Surface-enhanced raman scattering (SERS) of adsorbed molecules on smooth surfaces of metals and a metal oxide

Yamada, Haruka; Yamamoto, Yoriko; Tani, Noriko

doi:10.1016/0009-2614(82)83531-8

Cited by 102 publications

(44 citation statements)

References 7 publications

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“…Hayashi et al [7] have reported some evidence for SERS on small GaP particles. SERS from molecules adsorbed on surfaces of semiconductor oxides such as NiO, [8] α-Fe 2 O 3 , [9] CuO, [10] and ZnO [11] has also been reported. Recently, Song et al [12] also detected SERS signals of 4-mercaptopyridine adsorbed on the surface of TiO 2 nanofibers coated with Ag nanoparticles (NPs).…”

Section: Introductionmentioning

confidence: 96%

Improved surface‐enhanced Raman scattering properties of TiO₂ nanoparticles by Zn dopant

Yang

Ruan

et al. 2010

J Raman Spectroscopy

105

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In this paper, pure and Zn-doped TiO 2 nanoparticles (NPs) with various content of Zn were prepared by a sol-hydrothermal method and were employed as active substrates for surface-enhanced Raman scattering (SERS). On the 3% Zn-doped TiO 2 substrate, 4-mercaptobenzoic acid(4-MBA) molecules exhibit a higher SERS intensity by a factor of 6, as compared with the native enhancement of 4-MBA adsorbed on undoped TiO 2 NPs. Moreover, the higher SERS activity was still observed on the 3% Zn-doped TiO 2 NPs at temperature even up to 125 • C. These results indicate that an appropriate amount of Zn doping can improve the SERS performances of TiO 2 SERS-active substrates. The introduction of Zn dopant can enrich the surface states (defects) of TiO 2 and improve the separation efficiency of photo-generated charge carriers (electrons and holes) in TiO 2 , according to measurements of X-ray diffraction, UV-visible diffuse reflectance spectroscopy, and photoluminescence, which are responsible for the influence of Zn dopant on the improved SERS performances of TiO 2 NPs.

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Section: Introductionmentioning

confidence: 96%

Improved surface‐enhanced Raman scattering properties of TiO₂ nanoparticles by Zn dopant

Yang

Ruan

et al. 2010

J Raman Spectroscopy

105

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“…The first was by Yamada et al, 5 who reported an enhancement of the pyridine spectrum on Ni. They later expanded the research to TiO 2 as well as NiO.…”

Section: ■ Introductionmentioning

confidence: 99%

Two-Dimensional Array of Silica Particles as a SERS Substrate

2014

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We present the observation of size-dependent surface-enhanced Raman spectra (SERS) for crystal violet (CV) adsorbed on a monolayer of hexagonally closepacked silica spheres. Enhancement factors on the order of 10 4 are estimated based on the ratio of the number of CV molecules excited in solution to those on the surface of the monolayer array. The proposed enhancement mechanism is that of delocalized surface plasmon resonance over the monolayer array. Plasmon resonances of silica spheres are calculated using Mie theory for light scattering and experimentally validated with UV−vis absorption spectra. There is an excellent agreement between the observed spectrum from the monolayer arrays and a single particle calculated spectrum. This work points the way to utilize silica particles as a viable alternative to current SERS substrates as well as illustrates the importance of surface plasmon resonances from photonic crystals in the SERS of semiconductors.

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“…The first example was reported by Yamada et al. in 1983, in which an enhancement of the pyridine spectrum was observed on NiO . Later, they found a similar enhancement effect on TiO 2 .…”

Section: Sers Detection On Noble‐metal‐free Substratesmentioning

confidence: 99%

Noble‐Metal‐Free Materials for Surface‐Enhanced Raman Spectroscopy Detection

Tan

Melkersson

et al. 2016

ChemPhysChem

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Surface-enhanced Raman spectroscopy (SERS) is an attractive tool for the sensing of molecules in the fields of chemical and biochemical analysis as it enables the sensitive detection of molecular fingerprint information even at the single-molecule level. In addition to traditional coinage metals in SERS analysis, recent research on noble-metal-free materials has also yielded highly sensitive SERS activity. This Minireview presents the recent development of noble-metal-free materials as SERS substrates and their potential applications, especially semiconductors and emerging graphene-based nanostructures. Rather than providing an exhaustive review of this field, possible contributions from semiconductor substrates, characteristics of graphene enhanced Raman scattering, as well as effect factors such as surface plasmon resonance, structure and defects of the nanostructures that are considered essential for SERS activity are emphasized. The intention is to illustrate, through these examples, that the promise of noble-metal-free materials for enhancing detection sensitivity can further fuel the development of SERS-related applications.

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Surface-enhanced raman scattering (SERS) of adsorbed molecules on smooth surfaces of metals and a metal oxide

Cited by 102 publications

References 7 publications

Improved surface‐enhanced Raman scattering properties of TiO₂ nanoparticles by Zn dopant

Improved surface‐enhanced Raman scattering properties of TiO₂ nanoparticles by Zn dopant

Two-Dimensional Array of Silica Particles as a SERS Substrate

Noble‐Metal‐Free Materials for Surface‐Enhanced Raman Spectroscopy Detection

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Surface-enhanced raman scattering (SERS) of adsorbed molecules on smooth surfaces of metals and a metal oxide

Cited by 102 publications

References 7 publications

Improved surface‐enhanced Raman scattering properties of TiO2 nanoparticles by Zn dopant

Improved surface‐enhanced Raman scattering properties of TiO2 nanoparticles by Zn dopant

Two-Dimensional Array of Silica Particles as a SERS Substrate

Noble‐Metal‐Free Materials for Surface‐Enhanced Raman Spectroscopy Detection

Contact Info

Product

Resources

About

Improved surface‐enhanced Raman scattering properties of TiO₂ nanoparticles by Zn dopant

Improved surface‐enhanced Raman scattering properties of TiO₂ nanoparticles by Zn dopant