Plasmon-enhanced photocurrent generation and water oxidation from visible to near-infrared wavelengths

Ueno, Kosei; Misawa, Hiroaki

doi:10.1038/am.2013.42

Cited by 77 publications

(64 citation statements)

References 63 publications

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“…The details of this and related studies are summarized in review papers from Misawa's group, with discussions on how to optimize the materials and physical structures with semiconductor photoelectrodes for plasmon-induced water splitting. 35,36 Some very recent work from other groups is presented here.…”

Section: Recent Progress In Plasmonic Photocatalystsmentioning

confidence: 99%

Insight into plasmonic hot-electron transfer and plasmon molecular drive: new dimensions in energy conversion and nanofabrication

2017

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Localized surface plasmon resonance (LSPR) of plasmonic nanoparticles and nanostructures has attracted wide attention because the nanoparticles exhibit a strong near-field enhancement through interaction with visible light, enabling subwavelength optics and sensing at the single-molecule level. The extremely fast LSPR decays have raised doubts that such nanoparticles have use in photochemistry and energy storage. Recent studies have demonstrated the capability of such plasmonic systems in producing LSPR-induced hot electrons that are useful in energy conversion and storage when combined with electron-accepting semiconductors. Due to the femtosecond timescale, hot-electron transfer is under intense investigation to promote ongoing applications in photovoltaics and photocatalysis. Concurrently, hot-electron decay results in photothermal responses or plasmonic heating. Importantly, this heating has received renewed interest in photothermal manipulation, despite the developments in optical manipulation using optical forces to move and position nanoparticles and molecules guided by plasmonic nanostructures. To realize plasmonic heating-based manipulation, photothermally generated flows, such as thermophoresis, the Marangoni effect and thermal convection, are exploited. Plasmon-enhanced optical tweezers together with plasmon-induced heating show potential as an ultimate bottom-up method for fabricating nanomaterials. We review recent progress in two fascinating areas: solar energy conversion through interfacial electron transfer in gold-semiconductor composite materials and plasmon-induced nanofabrication.

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Section: Recent Progress In Plasmonic Photocatalystsmentioning

confidence: 99%

Insight into plasmonic hot-electron transfer and plasmon molecular drive: new dimensions in energy conversion and nanofabrication

2017

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“…In addition, large area and low-cost fabrication techniques [88,89] can be used for silicon-based hot electron photodetectors. Hot electron photodetectors can be employed in the visible regime [58,[96][97][98][99] by swapping silicon with larger bandgap materials such as TiO 2 [58, 96-98, 100, 101] and ZnO [99]. These detectors have much higher efficiencies than their telecommunication band counterparts due to the higher photon energy of visible light.…”

Section: Free-space Photodetectorsmentioning

confidence: 99%

Harvesting the loss: surface plasmon-based hot electron photodetection

2016

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Abstract:Although the nonradiative decay of surface plasmons was once thought to be only a parasitic process within the plasmonic and metamaterial communities, hot carriers generated from nonradiative plasmon decay offer new opportunities for harnessing absorption loss. Hot carriers can be harnessed for applications ranging from chemical catalysis, photothermal heating, photovoltaics, and photodetection. Here, we present a review on the recent developments concerning photodetection based on hot electrons. The basic principles and recent progress on hot electron photodetectors are summarized. The challenges and potential future directions are also discussed.

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“…[1][2][3] However, it remains a grand challenge to realize dynamic and reversible tuning of plasmons with large spectral shifts, which can be applied in large-area wallpapers and video walls, as well as sensors. Previous attempts to realize such a dynamic and reversible tuning used liquid crystals, [ 4,5 ] phase-change materials, DNA origami, [6][7][8] mechanical stretching, [ 9,10 ] stimuli-responsive polymers, [11][12][13][14] and electric fi elds.…”

Section: Doi: 101002/adom201600094mentioning

confidence: 99%

Fast Dynamic Color Switching in Temperature‐Responsive Plasmonic Films

Ding

Rüttiger

Zheng

et al. 2016

Advanced Optical Materials

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COMMUNICATIONmembranes, biosensing, tissue engineering, and drug delivery. [ 19,20 ] Due to its strong volume shrinkage (up to 90%) when the temperature rises above a critical hydration temperature ( T c ) and its full reversibility across this phase transition, pNIPAM has been utilized to tune plasmons in Au/Ag nanoparticles (NPs) and nanorods. [21][22][23][24][25][26][27] However, because these plasmonic assemblies are either randomly decorated around the surface of pNIPAM microgels or aggregates with undefi ned number of particles and confi gurations, it is hard to understand the physics of the mixture of different plasmonic constructs properly. Moreover, it takes time for water to diffuse inside the microgels to fully swell them, thus the speed of volume changes has been relatively slow (typically a few seconds).Here, we graft pNIPAM layers ( d = 70 nm thick) onto Au mirror by applying surface-initiated atom transfer radical polymerization (SI-ATRP) protocols, and place scattering Au NPs on top. By utilizing the phase transition of the pNIPAM, the separation between Au NP and Au fi lm is widely tunable, thereby leading to a dynamic and reversible plasmon tuning system based on modulating the resonant modes. The resulting fi lms exhibit strong color changes, are simple to fabricate, can be fl exible, are low cost, can easily scale to large areas, and respond faster than video rates. In addition, the plasmonic nanoparticles can also be optically irradiated to locally switch the surrounding pNIPAM layers, creating video-rate all-optical switching over large areas.The Au mirrors are deposited via electron beam evaporation with roughness controlled below 1.5 ± 0.5 nm. [ 28 ] The pNIPAM fi lms are then prepared on these Au fi lms by SI-ATRP ( Figure 1 , Experimental Section). [ 29 ] The thickness of the as-grown dry pNIPAM fi lms is determined to be 67 ± 1 nm via ellipsometry ( Figure S1, Supporting Information). The molecular weight estimated from the free pNIPAM synthesized under the same condition is 26.3 kDa as determined by size-exclusion chromatography. The transition temperature of this pNIPAM fi lm determined through contact angle measurement is around 30 °C ( Figure S2, Supporting Information). This value is slightly lower than the normal lower critical solution temperature (LCST) (32 °C) of pNIPAM mainly because of the residue Cu 2+ salts and polar end groups introduced during the ATRP process. The D = 100 nm diameter Au NPs (from BBI Solutions with 10% monodispersity, Figure S3, Supporting Information) deposited on the fi lms from solution appear slightly embedded inside the pNIPAM brushes as seen in scanning electron microscopy (SEM) images (inset Figure 1 ). Nanoparticle densities are varied up to 1 nanoparticle µm -2 to ensure that there is minimal coupling between nanoparticles, while the total scattering is maximized. Though this Au NP on mirror (NPoM) is related to the recent advances in small-gap constructs, [ 22 ] here the gap remains larger than the radius, reducing the plasmonic This is an ope...

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Plasmon-enhanced photocurrent generation and water oxidation from visible to near-infrared wavelengths

Cited by 77 publications

References 63 publications

Insight into plasmonic hot-electron transfer and plasmon molecular drive: new dimensions in energy conversion and nanofabrication

Insight into plasmonic hot-electron transfer and plasmon molecular drive: new dimensions in energy conversion and nanofabrication

Harvesting the loss: surface plasmon-based hot electron photodetection

Fast Dynamic Color Switching in Temperature‐Responsive Plasmonic Films

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