Helium detection via field ionization from carbon nanotubes

被引：59
作者：
Riley, DJ
Mann, M
MacLaren, DA
Dastoor, PC
Allison, W
Teo, KBK
Amaratunga, GAJ
Milne, W
机构：
[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[2] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England
来源：
NANO LETTERS | 2003年 / 3卷 / 10期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1021/nl034460c
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel, high-efficiency detector for neutral atoms such as helium is described. The design uses multiwalled carbon nanotubes (MWNTs), grown by chemical vapor deposition on a steel support wire. Application of a positive bias to the MWNTs generates electric fields sufficient to field-ionize passing gas-phase atoms. Under ultrahigh vacuum conditions, the detector was demonstrated to be capable of ionising and detecting even helium gas, the element with the highest ionization potential.
引用
收藏
页码：1455 / 1458
页数：4
相关论文
共 22 条
  • [1] [Anonymous], 1961, FIELD EMISSION FIELD
  • [2] Degradation and failure of carbon nanotube field emitters
    Bonard, JM
    Klinke, C
    Dean, KA
    Coll, BF
    [J]. PHYSICAL REVIEW B, 2003, 67 (11) : 10
  • [3] Carbon nanotube films as electron field emitters
    Bonard, JM
    Croci, M
    Klinke, C
    Kurt, R
    Noury, O
    Weiss, N
    [J]. CARBON, 2002, 40 (10) : 1715 - 1728
  • [4] Field emission from carbon nanotubes:: perspectives for applications and clues to the emission mechanism
    Bonard, JM
    Salvetat, JP
    Stöckli, T
    Forró, L
    Châtelain, A
    [J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1999, 69 (03): : 245 - 254
  • [5] Field emission of individual carbon nanotubes in the scanning electron microscope
    Bonard, JM
    Dean, KA
    Coll, BF
    Klinke, C
    [J]. PHYSICAL REVIEW LETTERS, 2002, 89 (19) : 1 - 197602
  • [6] Micrometer-sized nozzles and skimmers for the production of supersonic He atom beams
    Braun, J
    Day, PK
    Toennies, JP
    Witte, G
    Neher, E
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1997, 68 (08) : 3001 - 3009
  • [7] High brightness electron beam from a multi-walled carbon nanotube
    de Jonge, N
    Lamy, Y
    Schoots, K
    Oosterkamp, TH
    [J]. NATURE, 2002, 420 (6914) : 393 - 395
  • [8] The environmental stability of field emission from single-walled carbon nanotubes
    Dean, KA
    Chalamala, BR
    [J]. APPLIED PHYSICS LETTERS, 1999, 75 (19) : 3017 - 3019
  • [9] A CARBON NANOTUBE FIELD-EMISSION ELECTRON SOURCE
    DEHEER, WA
    CHATELAIN, A
    UGARTE, D
    [J]. SCIENCE, 1995, 270 (5239) : 1179 - 1180
  • [10] Towards realization of an atomic de Broglie microscope:: Helium atom focusing using fresnel zone plates
    Doak, RB
    Grisenti, RE
    Rehbein, S
    Schmahl, G
    Toennies, JP
    Wöll, C
    [J]. PHYSICAL REVIEW LETTERS, 1999, 83 (21) : 4229 - 4232
123