Surface modification of Au and Ag plasmonic thin films via diazonium chemistry: Evaluation of structure and properties

Guselnikova, Olga; Postnikov, Pavel; Elashnikov, Roman; Trusova, Marina E.; Kalachyova, Y.; Libánský, Milan; Barek, Jiřı́; Kolská, Zdeňka; Švorčı́k, Václav; Lyutakov, Oleksiy

doi:10.1016/j.colsurfa.2016.12.040

Cited by 62 publications

(40 citation statements)

References 63 publications

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“…We start from the gold grating, which is able to support the excitation and propagation of surface plasmon‐polariton (SPP) waves under the light illumination at 780 nm wavelength. The gold grating surface was first grafted with –C 6 H 4 –NH 2 chemical moieties, via diazonium chemistry . In the next step, the RAFT agent was coupled with surface amino‐group via interaction with appropriate NHS‐ester.…”

Section: Resultsmentioning

confidence: 99%

“…Gold thin films about 25 nm in thickness were deposited onto the patterned surface by vacuum sputtering. 4‐Aminobenzenediazonium tosylate (ADT‐NH 2 ) was prepared according to the published procedure . The gold gratings were spontaneously modified by soaking in 2 × 10 −3 m freshly prepared aqueous solution of ADT‐NH 2 for 20 min and then rinsed under sonication sequentially with water, methanol, and acetone .…”

Section: Methodsmentioning

confidence: 99%

“…4‐Aminobenzenediazonium tosylate (ADT‐NH 2 ) was prepared according to the published procedure . The gold gratings were spontaneously modified by soaking in 2 × 10 −3 m freshly prepared aqueous solution of ADT‐NH 2 for 20 min and then rinsed under sonication sequentially with water, methanol, and acetone . The interaction with thiol compounds after the first stage of gold surface modification was performed by the soaking of samples in the methanol solution of biphenyl dithiol (5 × 10 −3 m L −1 ) to estimate the gold surface blocking.…”

Section: Methodsmentioning

confidence: 99%

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Plasmon‐Polariton Induced, “from Surface” RAFT Polymerization, as a Way toward Creation of Grafted Polymer Films with Thickness Precisely Controlled by Self‐Limiting Mechanism

Erzina

Guselnikova

Postnikov

et al. 2018

Adv Materials Inter

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field enhancement, surface plasmons also generate the so-called "hot electrons," arising from the nonradiative relaxation of the excited free electrons, which can activate the spatially close compounds. [7,8] Both phenomena become widely used in the field of plasmon-catalysis and chemical transformation. [9,10] Starting from the first observation of plasmon-induced amino or nitro groups transformations [11,12] the range of available plasmoninduced chemical reaction has grown exponentially and currently covers many essential fields of chemical technology and organic chemistry such as hydrogen dissociation, [13] water splitting, [14,15] hydrocarbon conversion, [16] click chemistry reaction, [17] just to mention a few.One of the more interesting and, so far, less explored avenues of plasmon-induced reactions is highly localized and controlled polymerization process. [18][19][20] First reports of plasmon-triggered polymerization refer to utilization of two-photon lithography and production of structures with subwavelength resolution in the common photoresist. [21,22] Plasmon-activated polymerization is not restricted to lithographic resist area. Recently the plasmon-assisted photopolymerization was also reported as a method for encapsulation of the noble metal nanoparticles by a variety of nonphoto-cross-linkable polymers. [23,24] The perfect control over the thickness of the polymer layer and the spatially resolved polymer growth was achieved by varying of illumination time, light wavelength, and monomers applied. [25,26] The plasmon-induced nature of the polymerization was convincingly confirmed by the comparison of plasmon intensity distribution and the volumes in which the polymer was formed. [27][28][29] So, the plasmon-induced polymerization can also be used to control polymer grafting to the plasmonic surface. [25,30] Moreover, it can be expected that the utilization of plasmon phenomena will facilitate the preparation of well-ordered polymer ad-layer with the plasmon defined thickness. In this paper, we propose the reversible addition-fragmentation chain-transfer (RAFT) polymerization as an example of plasmon inducing "from surface" polymerization. The RAFT polymerization is Plasmon-induced "from surface" reversible addition-fragmentation chain-transfer (RAFT) polymerization is reported for the first time. The gold grating surface, supporting the surface plasmon polariton excitation and propagation, is grafted with RAFT agent, immersed in the solution, containing the NIPAm monomer and AIBN and subsequently illuminated at a wavelength corresponding to plasmon absorption. The grafting of the polymer layer, its thickness, and morphology are characterized by several techniques (including the surface-enhanced Raman spectroscopy (SERS), scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM-EDX), X-ray photoelectron spectroscopy (XPS), nanomechanical atomic force microscopy (AFM) mapping, and goniometry). It is shown that the polymerization efficiently starts only under the surface plasmon-polar...

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Plasmon‐Polariton Induced, “from Surface” RAFT Polymerization, as a Way toward Creation of Grafted Polymer Films with Thickness Precisely Controlled by Self‐Limiting Mechanism

Erzina

Guselnikova

Postnikov

et al. 2018

Adv Materials Inter

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“…(Amine terminated) poly ( N ‐isopropylacrylamide), ( M n = 2500) (PNIPAM‐NH 2 ), poly (acrylic acid) amino‐terminated (PAA‐NH 2 ) ( M n = 3600), 4‐aminobenzoic acid (≥99.0%), p ‐toluenesulfonic acid monohydrate (ACS reagent ≥ 98.5%), tert ‐butyl nitrite (90.0%), N ‐(3‐dimethylaminopropyl)‐N′‐ethylcarbodiimide hydrochloride (≥99.0% (AT)), N ‐hydroxysulfosuccinimide (NHS) sodium salt (≥98.0% high‐performance liquid chromatography (HPLC)), high‐purity water (EMD MILLIPORE), acetic acid (≥99.5%), methanol (anhydrous, 99.8%), diethyl ether (≥99.7%), were purchased from Sigma‐Aldrich and used without further purification. 4‐carboxybenzenediazonium tosylate (ADT‐COOH) was prepared according to a published procedure …”

Section: Methodsmentioning

confidence: 99%

Multiresponsive Wettability Switching on Polymer Surface: Effect of Surface Chemistry and/or Morphology Tuning

Guselnikova

Postnikov

Elashnikov

et al. 2019

Adv Materials Inter

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The design of responsive surfaces with reversible and fast wettability switching by external control represents one of the most urgent challenges in the surface and interfaces sciences. Especially surfaces responding to more than one stimulus are expected to find even broader range of applications. In this paper, a multiresponsive polymer surface is proposed and investigated that is able to respond to the pH, temperature, and electric field. The surface triggering is subdivided into chemically‐based (pH and temperature) and morphologically‐based (application of electric field). The various combinations of three external triggering are applied separately, conjunctively, or adversarily for detailed investigation of their joint action effect. It is found that the most significant changes in wettability switching are achieved by the simultaneous combination of the reversible chemistry and morphology switching. Oppositely, the utilization of the wettability switching through the combination of chemical stimuli produces negative interference of surface response, with the suppression of stimuli efficiency.

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“…20 The fine tuning of optical response essentially demands the precisely controlled growth technique along with sub-nanometer scale morphological characterization. 21,22 A variety of physical deposition techniques such as laser ablation, 23,24 thermal evaporation, 25 e-beam evaporation, 26 and sputtering 17 are used for the deposition of Au ultra-thin films. Among these, sputtering is widely used for homogeneous and controlled morphological growth of the metals thin film.…”

Section: Introductionmentioning

confidence: 99%

A study of growth and thermal dewetting behavior of ultra-thin gold films using transmission electron microscopy

Sudheer

Mondal

et al. 2017

AIP Advances

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The growth and solid-state dewetting behavior of Au thin films (0.7 to 8.4 nm) deposited on the formvar film (substrate) by sputtering technique have been studied using transmission electron microscopy. The size and number density of the Au nanoparticles (NPs) change with an increase in the film thickness (0.7 to 2.8 nm). Nearly spherical Au NPs are obtained for <3 nm thickness films whereas percolated nanostructures are observed for ≥3 nm thickness films as a consequence of the interfacial interaction of Au and formvar film. The covered area fraction (CAF) increases from ∼13 to 75 % with the change in film thickness from 0.7 to 8.4 nm. In-situ annealing of ≤3 nm film produces comparatively bigger size and better sphericity Au NPs along with their narrow distributions, whereas just percolated film produces broad distribution in size having spherical as well as elongated Au NPs. The films with thickness ≤3 nm show excellent thermal stability. The films having thickness >6 nm show capability to be used as an irreversible temperature sensor with a sensitivity of ∼0.1 CAF/°C. It is observed that annealing affects the crystallinity of the Au grains in the films. The electron diffraction measurement also shows annealing induced morphological evolution in the percolated Au thin films (≥3 nm) during solid-state dewetting and recrystallization of the grains.

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Surface modification of Au and Ag plasmonic thin films via diazonium chemistry: Evaluation of structure and properties

Cited by 62 publications

References 63 publications

Plasmon‐Polariton Induced, “from Surface” RAFT Polymerization, as a Way toward Creation of Grafted Polymer Films with Thickness Precisely Controlled by Self‐Limiting Mechanism

Plasmon‐Polariton Induced, “from Surface” RAFT Polymerization, as a Way toward Creation of Grafted Polymer Films with Thickness Precisely Controlled by Self‐Limiting Mechanism

Multiresponsive Wettability Switching on Polymer Surface: Effect of Surface Chemistry and/or Morphology Tuning

A study of growth and thermal dewetting behavior of ultra-thin gold films using transmission electron microscopy

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