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Spatially resolved Hall effect measurement in a single semiconductor nanowire

Storm, Kristian LU ; Halvardsson, Filip; Heurlin, Magnus LU ; Lindgren, David LU ; Gustafsson, Anders LU ; Wu, Phillip LU ; Monemar, Bo LU and Samuelson, Lars LU (2012) In Nature Nanotechnology 7(11). p.718-722
Abstract
Efficient light-emitting diodes and photovoltaic energy-harvesting devices are expected to play an important role in the continued efforts towards sustainable global power consumption. Semiconductor nanowires are promising candidates as the active components of both light-emitting diodes and photovoltaic cells, primarily due to the added freedom in device design offered by the nanowire geometry. However, for nanowire-based components to move past the proof-of-concept stage and be implemented in production-grade devices, it is necessary to precisely quantify and control fundamental material properties such as doping and carrier mobility. Unfortunately, the nanoscale geometry that makes nanowires interesting for applications also makes them... (More)
Efficient light-emitting diodes and photovoltaic energy-harvesting devices are expected to play an important role in the continued efforts towards sustainable global power consumption. Semiconductor nanowires are promising candidates as the active components of both light-emitting diodes and photovoltaic cells, primarily due to the added freedom in device design offered by the nanowire geometry. However, for nanowire-based components to move past the proof-of-concept stage and be implemented in production-grade devices, it is necessary to precisely quantify and control fundamental material properties such as doping and carrier mobility. Unfortunately, the nanoscale geometry that makes nanowires interesting for applications also makes them inherently difficult to characterize. Here, we report a method to carry out Hall measurements on single core-shell nanowires. Our technique allows spatially resolved and quantitative determination of the carrier concentration and mobility of the nanowire shell. As Hall measurements have previously been completely unavailable for nanowires, the experimental platform presented here should facilitate the implementation of nanowires in advanced practical devices. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nature Nanotechnology
volume
7
issue
11
pages
718 - 722
publisher
Nature Publishing Group
external identifiers
  • wos:000310791900010
  • pmid:23103932
  • scopus:84869089839
ISSN
1748-3395
DOI
10.1038/nnano.2012.190
language
English
LU publication?
yes
id
7f6b8b7c-d83d-49c7-b742-e27a20c39e31 (old id 3160295)
date added to LUP
2012-12-14 19:39:03
date last changed
2017-10-22 03:29:58
@article{7f6b8b7c-d83d-49c7-b742-e27a20c39e31,
  abstract     = {Efficient light-emitting diodes and photovoltaic energy-harvesting devices are expected to play an important role in the continued efforts towards sustainable global power consumption. Semiconductor nanowires are promising candidates as the active components of both light-emitting diodes and photovoltaic cells, primarily due to the added freedom in device design offered by the nanowire geometry. However, for nanowire-based components to move past the proof-of-concept stage and be implemented in production-grade devices, it is necessary to precisely quantify and control fundamental material properties such as doping and carrier mobility. Unfortunately, the nanoscale geometry that makes nanowires interesting for applications also makes them inherently difficult to characterize. Here, we report a method to carry out Hall measurements on single core-shell nanowires. Our technique allows spatially resolved and quantitative determination of the carrier concentration and mobility of the nanowire shell. As Hall measurements have previously been completely unavailable for nanowires, the experimental platform presented here should facilitate the implementation of nanowires in advanced practical devices.},
  author       = {Storm, Kristian and Halvardsson, Filip and Heurlin, Magnus and Lindgren, David and Gustafsson, Anders and Wu, Phillip and Monemar, Bo and Samuelson, Lars},
  issn         = {1748-3395},
  language     = {eng},
  number       = {11},
  pages        = {718--722},
  publisher    = {Nature Publishing Group},
  series       = {Nature Nanotechnology},
  title        = {Spatially resolved Hall effect measurement in a single semiconductor nanowire},
  url          = {http://dx.doi.org/10.1038/nnano.2012.190},
  volume       = {7},
  year         = {2012},
}