Thermal Conductivity of Ge and Ge–Si Core–Shell Nanowires in the Phonon Confinement Regime

Heterostructure core–shell semiconductor nanowires (NWs) have attracted tremendous interest recently due to their remarkable properties and potential applications as building blocks for nanodevices. Among their unique traits, thermal properties would play a significant role in thermal management of...

Full description

Saved in:
Bibliographic Details
Published in:Nano letters 2011-12, Vol.11 (12), p.5507-5513
Main Authors: Wingert, Matthew C, Chen, Zack C. Y, Dechaumphai, Edward, Moon, Jaeyun, Kim, Ji-Hun, Xiang, Jie, Chen, Renkun
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Confinement
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Germanium
Heat transfer
Heterostructures
Lattice dynamics
Materials science
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
Nanostructure
Nanowires
Phonons
Phonons in low-dimensional structures and small particles
Physics
Quantum wires
Semiconductors
Thermal conductivity
Thermal properties of condensed matter
Thermal properties of small particles, nanocrystals, nanotubes
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:Heterostructure core–shell semiconductor nanowires (NWs) have attracted tremendous interest recently due to their remarkable properties and potential applications as building blocks for nanodevices. Among their unique traits, thermal properties would play a significant role in thermal management of future heterostructure NW-based nanoelectronics, nanophotonics, and energy conversion devices, yet have been explored much less than others. Similar to their electronic counterparts, phonon spectrum and thermal transport properties could be modified by confinement effects and the acoustic mismatch at the core–shell interface in small diameter NWs (
ISSN:1530-6984
1530-6992
DOI:10.1021/nl203356h