Rapid growth of long, vertically aligned carbon nanotubes through efficient catalyst optimization using metal film gradients

被引:87
作者
Christen, HM [1 ]
Puretzky, AA
Cui, H
Belay, K
Fleming, PH
Geohegan, DB
Lowndes, DH
机构
[1] Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA
[2] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA
[3] Florida A&M Univ, Dept Phys, Tallahassee, FL 32307 USA
关键词
D O I
10.1021/nl048856f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Pulsed laser deposited, orthogonally overlapping metal film gradients are introduced as a versatile method to optimize desired nanomaterial characteristics simultaneously as a function of catalyst composition and film thickness. Catalyst libraries generated by this method are applied here to study the growth of vertically aligned carbon nanotubes by chemical vapor deposition in acetylene from Mo/Fe/Al multilayers on Si. An Fe/Mo atomic ratio of 16:1 was discovered to be optimal for the rapid growth of nanotubes to long lengths, at rates exceeding 1 mm/hr.
引用
收藏
页码:1939 / 1942
页数:4
相关论文
共 15 条
  • [1] Cassell AM, 1999, J PHYS CHEM B, V103, P6484, DOI 10.1021/jp990957sCCC:$18.00
  • [2] Combinatorial optimization of heterogeneous catalysts used in the growth of carbon nanotubes
    Cassell, AM
    Verma, S
    Delzeit, L
    Meyyappan, M
    Han, J
    [J]. LANGMUIR, 2001, 17 (02) : 260 - 264
  • [3] Heterogeneous single-walled carbon nanotube catalyst discovery and optimization
    Chen, B
    Parker, G
    Han, J
    Meyyappan, M
    Cassell, AM
    [J]. CHEMISTRY OF MATERIALS, 2002, 14 (04) : 1891 - 1896
  • [4] CHRISTEN HM, UNPUB MEAS SCI TECHN
  • [5] Growth behavior of carbon nanotubes on multilayered metal catalyst film in chemical vapor deposition
    Cui, H
    Eres, G
    Howe, JY
    Puretkzy, A
    Varela, M
    Geohegan, DB
    Lowndes, DH
    [J]. CHEMICAL PHYSICS LETTERS, 2003, 374 (3-4) : 222 - 228
  • [6] Multiwalled carbon nanotubes by chemical vapor deposition using multilayered metal catalysts
    Delzeit, L
    Nguyen, CV
    Chen, B
    Stevens, R
    Cassell, A
    Han, J
    Meyyappan, M
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (22) : 5629 - 5635
  • [7] Multilayered metal catalysts for controlling the density of single-walled carbon nanotube growth
    Delzeit, L
    Chen, B
    Cassell, A
    Stevens, R
    Nguyen, C
    Meyyappan, M
    [J]. CHEMICAL PHYSICS LETTERS, 2001, 348 (5-6) : 368 - 374
  • [8] ELLIOTT RP, 1965, CONSTITUTION BINAR S, P669
  • [9] In situ control of the catalyst efficiency in chemical vapor deposition of vertically aligned carbon nanotubes on predeposited metal catalyst films
    Eres, G
    Puretzky, AA
    Geohegan, DB
    Cui, H
    [J]. APPLIED PHYSICS LETTERS, 2004, 84 (10) : 1759 - 1761
  • [10] In situ growth rate measurements and length control during chemical vapor deposition of vertically aligned multiwall carbon nanotubes
    Geohegan, DB
    Puretzky, AA
    Ivanov, IN
    Jesse, S
    Eres, G
    Howe, JY
    [J]. APPLIED PHYSICS LETTERS, 2003, 83 (09) : 1851 - 1853