Plasmonic resonance of Ag nanoclusters diffused in soda-lime glasses

Kumar, Promod; Mathpal, Mohan Chandra; Tripathi, Anand Kumar; Prakash, Jai; Agarwal, Arvind; Ahmad, Muhammad Qadir; Swart, H.C.

doi:10.1039/c4cp05679e

Cited by 72 publications

(45 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 4b displays the metallic Ag 3d photoelectron peaks3334. The relative amount of Ag and nature of Ag 3d photoelectron peaks remained similar before and after photoelectrolysis at −1.1 V under 222 nm irradiation, indicating the oxidation states of the Ag nanoparticles did not change during photoelectrochemical operation; i.e., the metallic state of Ag is stable.…”

Section: Resultsmentioning

confidence: 94%

Boron-doped diamond semiconductor electrodes: Efficient photoelectrochemical CO2 reduction through surface modification

Roy

Hirano

Kuriyama³

et al. 2016

Sci Rep

View full text Add to dashboard Cite

Competitive hydrogen evolution and multiple proton-coupled electron transfer reactions limit photoelectrochemical CO2 reduction in aqueous electrolyte. Here, oxygen-terminated lightly boron-doped diamond (BDDL) thin films were synthesized as a semiconductor electron source to accelerate CO2 reduction. However, BDDL alone could not stabilize the intermediates of CO2 reduction, yielding a negligible amount of reduction products. Silver nanoparticles were then deposited on BDDL because of their selective electrochemical CO2 reduction ability. Excellent selectivity (estimated CO:H2 mass ratio of 318:1) and recyclability (stable for five cycles of 3 h each) for photoelectrochemical CO2 reduction were obtained for the optimum silver nanoparticle-modified BDDL electrode at −1.1 V vs. RHE under 222-nm irradiation. The high efficiency and stability of this catalyst are ascribed to the in situ photoactivation of the BDDL surface during the photoelectrochemical reaction. The present work reveals the potential of BDDL as a high-energy electron source for use with co-catalysts in photochemical conversion.

show abstract

Section: Resultsmentioning

confidence: 94%

Boron-doped diamond semiconductor electrodes: Efficient photoelectrochemical CO2 reduction through surface modification

Roy

Hirano

Kuriyama³

et al. 2016

Sci Rep

View full text Add to dashboard Cite

show abstract

“…A broader (low intensified) SPR peak is occurred at 570 nm and inferred that the few Cu NPs were formed of <1 nm after a 5 min ion-exchange at 580 °C (Fig. 1) 22,23 . The Cu particles exist in Cu 2+ and Cu + states inside a glass matrix where the Cu + does not respond to visible spectra for UV-Vis measurement while the Cu 2+ shows an optical response 24 .…”

Section: Resultsmentioning

confidence: 99%

Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour

Inwati

Rao

Singh

2018

Sci Rep

View full text Add to dashboard Cite

The Cu nanoparticles (Cu NPs) were grown in soda-lime glass matrix through Cu+ ↔ Na+ ion exchange methods under thermal annealing in an open environment and studied variation in their size on tunable plasmonic behaviour, optical absorption spectra and photoluminescence (PL). A blue shift from 570 to 560 nm was observed in localized surface plasmon resonance (SPR) of Cu NPs from 550 to 650 °C. A mutual relation between size and surface plasmon resonance with full width half maxima (FWHM) has been derived for plasmonic properties at variable temperatures. Structural investigations of embedded Cu NPs have been confirmed by using HRTEM and EDX. Grazing incidence X-ray diffraction (GIXRD) had identified a crystalline nature of Cu NPs under annealed conditions. XPS, Raman and secondary ion mass spectroscopies (SIMS) have identified an embedding behaviour of Cu NPs in glass matrix. Plasmonic and thermodynamic properties of embedded Cu NPs have explained their in situ thermal growth mechanism for efficient distribution where enthalpy (∆H), entropy (∆S) and Gibbs free energy (∆G) have interpreted their temperature driven Cu NPs growth. An interdependence of ∆H, ∆S and ∆G has been developed vis-a-vis activation energy on an extent of 12.54 J/mol.

show abstract

“…The soda-lime silicate glass coloring starts after the ion-exchange process takes place in the experiment, and it takes around an hour of heating or longer than this time. [35][36][37] Therefore the plasmonic properties observed here are of special interest due to ease of deposition by cost effective techniques on glass substrate. The appearance of this Ag-TiO 2 film (matrix) is shown in Fig.…”

Section: View Article Onlinementioning

confidence: 99%

“…† The chlorine impurity was identified in the EDX pattern on the surface of all the samples due to the precursor used in synthesis, and does not play a major role here for the plasmonic behavior of silver-gold nanoparticles. 8,35 The following equation presents the possible diffusion mechanism for silver exchange in soda-lime glass; The photographs of the formation of film at different stages are shown in Fig.…”

Section: View Article Onlinementioning

confidence: 99%

Facile deposition and plasmonic resonance of Ag–Au nanoparticles in titania thin film

et al. 2015

Self Cite

View full text Add to dashboard Cite

Plasmon resonance in noble metals at the nanoscale is technologically important for various applications as it is an important fundamental building block of plasmonic devices. Silver embedded in a glass matrix followed by the deposition of gold embedded in a titania matrix were synthesized in three to four steps by a simple and inexpensive thermal spray pyrolysis technique. The effects of annealing temperature on the plasmonic response and optical activity of silver and gold nanoclusters in soda-lime glass and titanium dioxide matrices have been investigated using UV-visible absorption spectroscopy and photoluminescence spectroscopy. The surface plasmon resonance (SPR) at a hybrid metal-dielectric interface for silver and gold was shown to be influenced by the presence of Ag + ions and the increased particle size of gold nanoparticles as a function of post annealing temperature. This study reveals that the SPR and the luminescence properties are strongly dependent on the glass matrix, which cannot be achieved in all types of glass slides.Field emission scanning electron micrographs confirming the presence of randomly shaped nanoparticles whose size increases with annealing temperature were inconsistent with the particle size calculated from Mie theory.

show abstract

Plasmonic resonance of Ag nanoclusters diffused in soda-lime glasses

Cited by 72 publications

References 42 publications

Boron-doped diamond semiconductor electrodes: Efficient photoelectrochemical CO2 reduction through surface modification

Boron-doped diamond semiconductor electrodes: Efficient photoelectrochemical CO2 reduction through surface modification

Thermodynamically induced in Situ and Tunable Cu Plasmonic Behaviour

Facile deposition and plasmonic resonance of Ag–Au nanoparticles in titania thin film

Contact Info

Product

Resources

About