Detection of ozone gas using gold nanoislands and surface plasmon resonance

Pisarenko, Aleksey N.; Spendel, Wolfgang U.; Taylor, Richard T.; Brown, Jordan; Cox, James A.; Pacey, G.E.

doi:10.1016/j.talanta.2009.07.062

Cited by 21 publications

(14 citation statements)

References 3 publications

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“…Correspondingly, upon the adsorption of hydrogen, the LSPR band actually shows a hypsochromic shift, whereas the adsorption of ozone induces, conversely, a bathochromic shift. 14,15 Unfortunately, due to the uncertainty of many parameters used in this theory, it is impossible to calculate the absolute change in the concentration of electrons in gold nanoparticles from the Dl max value. However, the positions of bands and the relative concentrations of electrons in the metal core are related by the simple expression…”

Section: Resultsmentioning

confidence: 99%

“…In particular, it was used to study the adsorption of gases on gold nanoparticles in aqueous medium. [11][12][13][14][15] It has been shown that saturation of the hydrosol with ozone induces a reversible shift of the LSPR band to longer wavelength. This shift of the band manifests a size effect: the smaller the nanoparticle size, the greater the shift.…”

Section: Introductionmentioning

confidence: 99%

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Gold nanoparticles in aqueous solutions: influence of size and pH on hydrogen dissociative adsorption and Au(iii) ion reduction

Ершов

Abkhalimov

Solovov

et al. 2016

Phys. Chem. Chem. Phys.

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The shift of the localized surface plasmon resonance (LSPR) band of gold nanoparticles to shorter wavelengths upon saturation of the hydrosol with hydrogen is used as a tool to study the electrochemical processes on the particle surface. It is shown that dissociative adsorption of hydrogen takes place on the surface of a particle and results in the migration of a proton into the dispersion medium, while the electron remains on the nanoparticle, i.e., a hydrogen-like nanoelectrode is formed. It is shown that Au(iii) ions can be reduced on the gold nanoelectrodes. A thermodynamic scheme explaining the shift of the LSPR band is used to explain the peculiarities of the Au(iii) ion reduction. The reduction rate does not depend on the ion concentration and varies linearly with pH. The observed correlations are explained in terms of a simple model of electrochemical processes taking place on the nanoparticle as an electrode. It is shown that with an increase in the particle size, its capacity for dissociative adsorption of hydrogen decreases and the Au(iii) reduction slows down.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gold nanoparticles in aqueous solutions: influence of size and pH on hydrogen dissociative adsorption and Au(iii) ion reduction

Ершов

Abkhalimov

Solovov

et al. 2016

Phys. Chem. Chem. Phys.

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“…the Fig. 1 Absorption spectra of gold hydrosol with an average particle diameter of 7 nm: (1) initial hydrosol, (2) after 40 min bubbling of the ozone-oxygen mixture, (3)(4)(5) after evacuation of the system for 1, 2, and 8 h, respectively. The spectral region of 450-650 nm is shown in the inset.…”

Section: Resultsmentioning

confidence: 99%

“…Our previous studies 15,16 showed that the bathochromic shift of LSPR of gold nanoparticles with an average diameter of 7 nm upon hydrosol saturation with ozone was more pronounced than one registered for the larger particles. 3,4 This indicates the possible presence of a size effect in the interaction of ozone with colloidal gold.…”

Section: Introductionmentioning

confidence: 97%

Adsorption of ozone and plasmonic properties of gold hydrosol: the effect of the nanoparticle size

Ершов

Abkhalimov

Roldughin

et al. 2015

Phys. Chem. Chem. Phys.

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The impact of the size of gold nanoparticles on the magnitude of the bathochromic shift of their plasmon resonance peak upon ozone adsorption is revealed and analyzed. Namely, the plasmon band position of 7, 10, 14 and 32 nm nanoparticles shifts toward longer wavelengths by 51, 35, 23 and 9 nm respectively, i.e. the smaller the nanoparticles, the greater the shift of the band. Thus, the sensor efficiency of gold hydrosol increases with a decrease in the nanoparticle size. The shift of the Fermi level is a linear function of the inverse radius of nanoparticles. The observed alterations in the gold nanoparticle plasmonic properties and the Fermi level position are explained by a decrease in the electron density of nanoparticles caused by the electrons' partial binding by adsorbed O3 molecules. The insignificance of oxygen and nitrous oxide effects on plasmonic properties of gold hydrosol is observed.

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“…Despite their advantages, they suffer from being slow processes and are limited to relatively small area fabrication [18]. Nano sphere lithography offers a cost effective method to produce large area 2D periodic arrays of plasmonic nano structures [20,21] that are also effective SERS substrates. Alterations to fabrication methodology of nano sphere lithography allows fabrication of nano structure morphologies that include nano disks, nano rings, nano holes, and even cup-like structures [22].…”

mentioning

confidence: 99%

Cluster ion beam assisted fabrication of metallic nanostructures for plasmonic applications

Saleem

Tilakaratne

et al. 2016

Nuclear Instruments and Methods in Physics Research Section B:

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We report a high-throughput, single-step method for fabricating rippled plasmonic nanostructure arrays via self-assembly induced by oblique angle cluster ion beam irradiation of metal surfaces. This approach does not require lithographic or chemical processes and has the prominent advantage of possible large surface area coverage and applicability to different starting materials. The polarization dependent plasmonic property of the gold nano-ripple is due to their one dimension structure. The localized plasmon resonance frequency of synthesized nano-ripple arrays is tunable by changing nano-ripple dimensions that can be engineered by changing the cluster ion beam irradiation parameters. In this specific case presented, using 30keV Ar-gas cluster ion beam, we fabricate gold nano-ripple arrays that show localized plasmon resonance in the visible range through near IR range, tunable by varying cluster ion irradiation fluence.

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Detection of ozone gas using gold nanoislands and surface plasmon resonance

Cited by 21 publications

References 3 publications

Gold nanoparticles in aqueous solutions: influence of size and pH on hydrogen dissociative adsorption and Au(iii) ion reduction

Gold nanoparticles in aqueous solutions: influence of size and pH on hydrogen dissociative adsorption and Au(iii) ion reduction

Adsorption of ozone and plasmonic properties of gold hydrosol: the effect of the nanoparticle size

Cluster ion beam assisted fabrication of metallic nanostructures for plasmonic applications

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