Amanda S Barnard et al 2006 Nanotechnology 17 5707 doi:10.1088/0957-4484/17/22/029
Modelling the formation of high aspect CdSe quantum wires: axial-growth versus oriented-attachment mechanisms
Amanda S Barnard1, Huifang Xu2, Xiaochun Li2, Narayan Pradhan3 and Xiaogang Peng3
Show affiliationsFollowing the recent low temperature synthesis of high quality and single crystal CdSe quantum nanowires, we have used a thermodynamic model to investigate the plausibility of axial-growth and oriented-attachment formation mechanisms. Using surface energies for clean and alkylamine-passivated CdSe surfaces reported elsewhere by Manna et al (2005 J. Phys. Chem. B 109 6183), we have compared equilibrium and metastable shapes of CdSe nanowires as a function of aspect ratio and axial orientation for different degrees of surface passivation. In general, the theoretical results support the oriented-attachment of low aspect quantum dots or nanorods, followed by coalescence to form high aspect 
quantum wires.
- PACS
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81.16.Be Chemical synthesis methods
65.80.+n Thermal properties of small particles, nanocrystals, nanotubes
68.65.La Quantum wires (patterned in quantum wells)
68.43.-h Chemisorption/physisorption: adsorbates on surfaces
- Subjects
- Dates
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Issue 22 (28 November 2006)
Received 17 August 2006, in final form 8 October 2006
Published 7 November 2006
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Modelling the formation of high aspect CdSe quantum wires: axial-growth versus oriented-attachment mechanisms
Amanda S Barnard et al 2006 Nanotechnology 17 5707
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Magnetic x-ray microdiffraction
Paul G Evans and Eric D Isaacs 2006 J. Phys. D: Appl. Phys. 39 R245
-
Unstable manifolds of a limit cycle near grazing
R Szalai and H M Osinga 2008 Nonlinearity 21 273
-
Active galactic nuclei
D E Osterbrock 1991 Rep. Prog. Phys. 54 579
-
The Source of Far-Infrared Radiation in Spiral Galaxies
Lauren V. Jones et al. 2002 The Astronomical Journal 124 2548
-
Composite fermion theory of rapidly rotating two-dimensional bosons
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-
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-
Optimal resource allocation for efficient transport on complex networks
Xiaofeng Gong et al 2008 EPL 83 28001
-
Mean encounter times for cell adhesion in hydrodynamic flow: Analytical progress by dimensional reduction
C. B. Korn and U. S. Schwarz 2008 EPL 83 28007
-
Parameter-tuning networks: Experiments and active-walk model
Xiao-Pu Han et al 2008 EPL 83 28003
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