Attraction of semiconductor nanowires: an in situ observation

Chen, Bin, Gao, Qiang, Chang, Li, Wang, Yanbo, Chen, Zibin, Liao, Xiaozhou, Tan, Hark Hoe, Zou, Jin, Ringer, Simon P. and Jagadish, Chennupati (2013) Attraction of semiconductor nanowires: an in situ observation. Acta Materialia, 61 19: 7166-7172. doi:10.1016/j.actamat.2013.08.020


Author Chen, Bin
Gao, Qiang
Chang, Li
Wang, Yanbo
Chen, Zibin
Liao, Xiaozhou
Tan, Hark Hoe
Zou, Jin
Ringer, Simon P.
Jagadish, Chennupati
Title Attraction of semiconductor nanowires: an in situ observation
Journal name Acta Materialia   Check publisher's open access policy
ISSN 1359-6454
1873-2453
Publication date 2013-11
Sub-type Article (original research)
DOI 10.1016/j.actamat.2013.08.020
Volume 61
Issue 19
Start page 7166
End page 7172
Total pages 7
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Collection year 2014
Language eng
Subject 2503 Ceramics and Composites
2506 Metals and Alloys
2507 Polymers and Plastics
2504 Electronic, Optical and Magnetic Materials
Abstract In situ deformation transmission electron microscopy was used to study the attraction behavior of GaAs semiconductor nanowires (NWs). The NWs demonstrated an interesting phenomenon of either head-to-head or body-to-body attraction at distances that depend on the NW diameters. The NWs with a diameter of ∼25 nm attracted at a distance of ∼25 nm, while large-diameter NWs of ∼55 nm showed no obvious attraction. The underlying mechanism governing the attraction of the NWs is proposed and discussed with a mechanistic model. The diameter dependence on the NW attraction behavior is discussed. The finding provides an understanding of the Ampère force in nanostructured materials caused by an electron-beam-induced current while technologically it provides useful hints for designing NW-based devices according to the diameter-dependent attraction behavior of NWs.
Keyword Ampère force
Attraction
Diameter dependence
Electron-beam-induced current
GaAs nanowires
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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