone-caDDed carbon nanotubes
摘要
Abstract
The structural stability and the electronic field emission properties of cone-capped carbon nanotubes have been deeply analyzed by the density functional theory. The results show that their structurs are much more stable than those of carbon nanocones and carbon nanotubes sealed with a C30hemisphere, and their electronic field emission properties are closely related to the configuration of cone apex and the magnitude of cone angle. Meanwhile, the combination property of cone1 @ （6,6） with a ridge-shaped tip and 38.9° cone angle is optimal. When it is used as a field emission source the field emission current density and the lifetime of device will be remarkably increased.关键词
锥顶碳纳米管/电子场致发射/结构稳定性/密度泛函理论Key words
cone-capped carbon nanotubes/electron field emission/structural stability/density functional theory分类
化学化工引用本文复制引用
王益军,王六定,杨敏,严诚,王小冬,席彩萍,李昭宁..锥顶碳纳米管的结构稳定性与场致发射性能[J].物理学报,2011,60(7):663-668,6.基金项目
国家自然科学基金（批准号：50771082,60776822,11075135）和陕西省教育厅科学研究计划项目（批准号：09JK807）资助的课题. （）
