Synthesis of FeCo nanoparticles by pulsed laser deposition in a diffusion cloud chamber

被引：36
作者：
Ong, P. L. [2 ]
Mahmood, S. [1 ]
Zhang, T. [1 ]
Lin, J. J. [1 ]
Ramanujan, R. V. [2 ]
Lee, P. [1 ]
Rawat, R. S. [1 ]
机构：
[1] Nanyang Technol Univ, Natl Inst Educ, Singapore 637616, Singapore
[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
来源：
APPLIED SURFACE SCIENCE | 2008年 / 254卷 / 07期
关键词：
nanoparticles; FeCo; pulsed laser deposition; diffusion cloud chamber;
D O I：
10.1016/j.apsusc.2007.07.186
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Magnetic FeCo nanoparticles were successfully synthesized in a diffusion cloud chamber setup within pulsed laser deposition (PLD) equipment. The variation of morphology and size of FeCo nanoparticles with the number of laser pulses, ambient gas pressure and temperature gradient was studied. It was observed that the morphology of the nanoparticles changes from "cloud-like" fractal clusters to particle chains; average particle size increased at higher argon gas pressure. Increasing the temperature gradient considerably reduced the agglomeration of the nanoparticles. Nanoparticles deposited using the diffusion cloud chamber are found to be crystalline. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：1909 / 1914
页数：6
相关论文
共 24 条
  • [1] Functionalisation of magnetic nanoparticles for applications in biomedicine
    Berry, CC
    Curtis, ASG
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2003, 36 (13) : R198 - R206
  • [2] Brinker C.J., 1990, PHYS CHEM SOL GEL PR
  • [3] MAGNETIC-PROPERTIES OF MICROEMULSION SYNTHESIZED COBALT FINE PARTICLES
    CHEN, JP
    LEE, KM
    SORENSEN, CM
    KLABUNDE, KJ
    HADJIPANAYIS, GC
    [J]. JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) : 5876 - 5878
  • [4] Biological sensors based on Brownian relaxation of magnetic nanoparticles
    Chung, SH
    Hoffmann, A
    Bader, SD
    Liu, C
    Kay, B
    Makowski, L
    Chen, L
    [J]. APPLIED PHYSICS LETTERS, 2004, 85 (14) : 2971 - 2973
  • [5] Magnetic properties of ball milled nanocrystalline Ni and Fe
    Daroczi, L
    Beke, DL
    Posgay, G
    KisVarga, M
    [J]. NANOSTRUCTURED MATERIALS, 1995, 6 (5-8): : 981 - 984
  • [6] Multimillimetre-large superlattices of air-stable iron-cobalt nanoparticles
    Desvaux, C
    Amiens, C
    Fejes, P
    Renaud, P
    Respaud, M
    Lecante, P
    Snoeck, E
    Chaudret, B
    [J]. NATURE MATERIALS, 2005, 4 (10) : 750 - 753
  • [7] Vapor phase growth and assembly of metallic, intermetallic, carbon, and silicon nanoparticle filaments
    El-Shall, MS
    Abdelsayed, V
    Pithawalla, YB
    Alsharaeh, E
    Deevi, SC
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (13) : 2882 - 2886
  • [8] Synthesis and characterization of nanoscale zinc oxide particles .1. Laser vaporization condensation technique
    ElShall, MS
    Graiver, D
    Pernisz, U
    Baraton, MI
    [J]. NANOSTRUCTURED MATERIALS, 1995, 6 (1-4): : 297 - 300
  • [9] ELSHALL MS, 1994, J PHYS CHEM-US, V98, P12
  • [10] Effect of deposition parameters on morphology and size of FeCo nanoparticles synthesized by pulsed laser ablation deposition
    Happy
    Mohanty, SR
    Lee, P
    Tan, TL
    Springham, SV
    Patran, A
    Ramanujan, RV
    Rawat, RS
    [J]. APPLIED SURFACE SCIENCE, 2006, 252 (08) : 2806 - 2816
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