Field emission property of multi-walled carbon nanotubes with different carbon sources in a fluidized bed reactor
Field emission property of multi-walled carbon nanotubes with different carbon sources in a fluidized bed reactor
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不同碳源多壁碳纳米管在流化床反应器中的场发射特性
DOI：
10.1016/j.jpcs.2007.10.097
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发表时间：
2008
影响因子：
4
通讯作者：
S. Cho
中科院分区：
文献类型：
--
作者：
Sy Son Seung;Yoong Lee;D.;s.d. kim;S. Sung;S. Hong;S. Cho
在流化床反应器中采用催化化学气相沉积（CCVD）在不同反应条件（反应温度、气体环境和混合气体比例）下合成的碳纳米管（CNT）根据其管径和结晶度而具有截然不同的性能。 CNT 薄膜的宏观场发射特性已通过真空场发射系统测定，该系统使用磷光体 ITO 玻璃屏幕显示集成场发射。多壁碳纳米管 (MWCNT) 的场发射特性取决于其导电性和结构质量，例如管直径和结晶度 (ID/IG)。碳纳米管的平均直径越小，结晶度越高，场致发射性能越好。
The carbon nanotubes (CNTs) synthesized at various reaction conditions (reaction temperature, gas environment, and the ratio of mixture gas) using catalytic chemical vapor deposition (CCVD) in a fluidized bed reactor have quite different properties according to their tube diameter and crystallinity. Macroscopic field emission properties of the CNT film have been determined by a vacuum field emission system that displays the integrated field emission using a phosphor ITO-glass screen. Field emission properties of multi-walled carbon nanotubes (MWCNTs) depend on their electrical conductivity and structural quality such as the tube diameter and crystallinity (ID/IG). The smaller the mean diameter and the higher the crystallinity of the CNTs, the better the field emission properties could be achieved.