Self-Assembly of Ordered Epitaxial Nanostructures on Polygonal Nanowires

We study the self-assembly of ordered nanostructures, that is, nanorings (NRs) and quantum dots (QDs), epitaxially grown on a polygonal cross-section nanowire (PCS-NW) using both theoretical and phase-field modeling. Our studies show that, by increasing the PCS-NW size, transitions from ordered NRs...

Full description

Saved in:
Bibliographic Details
Published in:Nano letters 2013-02, Vol.13 (2), p.538-542
Main Authors: Lu, Liang-Xing, Bharathi, M. S, Zhang, Yong-Wei
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Cross sections
Cross-disciplinary physics: materials science
rheology
Epitaxial growth
Epitaxy
Exact sciences and technology
Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties
Materials science
Mathematical models
Methods of nanofabrication
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
Nanostructure
Nanostructures - chemistry
Nanowires
Physics
Polymers - chemistry
Quantum Dots
Quantum wires
Ridges
Self assembly
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study the self-assembly of ordered nanostructures, that is, nanorings (NRs) and quantum dots (QDs), epitaxially grown on a polygonal cross-section nanowire (PCS-NW) using both theoretical and phase-field modeling. Our studies show that, by increasing the PCS-NW size, transitions from ordered NRs to ordered QDs on facets and further to ordered QDs on ridges occur. The predicted morphologies and their transitions are in excellent agreement with existing experiments. Our study suggests a novel approach to fabricate ordered nanostructures on nanowires.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl3040543