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Ground State Depletion Nanoscopy Resolves Semiconductor Nanowire Barcode Segments at Room Temperature

Oracz, Joanna; Adolfsson, Karl LU ; Westphal, Volker; Radzewicz, Czesław; Borgström, Magnus T. LU ; Sahl, Steffen J.; Prinz, Christelle N. LU and Hell, Stefan W. (2017) In Nano Letters 17(4). p.2652-2659
Abstract

Nanowires hold great promise as tools for probing and interacting with various molecular and biological systems. Their unique geometrical properties (typically <100 nm in diameter and a few micrometers in length) enable minimally invasive interactions with living cells, so that electrical signals or forces can be monitored. All such experiments require in situ high-resolution imaging to provide context. While there is a clear need to extend visualization capabilities to the nanoscale, no suitable super-resolution far-field photoluminescence microscopy of extended semiconductor emitters has been described. Here, we report that ground state depletion (GSD) nanoscopy resolves heterostructured semiconductor nanowires formed by... (More)

Nanowires hold great promise as tools for probing and interacting with various molecular and biological systems. Their unique geometrical properties (typically <100 nm in diameter and a few micrometers in length) enable minimally invasive interactions with living cells, so that electrical signals or forces can be monitored. All such experiments require in situ high-resolution imaging to provide context. While there is a clear need to extend visualization capabilities to the nanoscale, no suitable super-resolution far-field photoluminescence microscopy of extended semiconductor emitters has been described. Here, we report that ground state depletion (GSD) nanoscopy resolves heterostructured semiconductor nanowires formed by alternating GaP/GaInP segments (“barcodes”) at a 5-fold resolution enhancement over confocal imaging. We quantify the resolution and contrast dependence on the dimensions of GaInP photoluminescence segments and illustrate the effects by imaging different nanowire barcode geometries. The far-red excitation wavelength (∼700 nm) and low excitation power (∼3 mW) make GSD nanoscopy attractive for imaging semiconductor structures in biological applications.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
microscopy, Nanowires, photoluminescence, semiconductor heterostructures, super-resolution imaging
in
Nano Letters
volume
17
issue
4
pages
8 pages
publisher
The American Chemical Society
external identifiers
  • scopus:85017473823
  • wos:000399354500079
ISSN
1530-6984
DOI
10.1021/acs.nanolett.7b00468
language
English
LU publication?
yes
id
a1d3e76a-3cba-496d-9f8a-0edbbbaf6537
date added to LUP
2017-05-08 12:06:43
date last changed
2017-12-10 05:08:09
@article{a1d3e76a-3cba-496d-9f8a-0edbbbaf6537,
  abstract     = {<p>Nanowires hold great promise as tools for probing and interacting with various molecular and biological systems. Their unique geometrical properties (typically &lt;100 nm in diameter and a few micrometers in length) enable minimally invasive interactions with living cells, so that electrical signals or forces can be monitored. All such experiments require in situ high-resolution imaging to provide context. While there is a clear need to extend visualization capabilities to the nanoscale, no suitable super-resolution far-field photoluminescence microscopy of extended semiconductor emitters has been described. Here, we report that ground state depletion (GSD) nanoscopy resolves heterostructured semiconductor nanowires formed by alternating GaP/GaInP segments (“barcodes”) at a 5-fold resolution enhancement over confocal imaging. We quantify the resolution and contrast dependence on the dimensions of GaInP photoluminescence segments and illustrate the effects by imaging different nanowire barcode geometries. The far-red excitation wavelength (∼700 nm) and low excitation power (∼3 mW) make GSD nanoscopy attractive for imaging semiconductor structures in biological applications.</p>},
  author       = {Oracz, Joanna and Adolfsson, Karl and Westphal, Volker and Radzewicz, Czesław and Borgström, Magnus T. and Sahl, Steffen J. and Prinz, Christelle N. and Hell, Stefan W.},
  issn         = {1530-6984},
  keyword      = {microscopy,Nanowires,photoluminescence,semiconductor heterostructures,super-resolution imaging},
  language     = {eng},
  month        = {04},
  number       = {4},
  pages        = {2652--2659},
  publisher    = {The American Chemical Society},
  series       = {Nano Letters},
  title        = {Ground State Depletion Nanoscopy Resolves Semiconductor Nanowire Barcode Segments at Room Temperature},
  url          = {http://dx.doi.org/10.1021/acs.nanolett.7b00468},
  volume       = {17},
  year         = {2017},
}