Chemical reactions driven by plasmon-induced hot carriers

Shin, Hyun-Hang; Koo, Ja-Jung; Lee, Kang Sup; Kim, Zee Hwan

doi:10.1016/j.apmt.2019.04.018

Cited by 52 publications

(44 citation statements)

References 107 publications

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“…Other studies have integrated firstprinciples calculations of band-structure 40 , photon absorption 17,18,41 , and e-p interactions 17,18 into models for nonequilibrium electron dynamics to improve agreement with experiment. Recent work by the plasmonics community has focused on understanding how hot electrons effect photocatalytic efficiencies in plasmonic systems 3,21,22,[42][43][44][45][46] .…”

mentioning

confidence: 99%

Parametric dependence of hot electron relaxation timescales on electron-electron and electron-phonon interaction strengths

Wilson

Coh

2020

Commun Phys

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Understanding how photoexcited electron dynamics depend on electron-electron (e-e) and electron-phonon (e-p) interaction strengths is important for many fields, e.g. ultrafast magnetism, photocatalysis, plasmonics, and others. Here, we report simple expressions that capture the interplay of e-e and e-p interactions on electron distribution relaxation times. We observe a dependence of the dynamics on e-e and e-p interaction strengths that is universal to most metals and is also counterintuitive. While only e-p interactions reduce the total energy stored by excited electrons, the time for energy to leave the electronic subsystem also depends on e-e interaction strengths because e-e interactions increase the number of electrons emitting phonons. The effect of e-e interactions on energy-relaxation is largest in metals with strong e-p interactions. Finally, the time high energy electron states remain occupied depends only on the strength of e-e interactions, even if e-p scattering rates are much greater than e-e scattering rates.

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confidence: 99%

Parametric dependence of hot electron relaxation timescales on electron-electron and electron-phonon interaction strengths

Wilson

Coh

2020

Commun Phys

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“…Plasmonic nanoparticles can be used to boost chemical reactions based on such a local temperature variation but also with optical near-eld enhancement and hot-carrier injection 44 . is paradigm represents an important research area in plasmonics with pivotal, societal and economic impact as it could contribute to cleaner energies 45 . In particular, hot-electron injection involves metal electrons of a few electronvolts capable of driving reactions that could not occur otherwise via conventional heating.…”

Section: Photothermal and Hot-electron Chemistrymentioning

confidence: 99%

“…But in this approach, even if optical heating is not the process of interest, it has to be carefully considered to ensure the validity of the underlying catalytic mechanism. For these reasons, the rest of the section will be divided into two parts: in the rst part, plasmonic heating is the targeted process to assist chemical reactions 46 ; whereas the second part is oriented towards hot-carrier plasmonics 45 .…”

Section: Photothermal and Hot-electron Chemistrymentioning

confidence: 99%

Applications and challenges of thermoplasmonics

2020

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Over the past two decades, there has been a growing interest in the use of plasmonic nanoparticles as sources of heat remotely controlled by light, giving rise to the field of thermoplasmonics. The ability to release heat on the nanoscale has already impacted a broad range of research activities, from biomedicine to imaging and catalysis. Thermoplasmonics is now entering an important phase: some applications have engaged in an industrial stage, while others, originally full of promise, experience some difficulty in reaching their potential. Meanwhile, innovative fundamental areas of research are being developed. In this Review, we scrutinize the current research landscape in thermoplasmonics, with a specific focus on its applications and main challenges in many different fields of science, including nanomedicine, cell biology, photothermal and hot-electron chemistry, solar light harvesting, soft matter and nanofluidics.

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“…Interesting hot carrier reactivity was reported by Zhang and coworkers [51] that leads to NO 2 elimination (C-N dissociation) in 4-nitrobenzenethiol, as well as by Schürmann and Bald [52] reported C-Br cleavage in bromoadenine. Extensive analysis of hot carrier-driven reactions discovered using SERS can be found in excellent reviews by Kim [53,54], Linic [55,56], Halas [57], Schlücker [28] and Maier [25]. 3 Methods for enhancement of plasmon-driven reactivity 3.1 Synthetic approaches for the enhancement of hot carrier-driven reactivity…”

Section: Plasmon-driven Scissoring and Elimination Reactionsmentioning

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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Chemical reactions driven by plasmon-induced hot carriers

Cited by 52 publications

References 107 publications

Parametric dependence of hot electron relaxation timescales on electron-electron and electron-phonon interaction strengths

Parametric dependence of hot electron relaxation timescales on electron-electron and electron-phonon interaction strengths

Applications and challenges of thermoplasmonics

Nanoscale structural characterization of plasmon-driven reactions

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