Optical properties of silver nanocube surfaces
obtained by silane immobilization

• Authors: Virginia Merk , Alexander Nerz , Sebastian Fredrich , Ulrich Gernert , Sören Selve , Janina Kneipp
• Languages of publication: EN

Abstracts

EN

Silver nanocubes were synthesized by the
polyol method and immobilized on a surface in a
simple approach using an aminopropyltriethoxysilane
(APTES). The optical and structural properties of the
polyvinylpyrrolidone (PVP) stabilized nanocubes were
investigated in solution and on glass surfaces. The SERS
enhancement factors at two excitation wavelengths
for crystal violet were compared with electric fields
arising in different nano¬particle configurations using
finite-difference time-domain simulations. They are in
agreement with the preferred face-to-face orientation
in the nanoaggregates on the surfaces. The facile
immobilization enables on-demand preparation and use
of the nanocubes in real analytical applications.

Keywords

EN

silver nanocubes; surface-enhancedRaman scattering; immobilization; aminopropyl¬triethoxy¬silane; finite difference time domain simulation

• Publisher: De Gruyter Open
• Journal: Nanospectroscopy
• Year: 2014
• Volume: 1
• Issue: 1

Dates

online

19 - 1 - 2015

received

26 - 6 - 2014

accepted

6 - 11 - 2014

Contributors

author

Virginia Merk

• Humboldt-
  Universität zu Berlin, Department of Chemistry, Brook-Taylor-Str. 2,
  12489 Berlin, Germany

author

Alexander Nerz

• Humboldt-
  Universität zu Berlin, Department of Chemistry, Brook-Taylor-Str. 2,
  12489 Berlin, Germany

author

Sebastian Fredrich

• Humboldt-
  Universität zu Berlin, Department of Chemistry, Brook-Taylor-Str. 2,
  12489 Berlin, Germany

author

Ulrich Gernert

• Technical University Berlin, ZELMI,
  Straße des 17. Juni 135, 10623 Berlin, Germany

author

Sören Selve

• Technical University Berlin, ZELMI,
  Straße des 17. Juni 135, 10623 Berlin, Germany

author

Janina Kneipp

• Humboldt-
  Universität zu Berlin, Department of Chemistry, Brook-Taylor-Str. 2,
  12489 Berlin, Germany

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Identifiers

DOI

10.2478/nansp-2014-0003