Stopping of energetic ions in carbon nanotubes

被引:26
作者
Pomoell, J [1 ]
Krasheninnikov, AV [1 ]
Nordlund, K [1 ]
Keinonen, J [1 ]
机构
[1] Univ Helsinki, Accelerator Lab, FIN-00014 Helsinki, Finland
关键词
ion irradiation; ion implantation; carbon nanotubes; nanoelectronics;
D O I
10.1016/S0168-583X(03)00703-1
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Making use of empirical potential molecular dynamics, we simulated the bombardment of single-walled carbon nanotubes with various ions. We calculated the irradiation-induced damage which proved to be higher for heavy ions than for light ones due to higher values of the cross-section for the defect production in a nanotube. We demonstrated that chemical aspects of ion-nanotube interactions and finite temperatures are of minor importance when energetic ions penetrate through nanotubes. We finally estimated the ability of nanotubes to stop energetic ions. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:18 / 21
页数:4
相关论文
共 15 条
[1]  
Allen M. P., 1989, COMPUTER SIMULATION
[2]   MOLECULAR-DYNAMICS WITH COUPLING TO AN EXTERNAL BATH [J].
BERENDSEN, HJC ;
POSTMA, JPM ;
VANGUNSTEREN, WF ;
DINOLA, A ;
HAAK, JR .
JOURNAL OF CHEMICAL PHYSICS, 1984, 81 (08) :3684-3690
[3]   EMPIRICAL POTENTIAL FOR HYDROCARBONS FOR USE IN SIMULATING THE CHEMICAL VAPOR-DEPOSITION OF DIAMOND FILMS [J].
BRENNER, DW .
PHYSICAL REVIEW B, 1990, 42 (15) :9458-9471
[4]  
Downey DF, 1997, SOLID STATE TECHNOL, V40, P71
[5]   Formation of ion-irradiation-induced atomic-scale defects on walls of carbon nanotubes -: art. no. 245405 [J].
Krasheninnikov, AV ;
Nordlund, K ;
Sirviö, M ;
Salonen, E ;
Keinonen, J .
PHYSICAL REVIEW B, 2001, 63 (24)
[6]   Carbon nanotubes as masks against ion irradiation: An insight from atomistic simulations [J].
Krasheninnikov, AV ;
Nordlund, K ;
Keinonen, J .
APPLIED PHYSICS LETTERS, 2002, 81 (06) :1101-1103
[7]   Production of defects in supported carbon nanotubes under ion irradiation [J].
Krasheninnikov, AV ;
Nordlund, K ;
Keinonen, J .
PHYSICAL REVIEW B, 2002, 65 (16) :1-8
[8]   A combined computational and experimental study of ion-beam modification of carbon nanotube bundles [J].
Ni, B ;
Andrews, R ;
Jacques, D ;
Qian, D ;
Wijesundara, MBJ ;
Choi, YS ;
Hanley, L ;
Sinnott, SB .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (51) :12719-12725
[9]   Repulsive interatomic potentials calculated using Hartree-Fock and density-functional theory methods [J].
Nordlund, K ;
Runeberg, N ;
Sundholm, D .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1997, 132 (01) :45-54
[10]   Formation of ion irradiation induced small-scale defects on graphite surfaces [J].
Nordlund, K ;
Keinonen, J ;
Mattila, T .
PHYSICAL REVIEW LETTERS, 1996, 77 (04) :699-702