Abstract
In this paper, we gain insight into the design and optimization of plasmonic (metallic) tips prepared with dc-pulsed voltage electrochemical etching gold wires, provided that, a duty cycle is self-tuned. Physically, it means that etching electrolyte attacks the gold wire equally for all pulse lengths, regardless of its surface shape. Etchant effect on the reproducibility of a curvature radius of the tip apex is demonstrated. It means that the gold conical tips can be designed chemically with a choice of proper etchant electrolyte. It is suggested to use a microtomed binary polymer blend consisting of polyamide and low density polyethylene, as a calibration grating, for optimizing and standardizing tip-enhanced Raman scattering performance.
| Original language | English |
|---|---|
| Pages (from-to) | 139-143 |
| Number of pages | 5 |
| Journal | Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy |
| Volume | 171 |
| DOIs | |
| Publication status | Published - Jan 15 2017 |
Fingerprint
Keywords
- Calibration grating
- Electrochemical etching
- Enhanced optical spectroscopy
- Etchant effect
- Gold tip
- Optical antenna
- Optical near-field
- Polyethelene
- Polyimide
- Surface plasmon
- Tip-enhanced Raman scattering
ASJC Scopus subject areas
- Analytical Chemistry
- Atomic and Molecular Physics, and Optics
- Instrumentation
- Spectroscopy
Cite this
Etchant-based design of gold tip apexes for plasmon-enhanced Raman spectromicroscopy. / Kharintsev, Sergey; Alekseev, Alexander; Loos, Joachim.
In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 171, 15.01.2017, p. 139-143.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Etchant-based design of gold tip apexes for plasmon-enhanced Raman spectromicroscopy
AU - Kharintsev, Sergey
AU - Alekseev, Alexander
AU - Loos, Joachim
PY - 2017/1/15
Y1 - 2017/1/15
N2 - In this paper, we gain insight into the design and optimization of plasmonic (metallic) tips prepared with dc-pulsed voltage electrochemical etching gold wires, provided that, a duty cycle is self-tuned. Physically, it means that etching electrolyte attacks the gold wire equally for all pulse lengths, regardless of its surface shape. Etchant effect on the reproducibility of a curvature radius of the tip apex is demonstrated. It means that the gold conical tips can be designed chemically with a choice of proper etchant electrolyte. It is suggested to use a microtomed binary polymer blend consisting of polyamide and low density polyethylene, as a calibration grating, for optimizing and standardizing tip-enhanced Raman scattering performance.
AB - In this paper, we gain insight into the design and optimization of plasmonic (metallic) tips prepared with dc-pulsed voltage electrochemical etching gold wires, provided that, a duty cycle is self-tuned. Physically, it means that etching electrolyte attacks the gold wire equally for all pulse lengths, regardless of its surface shape. Etchant effect on the reproducibility of a curvature radius of the tip apex is demonstrated. It means that the gold conical tips can be designed chemically with a choice of proper etchant electrolyte. It is suggested to use a microtomed binary polymer blend consisting of polyamide and low density polyethylene, as a calibration grating, for optimizing and standardizing tip-enhanced Raman scattering performance.
KW - Calibration grating
KW - Electrochemical etching
KW - Enhanced optical spectroscopy
KW - Etchant effect
KW - Gold tip
KW - Optical antenna
KW - Optical near-field
KW - Polyethelene
KW - Polyimide
KW - Surface plasmon
KW - Tip-enhanced Raman scattering
UR - http://www.scopus.com/inward/record.url?scp=84982719104&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84982719104&partnerID=8YFLogxK
U2 - 10.1016/j.saa.2016.07.048
DO - 10.1016/j.saa.2016.07.048
M3 - Article
VL - 171
SP - 139
EP - 143
JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
SN - 1386-1425
ER -