Plasmonic photo-current in freestanding monolayered gold nanoparticle membranes

Gauvin, Mélanie; Alnasser, Thomas; Terver, E.; Abid, Inès; Mlayah, Adnen; Xie, Shiyi; Brugger, Juergen; Viallet, B.; Ressier, Laurence; Grisolia, J.

doi:10.1039/c6nr05091c

Cited by 13 publications

(19 citation statements)

References 20 publications

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“…As depicted in Figures 2 A and 2B, the junctions were fabricated by transferring a freshly prepared monolayered nanomembrane gently, via floating from the “soft” air-water interface onto micrometer-gapped Au trench electrodes, as described previously ( Wu et al., 2016 ). The nanomembrane is made of uniform Au@SiO 2 core-shell NPs with Au core diameter of ∼12 ± 1.2 nm and homogeneous silica shell thickness of ∼1.8 ± 0.5 nm (mean ± TEM, see Figure S1 for detailed characterizations) and was prepared by the method of liquid/liquid interface self-assembly ( Shin et al., 2015 , Gauvin et al., 2016 , please see “ Transparent Methods ” in the Supplemental Information ). Typically, 3 mL colloidal Au@SiO 2 NPs with compact silica shell (prepared and well-characterized according to our previous report ( Li et al., 2017 , please see “ Transparent Methods ” in the Supplemental Information ) were poured into a plastic container, and 460 μL hexane was added to the solution to form a liquid/liquid interface; then 3.7 mL methanol was poured into the mixture rapidly to capture the NPs at the hexane/water interface.…”

Section: Resultsmentioning

confidence: 99%

Plasmonics Yields Efficient Electron Transport via Assembly of Shell-Insulated Au Nanoparticles

Wang

et al. 2018

iScience

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SummaryJunctions built from metallic nanoparticles (NPs) can circumvent the diffraction limit and combine molecular/nanoelectronics with plasmonics. However, experimental advances in plasmon-assisted electron transport at the nanoscale have been limited. We construct junctions of a robust, molecule-free, suspended film, built solely from AuNPs, capped by SiO2 shells (Au@SiO2), which give insulating tunneling gaps up to 3.6 nm between the NPs. Current measured across monolayers of such AuNPs shows ultra-long-range, plasmon-enabled electron transport (P-transport), beyond the range of normal electron tunneling across insulators. This finding challenges the present understanding of electron transport in such systems and opens possibilities for future combinations of plasmonics and nanoelectronics.

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Section: Resultsmentioning

confidence: 99%

Plasmonics Yields Efficient Electron Transport via Assembly of Shell-Insulated Au Nanoparticles

Wang

et al. 2018

iScience

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“…The results showed a good reproducibility and stability. [65] The maximum amplitude of photo-current was found when the illumination wavelength of the laser matched with the maximum plasmonic peak (Figure 20c). The current increased proportionally with the applied voltage, and the photo-conductance also increased when the laser intensity increased.…”

Section: Photo Detectormentioning

confidence: 94%

Section: Societymentioning

confidence: 99%

Free‐Standing 2D Nanoassemblies

Shi

Cheng

2019

Adv Funct Materials

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Free-standing 2D nanoassemblies are ultrathin nanomembranes or nanosheets constructed from constituent nanoscale building blocks including metal nanoparticles, quantum dots, magnetic nanoparticles, typically by a bottom-up self-assembly approach. Such free-standing nanoassemblies are a new class of advanced functional materials that can integrate unique optoelectronic properties of nanomaterials with thin film mechanics into confined 2D space. This offers attributes such as minimizing substrate effects, facile transfer and soft devices in This article is protected by copyright. All rights reserved. 2 comparison to the corresponding substrate-supported system. This Review covers the recent progress in fabrication, characterization and application of the free-standing 2D nanoassemblies. To begin, the attributes of free-standing 2D nanoassemblies are discussed, followed by the description of fabrication methodologies. Then their novel optical, electronic, mechanical, magnetic, and stimuli responsible properties are covered, and their potential applications in filtration membrane, nanomechanical devices, and chemical sensing are further discussed. Finally, perspectives on the challenges and future opportunities of the freestanding 2D nanoassemblies are shared.

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“…[ 34,103 ] Therefore, SHIPNSs provide an effective solution to this problem and make the integration of plasmonics into nanoelectronics possible via core–shell nanoengineering and energy band modulation of electrons. Up to now, various SHIPNSs have been prepared and explored for plasmonic molecule electronics, [ 12,34,103–105 ] photoelectron conductance [ 103,106,107 ] and photovoltaic devices [ 108–110 ] applications, and uncovered unusual long‐range electron transport regimes. [ 10,11,40 ]…”

Section: Applications Of Shipnss In Advanced Nanoelectronicsmentioning

confidence: 99%

Section: Applications Of Shipnss In Advanced Nanoelectronicsmentioning

confidence: 99%

Shell‐Isolated Plasmonic Nanostructures for Biosensing, Catalysis, and Advanced Nanoelectronics

Jin

2020

Adv Funct Materials

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Shell‐isolated nanostructures, consisting of an inert shell and a plasmonic core, have recently been intensively explored for biosensing, catalysis, and nanoelectronics applications owing to their functional shells and unique plasmonic properties. Such designer shell‐isolated plasmonic nanostructures possess the potential to improve the detectability of biosensors and provide powerful platforms to explore in‐depth plasmon enhancement principles and finally boost significantly their photo(electro)catalytic efficiency. In addition, such structural optimization and interface nanoengineering promote solid developments of advanced nanoelectronics toward real applications, revealing new electron transport mechanisms and enabling exploration of new functional and integrated optoelectronic devices. In this overview, the state‐of‐the‐art progresses of shell‐isolated plasmonic nanostructures (SHIPNSs) in the field of biosensing, photo(electro)catalysis, and nanoelectronics is summarized, focusing on the superiority of the core–shell materials in exploration of biosensing, catalytic enhancement mechanisms, and electron transport principles. A brief overview of synthetic methods is introduced, and then the significant importance of shell‐isolated nanomaterials in fabrication and promising direction for future development and challenges are discussed.

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Plasmonic photo-current in freestanding monolayered gold nanoparticle membranes

Cited by 13 publications

References 20 publications

Plasmonics Yields Efficient Electron Transport via Assembly of Shell-Insulated Au Nanoparticles

Plasmonics Yields Efficient Electron Transport via Assembly of Shell-Insulated Au Nanoparticles

Free‐Standing 2D Nanoassemblies

Shell‐Isolated Plasmonic Nanostructures for Biosensing, Catalysis, and Advanced Nanoelectronics

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