Plasmonic Au Nanoparticle Arrays for Monitoring Photopolymerization at the Nanoscale

Khitous, Amine; Lin, Ching Fu; Kameche, Farid; Zan, Hsiao Wen; Malval, Jean Pierre; Berling, Dominique; Soppera, Olivier

doi:10.1021/acsanm.1c01377

Cited by 15 publications

(30 citation statements)

References 27 publications

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“…The tuning of plasmon resonances has important applications in biosensor devices − and photovoltaics , because the plasmon resonance strongly depends on the cluster size, arrangement, the materials used, and their composition . Especially the use of bimetallic alloys allows for fine-tuning of the plasmon resonance, which offers new pathways in anticounterfeiting: in combination with polymer supports and templates, structural color can readily be achieved by exploiting the plasmon resonance. ,− Moreover, this enables fast electrochromic color switching of smart windows .…”

Section: Introductionmentioning

confidence: 99%

In Situ Monitoring of Scale Effects on Phase Selection and Plasmonic Shifts during the Growth of AgCu Alloy Nanostructures for Anticounterfeiting Applications

Schwartzkopf

Rothkirch

Carstens

et al. 2022

ACS Appl. Nano Mater.

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Tailoring of plasmon resonances is essential for applications in anticounterfeiting. This is readily achieved by tuning the composition of alloyed metal clusters; in the simplest case, binary alloys are used. Yet, one challenge is the correlation of cluster morphology and composition with the changing optoelectronic properties. Hitherto, the early stages of metal alloy nanocluster formation in immiscible binary systems such as silver and copper have been accessible by molecular dynamics (MD) simulations and transmission electron microscopy (TEM). Here, we investigate in real time the formation of supported silver, copper, and silver–copper-alloy nanoclusters during sputter deposition on poly(methyl methacrylate) by combining in situ surface-sensitive X-ray scattering with optical spectroscopy. While following the transient growth morphologies, we quantify the early stages of phase separation at the nanoscale, follow the shifts of surface plasmon resonances, and quantify the growth kinetics of the nanogranular layers at different thresholds. We are able to extract the influence of scaling effects on the nucleation and phase selection. The internal structure of the alloy cluster shows a copper-rich core/silver-rich shell structure because the copper core yields a lower mobility and higher crystallization tendency than the silver fraction. We compare our results to MD simulation and TEM data. This demonstrates a route to tailor accurately the plasmon resonances of nanosized, polymer-supported clusters which is a crucial prerequisite for anticounterfeiting.

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Section: Introductionmentioning

confidence: 99%

In Situ Monitoring of Scale Effects on Phase Selection and Plasmonic Shifts during the Growth of AgCu Alloy Nanostructures for Anticounterfeiting Applications

Schwartzkopf

Rothkirch

Carstens

et al. 2022

ACS Appl. Nano Mater.

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“…Note that the conductivity of the pristine PEDOT:PSS film did not increase after photo annealing, suggesting the great contribution of AuNPs in photo annealing. 36 The increase in electrical conductivity of the PEDOT:PSS films after AuNP doping and photo annealing could also be confirmed by the sheet resistance of the films (Figure 2c). As shown, the sheet resistance of the film decreased along with the increase in AuNP doping concentration, and the sheet resistance further decreased when the films were photo annealed.…”

Section: Design and Fabrication Of High-performancementioning

confidence: 57%

“…This conductivity is about 3.1-fold of that for the pristine PEDOT:PSS film. Note that the conductivity of the pristine PEDOT:PSS film did not increase after photo annealing, suggesting the great contribution of AuNPs in photo annealing …”

Section: Results and Discussionmentioning

confidence: 99%

High-Performance Organic Electrochemical Transistor Based on Photo-annealed Plasmonic Gold Nanoparticle-Doped PEDOT:PSS

Zhang

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Organic electrochemical transistors (OECTs), particularly the ones based on PEDOT:PSS, are excellent candidates for chemical and biological sensing because of their unique advantages. Improving the sensitivity and stability of OECTs is crucially important for practical applications. Herein, the transconductance of OECT is improved by 8-fold to 14.9 mS by doping the PEDOT:PSS channel with plasmonic gold nanoparticles (AuNPs) using a solution-based process followed by photo annealing. In addition, the OECT also possesses high flexibility and cyclic stability. It is revealed that the doping of AuNPs increases the conductivity of PEDOT:PSS and the photo annealing improves the crystallinity of the PEDOT:PSS channel and the interaction between AuNPs and PEDOT:PSS. These changes lead to the increase in transconductance and cyclic stability. The prepared OECTs are also demonstrated to be effective in sensitive detection of glucose within a wide concentration range of 10 nM−1 mM. Our OECTs based on photo-annealed plasmonic AuNP-doped PEDOT:PSS may find great applications in chemical and biological sensing, and this strategy may be extended to prepare many other high-performance OECT-based devices.

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“…The oxygen dissolved in the resins can react with the excited species and radicals, leading to a loss in efficiency of the photopolymerization (speed and final conversion) and the appearance of a polymerization threshold. However, this phenomenon, which appears undesirable, can help stabilize formulation and can also be used to confine the polymerized zone spatially at the micrometric [23,24] or even nanometric scale [25][26][27][28][29]. Therefore, it is used in various 3D printing configurations.…”

Section: B Radical Photopolymerizationmentioning

confidence: 99%

3D printing of optical materials by processes based on photopolymerization: materials, technologies, and recent advances

Geisler

Lecompère²,

Soppera

2022

Photon. Res.

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3D printing technologies have expanded beyond the research laboratories where they were used solely for prototyping and have become widely used in several industries. The production of custom 3D objects has significant potential in optical applications. However, this necessitates extremely specific material properties, such as transparency, homogeneity, birefringence, and surface finish. Currently, the majority of optical objects are manufactured using plastics. Moreover, the 3D printing processes using polymers to produce optical objects have significant advantages, such as limited wastage, short manufacturing time, and easy customization. However, despite extensive efforts, no technology has achieved the production of objects perfectly suited for optical applications. The objective of this review is to summarize recent advances in the field of 3D printing for optics, with an emphasis on specific developments for dedicated applications, and to explore new candidate processes.

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Plasmonic Au Nanoparticle Arrays for Monitoring Photopolymerization at the Nanoscale

Cited by 15 publications

References 27 publications

In Situ Monitoring of Scale Effects on Phase Selection and Plasmonic Shifts during the Growth of AgCu Alloy Nanostructures for Anticounterfeiting Applications

In Situ Monitoring of Scale Effects on Phase Selection and Plasmonic Shifts during the Growth of AgCu Alloy Nanostructures for Anticounterfeiting Applications

High-Performance Organic Electrochemical Transistor Based on Photo-annealed Plasmonic Gold Nanoparticle-Doped PEDOT:PSS

3D printing of optical materials by processes based on photopolymerization: materials, technologies, and recent advances

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