Phase stability of doped carbon nanotubes

被引：15
作者：
Iwasa, Y
Fudo, H
Yatsu, Y
Mitani, T
Kataura, H
Achiba, Y
机构：
[1] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan
[2] Tokyo Metropolitan Univ, Dept Chem, Tokyo 1920397, Japan
来源：
SYNTHETIC METALS | 2001年 / 121卷 / 1-3期
关键词：
infrared and Raman spectroscopy; fullerenes and derivertives; graphite and related compounds;
D O I：
10.1016/S0379-6779(00)00746-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This report presents spectroscopic probes of intercalation processes in single walled carbon nanotubes. Before saturation doping of alkali metals (KCx, x similar to9), we found a rather stable intermediate phase KC27, where the Raman active E-2g mode shows an anomalous hardening. Considering the close correlation with the graphite intercalation compounds, we postulate that in KC,, phase, alkali ions are inserted between two tubes rather than the hollow site surrounded by three tubes.
引用
收藏
页码：1203 / 1204
页数：2
相关论文
共 7 条
  • [1] INTERCALATION COMPOUNDS OF GRAPHITE
    DRESSELHAUS, MS
    DRESSELHAUS, G
    [J]. ADVANCES IN PHYSICS, 1981, 30 (02) : 139 - 326
  • [2] DRESSELHAUS MS, 1996, SCI FULLERNEES CARBO
  • [3] Position of K atoms in doped single-walled carbon nanotube crystals
    Gao, GH
    Cagin, T
    Goddard, WA
    [J]. PHYSICAL REVIEW LETTERS, 1998, 80 (25) : 5556 - 5559
  • [4] Optical properties of single-wall carbon nanotubes
    Kataura, H
    Kumazawa, Y
    Maniwa, Y
    Umezu, I
    Suzuki, S
    Ohtsuka, Y
    Achiba, Y
    [J]. SYNTHETIC METALS, 1999, 103 (1-3) : 2555 - 2558
  • [5] Conductivity enhancement in single-walled carbon nanotube bundles doped with K and Br
    Lee, RS
    Kim, HJ
    Fischer, JE
    Thess, A
    Smalley, RE
    [J]. NATURE, 1997, 388 (6639) : 255 - 257
  • [6] Evidence for charge transfer in doped carbon nanotube bundles from Raman scattering
    Rao, AM
    Eklund, PC
    Bandow, S
    Thess, A
    Smalley, RE
    [J]. NATURE, 1997, 388 (6639) : 257 - 259
  • [7] Crystalline ropes of metallic carbon nanotubes
    Thess, A
    Lee, R
    Nikolaev, P
    Dai, HJ
    Petit, P
    Robert, J
    Xu, CH
    Lee, YH
    Kim, SG
    Rinzler, AG
    Colbert, DT
    Scuseria, GE
    Tomanek, D
    Fischer, JE
    Smalley, RE
    [J]. SCIENCE, 1996, 273 (5274) : 483 - 487
1