Plasmonic enhancement of dual mode fluorescence in a silver nano-antenna–ZnO:Er<sup>3+</sup> hybrid nanostructure

Das, Ritwick; Phadke, Parikshit; Khichar, Naveen; Chawla, Santa

doi:10.1039/c4tc01479k

Cited by 12 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the electromagnetic theory, also well known as Mie theory, the plasmonic NPs can create resonance modes at sub-wavelength and wavelength scale dimensions . These resonance modes lead to resonant optical antenna effects that significantly contribute the optical absorption Figure a shows experimental data of UV–vis absorption spectra for two different plasmonic nanoparticles (SiO 2 @Ag and SiO 2 @Ag@SiO 2 ) which were dispersed in water.…”

Section: Resultsmentioning

confidence: 99%

Enhancing Solar Water Splitting of Textured BiVO₄ by Dual Effect of a Plasmonic Silver Nanoshell: Plasmon-Induced Light Absorption and Enhanced Hole Transport

Çalışkan

Kim

Han

et al. 2020

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Herein, we demonstrate high-efficiency photoelectrochemical (PEC) water oxidation by combining a textured BiVO 4 (t-BVO) photoanode with doubledeck structured SiO 2 @Ag nanoparticles (NPs) with a Ag nanoshell. The SiO 2 @Ag NPs, composed of a SiO 2 core with a diameter of ∼90 nm and a Ag shell with a thickness of ∼20 nm, induce the strong localized surface plasmon resonance (LSPR). This LSPR effect amplifies the electric fields on the near surface of t-BVO, resulting in efficient light harvesting and charge separation performance. Furthermore, the direct contact of the Ag shell with the surface of t-BVO promotes the efficient charge transfer and subsequent water oxidation under visible light. Consequently, the high photocurrent density values of 5.8 mA/cm 2 for SiO 2 @Ag/t-BVO photoanodes at 1.23 V versus a reversible hydrogen electrode are obtained, which is 49% improvement compared to the pristine t-BVO photoanode (3.9 mA/cm 2 ). The effect of plasmonic nanoparticles on the PEC of t-BVO is explained from the viewpoint of the light confinement (near-field effect), the plasma-induced energy transfer, and the improved catalytic efficiency. Building up such a synergistic nanostructured photoelectrode system is a promising approach for achieving high efficiency in PEC water splitting.

show abstract

Section: Resultsmentioning

confidence: 99%

Enhancing Solar Water Splitting of Textured BiVO₄ by Dual Effect of a Plasmonic Silver Nanoshell: Plasmon-Induced Light Absorption and Enhanced Hole Transport

Çalışkan

Kim

Han

et al. 2020

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

show abstract

“…Light interactions with freely movable electrons in a metal particle can increase the incident light field. Such an effect (lightning rod effect) [56][57] is associated with an extra excitation field. This can have a tremendous effect, causing MEF.…”

Section: Mechanismmentioning

confidence: 99%

Metal‐Enhanced Fluorescence due to Salicylaldehyde‐Silver Nanoparticle Interactions for Fe³⁺ Sensing

2023

View full text Add to dashboard Cite

Silver nanoparticles were synthesized using alkaline salicylaldehyde (SL) in the presence of silver nitrate. SL was oxidized to quinone form, while silver(I) was converted to silver (0). The solution was highly fluorescent, (quantum yield 7 %, λ ex 290 nm, λ max 424 nm), where silver (0) exhibited metalenhanced fluorescence and quinone acted as the fluorophore. The fluorescence was selectively quenched with the addition of Fe 3 + . No other metal shows such drastic fluorescence quenching. Thus, silver-enhanced fluorescence is used to detect iron selectively and sensitively (limit of detection 2 × 10 À 9 M, linear detection ranges from 10 À 4 M to 8 × 10 À 9 M). The detection of iron was also done at various water of natural sources (drinking water tap water, rainwater, and Ganga River water). The iron concentration was quite similar to atomic absorption spectroscopy. The enhancement of fluorescence of the sliver atom is attributed to enhanced photonic mode density, related to the lightning rod effect. The quenching of silver-enhanced fluorescence was attributed to the destruction of the capping agent due to SL-iron complexation. The variation of distance between the fluorophore and metalized surface was anticipated for the alteration of fluorescence with and without the Fe 3 + ion.

show abstract

“…Except the referenced particles, many other shapes or other kinds of particles were used to enhance the luminescence, such as nano-stars, nano-caps, and nano-hexagons [ 80 , 81 , 82 ]. Among NPs with different shapes, the most promising nanoparticle is metal nanorods (NRs) due to their tunable LSPR band and large-scale production without high cost [ 83 ].…”

Section: Plasmon-modulated Luminescence Of Lanthanide Materialsmentioning

confidence: 99%

Modulated Luminescence of Lanthanide Materials by Local Surface Plasmon Resonance Effect

et al. 2021

View full text Add to dashboard Cite

Lanthanide materials have great applications in optical communication, biological fluorescence imaging, laser, and so on, due to their narrow emission bandwidths, large Stokes’ shifts, long emission lifetimes, and excellent photo-stability. However, the photon absorption cross-section of lanthanide ions is generally small, and the luminescence efficiency is relatively low. The effective improvement of the lanthanide-doped materials has been a challenge in the implementation of many applications. The local surface plasmon resonance (LSPR) effect of plasmonic nanoparticles (NPs) can improve the luminescence in different aspects: excitation enhancement induced by enhanced local field, emission enhancement induced by increased radiative decay, and quenching induced by increased non-radiative decay. In addition, plasmonic NPs can also regulate the energy transfer between two close lanthanide ions. In this review, the properties of the nanocomposite systems of lanthanide material and plasmonic NPs are presented, respectively. The mechanism of lanthanide materials regulated by plasmonic NPs and the scientific and technological discoveries of the luminescence technology are elaborated. Due to the large gap between the reported enhancement and the theoretical enhancement, some new strategies applied in lanthanide materials and related development in the plasmonic enhancing luminescence are presented.

show abstract

Plasmonic enhancement of dual mode fluorescence in a silver nano-antenna–ZnO:Er³⁺ hybrid nanostructure

Cited by 12 publications

References 32 publications

Enhancing Solar Water Splitting of Textured BiVO₄ by Dual Effect of a Plasmonic Silver Nanoshell: Plasmon-Induced Light Absorption and Enhanced Hole Transport

Enhancing Solar Water Splitting of Textured BiVO₄ by Dual Effect of a Plasmonic Silver Nanoshell: Plasmon-Induced Light Absorption and Enhanced Hole Transport

Metal‐Enhanced Fluorescence due to Salicylaldehyde‐Silver Nanoparticle Interactions for Fe³⁺ Sensing

Modulated Luminescence of Lanthanide Materials by Local Surface Plasmon Resonance Effect

Contact Info

Product

Resources

About

Plasmonic enhancement of dual mode fluorescence in a silver nano-antenna–ZnO:Er3+ hybrid nanostructure

Cited by 12 publications

References 32 publications

Enhancing Solar Water Splitting of Textured BiVO4 by Dual Effect of a Plasmonic Silver Nanoshell: Plasmon-Induced Light Absorption and Enhanced Hole Transport

Enhancing Solar Water Splitting of Textured BiVO4 by Dual Effect of a Plasmonic Silver Nanoshell: Plasmon-Induced Light Absorption and Enhanced Hole Transport

Metal‐Enhanced Fluorescence due to Salicylaldehyde‐Silver Nanoparticle Interactions for Fe3+ Sensing

Modulated Luminescence of Lanthanide Materials by Local Surface Plasmon Resonance Effect

Contact Info

Product

Resources

About

Plasmonic enhancement of dual mode fluorescence in a silver nano-antenna–ZnO:Er³⁺ hybrid nanostructure

Enhancing Solar Water Splitting of Textured BiVO₄ by Dual Effect of a Plasmonic Silver Nanoshell: Plasmon-Induced Light Absorption and Enhanced Hole Transport

Enhancing Solar Water Splitting of Textured BiVO₄ by Dual Effect of a Plasmonic Silver Nanoshell: Plasmon-Induced Light Absorption and Enhanced Hole Transport

Metal‐Enhanced Fluorescence due to Salicylaldehyde‐Silver Nanoparticle Interactions for Fe³⁺ Sensing