Improved field emission properties of carbon nanotubes grown on stainless steel substrate and its application in ionization gauge
文献类型：期刊论文
| 作者 | Li, DT; Cheng, YJ; Wang, YJ; Zhang, HZ; Dong, CK; Li, D(李达) |
| 刊名 | APPLIED SURFACE SCIENCE
 |
| 出版日期 | 2016 |
| 卷号 | 365 |
| 英文摘要 | Vertically aligned carbon nanotube (CNT) arrays were fabricated by chemical vapor deposition (CVD) technique on different substrates. Microstructures and field emission characteristics of the as-grown CNT arrays were investigated systematically, and its application in ionization gauge was also evaluated preliminarily. The results indicate that the as-grown CNT arrays are vertically well-aligned relating to the substrate surfaces, but the CNTs grown on stainless steel substrate are longer and more crystalline than the ones grown on silicon wafer substrate. The field emission behaviors of the as-grown CNT arrays are strongly dependent upon substrate properties. Namely, the CNT array grown on stainless steel substrate has better field emission properties, including lower turn on and threshold fields, better emission stability and repeatability, compared with the one grown on silicon wafer substrate. The superior field emission properties of the CNT array grown on stainless steel substrate are mainly attributed to low contact resistance, high thermal conductivity, good adhesion strength, etc. In addition, the metrological behaviors of ionization gauge with the CNT array grown on stainless steel substrate as an electron source were investigated, and this novel cathode ionization gauge extends the lower limit of linear pressure measurement to 10(-8) Pa, which is one order of magnitude lower than the result reported for the same of gauge with CNT cathode. (C) 2016 Elsevier B.V. All rights reserved. |
| 关键词[WOS] | CHEMICAL-VAPOR-DEPOSITION ; RAMAN-SPECTROSCOPY ; COLD-CATHODE ; ARRAYS ; EMITTERS ; SURFACE ; FABRICATION ; MECHANISM ; UNIFORM ; FOREST |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000369960300002 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/4816]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_先进材料研究部_李清文团队 |
| 推荐引用方式 GB/T 7714 | Li, DT,Cheng, YJ,Wang, YJ,et al. Improved field emission properties of carbon nanotubes grown on stainless steel substrate and its application in ionization gauge[J]. APPLIED SURFACE SCIENCE,2016,365. |
| APA | Li, DT,Cheng, YJ,Wang, YJ,Zhang, HZ,Dong, CK,&Li, D.(2016).Improved field emission properties of carbon nanotubes grown on stainless steel substrate and its application in ionization gauge.APPLIED SURFACE SCIENCE,365. |
| MLA | Li, DT,et al."Improved field emission properties of carbon nanotubes grown on stainless steel substrate and its application in ionization gauge".APPLIED SURFACE SCIENCE 365(2016). |
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