Enhanced Plasmonic Photocatalysis through Synergistic Plasmonic–Photonic Hybridization

Huang, Qinglan; Canady, Taylor D.; Gupta, Rohit; Li, Nantao; Singamaneni, Srikanth; Cunningham, Brian T.

doi:10.1021/acsphotonics.0c00945

Cited by 26 publications

(27 citation statements)

References 44 publications

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“…Various plasmonic PCs have been introduced for photocatalysis applications, ranging from water splitting [57] and the mineralization of organic pollutants [58]. A strategy toward the substantial enhancement of hot-electron generation at tunable narrow-band wavelengths using the hybridization of plasmonic and photonic resonance was introduced by Huang et al [53]. By coupling the plasmon resonance of Ag NPs to the guided-mode resonance in a dielectric PC slab, the reduction conversion driven by hot electrons was significantly accelerated at a low illumination intensity (Figure 4c,d).…”

Section: Hybrid Plasmonic-photonic Photocatalystsmentioning

confidence: 99%

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Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

et al. 2020

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Issues related to global energy and environment as well as health crisis are currently some of the greatest challenges faced by humanity, which compel us to develop new pollution-free and sustainable energy sources, as well as next-generation biodiagnostic solutions. Optical functional nanostructures that manipulate and confine light on a nanometer scale have recently emerged as leading candidates for a wide range of applications in solar energy conversion and biosensing. In this review, recent research progress in the development of photonic and plasmonic nanostructures for various applications in solar energy conversion, such as photovoltaics, photothermal conversion, and photocatalysis, is highlighted. Furthermore, the combination of photonic and plasmonic nanostructures for developing high-efficiency solar energy conversion systems is explored and discussed. We also discuss recent applications of photonic–plasmonic-based biosensors in the rapid management of infectious diseases at point-of-care as well as terahertz biosensing and imaging for improving global health. Finally, we discuss the current challenges and future prospects associated with the existing solar energy conversion and biosensing systems.

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Section: Hybrid Plasmonic-photonic Photocatalystsmentioning

confidence: 99%

“…(c) Simulated near-field intensity of the Au@Ag-PC hybrid at θ = 3.5 • , and (d) measured (1-reflectance-transmittance) spectra of the Au@Ag-PC hybrid at various incidence angles. Reproduced with permission from[53]. Copyright American Chemical Society, 2020.…”

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confidence: 99%

Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

et al. 2020

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“…This opens up a possibility to modulate such reactivity by changing the strength of the electric field, laser wavelength and by modifications of nanoparticles. Cunningham's group develops a plasmonic-photonic resonance hybridization method that allowed for significant enhancement of generation of hot electron at tunable, narrow-band wavelengths [60]. The researchers have coupled the plasmon resonance of Ag nanoparticles to the guided mode resonance in a dielectric photonic crystal slab where the hot-electron triggered reduction is significantly enhanced at selected narrowband wavelengths and broad spectral tunability, Figure 6.…”

Section: Plasmon-driven Scissoring and Elimination Reactionsmentioning

confidence: 99%

“…(b) Simulated absorption σ abs of single Au@Ag on the photonic crystal surface. (c) Hot-electron-driven reduction of 4-NTP to 4-ATP[60].…”

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confidence: 99%

Nanoscale structural characterization of plasmon-driven reactions

Kurouski

2021

Nanophotonics

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Illumination of noble metal nanostructures by electromagnetic radiation induces coherent oscillations of conductive electrons on their surfaces. These coherent oscillations of electrons, also known as localized surface plasmon resonances (LSPR), are the underlying physical cause of the electromagnetic enhancement of Raman scattering from analytes located in a close proximity to the metal surface. This physical phenomenon is broadly known as surface-enhanced Raman scattering (SERS). LSPR can decay via direct interband, phonon-assisted intraband, and geometry-assisted transitions forming hot carriers, highly energetic species that are responsible for a large variety of chemical transformations. This review critically discusses the most recent progress in mechanistic elucidation of hot carrier-driven chemistry and catalytic processes at the nanoscale. The review provides a brief description of tip-enhanced Raman spectroscopy (TERS), modern analytical technique that possesses single-molecule sensitivity and angstrom spatial resolution, showing the advantage of this technique for spatiotemporal characterization of plasmon-driven reactions. The review also discusses experimental and theoretical findings that reported novel plasmon-driven reactivity which can be used to catalyze redox, coupling, elimination and scissoring reactions. Lastly, the review discusses the impact of the most recently reported findings on both plasmonic catalysis and TERS imaging.

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“…[35,36] Very recently, plasmonic blocks with gold nanorods as the core and silver nanocuboids as the shell have been synergistically resonated with photonic waveguide modes through tuning of incidence angle. [37] The hybrid mode resulted in enhanced hot electron generation leading to increased photocatalytic reaction, as compared to non-hybrid LSPR excitation.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Charge Transfers in Large‐Scale Metallic and Colloidal Photonic Crystal Slabs

Sarkar

Gupta

Tsuda

et al. 2021

Adv Funct Materials

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The challenges in plasmonic charge transfer on a large‐scale and low losses are systematically investigated by optical designs using 1D‐plasmonic lattice structures. These plasmonic lattices are used as couplers to guide the energy in an underneath sub‐wavelength titanium dioxide layer, resulting in the photonic crystal slabs. So far, photodetection is possible at energy levels close to the semiconductor bandgap; however, with the observed hybrid plasmonic–photonic modes, other wavelengths over the broad solar spectrum can be easily accessed for energy harvesting. The photo‐enhanced current is measured locally with simple two‐point contact on the centimeter‐squared nanostructure by applying a bias voltage. As lattice couplers, interference lithographically fabricated conventional gold grating provides an advantage in fabrication; this optical concept is extended for the first time toward colloidal self‐assembled nanoparticle chains to make the charge injection accessible for large‐scale at reasonable costs with possibilities of photodetection by electric field vectors both along and perpendicular to the grating lines. To discuss the bottleneck of unavoidable isolating ligand shell of nanoparticles in contrast to the directly contacted nanobars, polarization‐dependent ultrafast characterizations are carried out to study the charge injection processes in femtosecond resolution.

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Enhanced Plasmonic Photocatalysis through Synergistic Plasmonic–Photonic Hybridization

Cited by 26 publications

References 44 publications

Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

Photonic–Plasmonic Nanostructures for Solar Energy Utilization and Emerging Biosensors

Nanoscale structural characterization of plasmon-driven reactions

Plasmonic Charge Transfers in Large‐Scale Metallic and Colloidal Photonic Crystal Slabs

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