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Fabrication and characterization of homogeneous surface-enhanced Raman scattering substrates by single pulse UV-laser treatment of gold and silver films.
Langmuir. 2010 Dec 07; 26(23):18564-9.L

Abstract

The fabrication of SERS-active substrates, which offer high enhancement factors as well as spatially homogeneous distribution of the enhancement, plays an important role in the expansion of surface-enhanced Raman scattering (SERS) spectroscopy to a powerful, quantitative, and noninvasive measurement technique for analytical applications. In this paper, a novel method for the fabrication of SERS-active substrates by laser treatment of 20, 40, and 60 nm thick gold and of 40 nm thick silver films supported on quartz glass is presented. Single 308 nm UV-laser pulses were applied to melt the thin gold and silver films. During the cooling process of the noble metal, particles were formed. The particle size and density were imaged by atomic force microscopy. By varying the fluence, the size of the particles can be controlled. The enhancement factors of the nanostructures were determined by recording self-assembled monolayers of benzenethiol. The intensity of the SERS signal from benzenethiol is correlated to the mean particle size and thus to the fluence. Enhancement factors up to 10(6) with a high reproducibility were reached. Finally we have analyzed the temperature dependence of the SERS effect by recording the intensity of benzenethiol vibrations from 300 to 120 K. The temperature dependence of the SERS effect is discussed with regard to the metal properties.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Christou K
Department of Photonic Sensor Technologies, Laser-Laboratorium Göttingen e.V., Göttingen. konstantin.christou@llg-ev.de
Knorr I
No affiliation info available
Ihlemann J
No affiliation info available
Wackerbarth H
No affiliation info available
Beushausen V
No affiliation info available

MeSH

ChemistryGoldLasersMaterials TestingMetalsMicroscopy, Atomic ForceParticle SizePhenolsSilverSpectrum Analysis, RamanSulfhydryl CompoundsSurface PropertiesTemperatureUltraviolet Rays

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21043441

Citation

Christou, Konstantin, et al. "Fabrication and Characterization of Homogeneous Surface-enhanced Raman Scattering Substrates By Single Pulse UV-laser Treatment of Gold and Silver Films." Langmuir : the ACS Journal of Surfaces and Colloids, vol. 26, no. 23, 2010, pp. 18564-9.
Christou K, Knorr I, Ihlemann J, et al. Fabrication and characterization of homogeneous surface-enhanced Raman scattering substrates by single pulse UV-laser treatment of gold and silver films. Langmuir. 2010;26(23):18564-9.
Christou, K., Knorr, I., Ihlemann, J., Wackerbarth, H., & Beushausen, V. (2010). Fabrication and characterization of homogeneous surface-enhanced Raman scattering substrates by single pulse UV-laser treatment of gold and silver films. Langmuir : the ACS Journal of Surfaces and Colloids, 26(23), 18564-9. https://doi.org/10.1021/la103021g
Christou K, et al. Fabrication and Characterization of Homogeneous Surface-enhanced Raman Scattering Substrates By Single Pulse UV-laser Treatment of Gold and Silver Films. Langmuir. 2010 Dec 7;26(23):18564-9. PubMed PMID: 21043441.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fabrication and characterization of homogeneous surface-enhanced Raman scattering substrates by single pulse UV-laser treatment of gold and silver films. AU - Christou,Konstantin, AU - Knorr,Inga, AU - Ihlemann,Jürgen, AU - Wackerbarth,Hainer, AU - Beushausen,Volker, Y1 - 2010/11/02/ PY - 2010/11/4/entrez PY - 2010/11/4/pubmed PY - 2011/4/7/medline SP - 18564 EP - 9 JF - Langmuir : the ACS journal of surfaces and colloids JO - Langmuir VL - 26 IS - 23 N2 - The fabrication of SERS-active substrates, which offer high enhancement factors as well as spatially homogeneous distribution of the enhancement, plays an important role in the expansion of surface-enhanced Raman scattering (SERS) spectroscopy to a powerful, quantitative, and noninvasive measurement technique for analytical applications. In this paper, a novel method for the fabrication of SERS-active substrates by laser treatment of 20, 40, and 60 nm thick gold and of 40 nm thick silver films supported on quartz glass is presented. Single 308 nm UV-laser pulses were applied to melt the thin gold and silver films. During the cooling process of the noble metal, particles were formed. The particle size and density were imaged by atomic force microscopy. By varying the fluence, the size of the particles can be controlled. The enhancement factors of the nanostructures were determined by recording self-assembled monolayers of benzenethiol. The intensity of the SERS signal from benzenethiol is correlated to the mean particle size and thus to the fluence. Enhancement factors up to 10(6) with a high reproducibility were reached. Finally we have analyzed the temperature dependence of the SERS effect by recording the intensity of benzenethiol vibrations from 300 to 120 K. The temperature dependence of the SERS effect is discussed with regard to the metal properties. SN - 1520-5827 UR - https://www.unboundmedicine.com/medline/citation/21043441/Fabrication_and_characterization_of_homogeneous_surface_enhanced_Raman_scattering_substrates_by_single_pulse_UV_laser_treatment_of_gold_and_silver_films_ L2 - https://doi.org/10.1021/la103021g DB - PRIME DP - Unbound Medicine ER -