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author:

Li, M.L. (Li, M.L..) [1] | Leung, S.L. (Leung, S.L..) [2] | Qu, Y.L. (Qu, Y.L..) [3] | Dong, Z.L. (Dong, Z.L..) [4] | Li, W.J. (Li, W.J..) [5]

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Scopus

Abstract:

This paper describes the assembly of 2 nm gold nanoparticles between micro-fabricated planar electrodes by using dielectrophoresis (DEP). The optimal conditions for effectively dieletrophoretic manipulation have been established through theoretical analysis and experimental validation. In the theoretical analysis, the effect of Brownian motion was taken into consideration, as well as the electrothermal flow and the AC electroosmosis flow. For effective manipulation of nanoparticles using DEP, proper high electric field strength is desired to give rise to dominate DEP effect, since the higher electric field strength increases the Joule heating and the lower strength reduces the DEP force. The current results indicate that the input voltage of 16Vp-p, 150 kHz leads to effective assembly of 2 nm gold nanoparticles. Our study proved that the DEP is capable of consistently assembling gold nanoparticles down to 2 nm in diameter with micro-fabricated electrodes, which was thought to be extremely difficult in the past. ©2010 IEEE.

Keyword:

Dielectrophoresis; Gold nanoparticles; Nano-devices; Nanoassembly

Community:

  • [ 1 ] [Li, M.L.]State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, China
  • [ 2 ] [Li, M.L.]College of Mechanical Engineering, Fuzhou University, China
  • [ 3 ] [Li, M.L.]Graduate University, Chinese Academy of Sciences, China
  • [ 4 ] [Leung, S.L.]State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, China
  • [ 5 ] [Leung, S.L.]University of Arizona, United States
  • [ 6 ] [Qu, Y.L.]State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, China
  • [ 7 ] [Dong, Z.L.]State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, China
  • [ 8 ] [Li, W.J.]State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, China
  • [ 9 ] [Li, W.J.]Chinese University of Hong Kong, Hong Kong

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Source :

Micro Engineered and Molecular Systems, NEMS 2010

Year: 2010

Page: 932-936

Language: English

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SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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