Optical Extinction of Metal Nanoparticles Synthesized in Polymer by Ion Implantation

Степанов, А. Л.

doi:10.1002/0471695432.ch8

Cited by 17 publications

(11 citation statements)

References 34 publications

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“…Application of UV-visible optical absorption spectroscopy for investigation of ion-implanted polymeric materials has already been reported for the Ag + -implanted PMMA, ORMOCER, and Epoxy resin [31,34,[56][57][58][59] as well as for the C + , N + , and Ar + -implanted PMMA [29,30]. It has been suggested by the authors that ion irradiation creates compact carbonaceous clusters in polymers, which may also be responsible for a narrowing of optical band gap, enhanced electrical conductivity, and increasing optical absorbance (for example, see [31,34,56]). In the case of the investigated B:PMMA, it is found the gradual increase of absorbance at lower fluences (<10 16 ions/cm 2 ) and saturation of absorbance at higher fluences (>10 16 ions/cm 2 ) as shown in Figure 6 [36].…”

Section: Optical Spectroscopy Datamentioning

confidence: 99%

“…( [26][27][28][29][30] and references therein). PMMA was also a subject for implantation with Ag + -ions [9,31] to fabricate composite structures with silver nanoparticles for plasmonic applications as well as for implantation with C + , N + and Ar + -ions [29,30] that may find an extensive application in fabrication of various optoelectronic devices including organic light-emitting diodes, backlight components in liquid crystal display systems, diffractive elements, solar cells, waveguides, microcomponents for integrated optical circuits, etc. The well-known key performance and important characteristics of PMMA such as a long-term stability in outdoor environments, excellent surface hardness, light weight, outstanding transmittance and optical clarity, optical design flexibility and control, etc.…”

Section: Introductionmentioning

confidence: 99%

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Ion-Irradiation-Induced Carbon Nanostructures in Optoelectronic Polymer Materials

Kavetskyy¹,

Степанов²

2016

Radiation Effects in Materials

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The recent results obtained on the ion-irradiation-induced carbon nanostructures in optoelectronic polymer materials exemplified by boron-ion-implanted polymethylmethacrylate " PMM" with an energy of keV, ion doses from . × to . × ions/ cm , and current density < μ"/cm are reviewed. The positron annihilation spectroscopy slow positron beam spectroscopy based on Doppler broadening of positron annihilation gamma rays as a function of incident positron energy and positron annihilation lifetime at a positron energy of . keV, and temperature-dependent positron annihilation lifetime spectroscopy , optical UV-visible spectroscopy, Raman spectroscopy, electrical current voltage measurements, and nanoindentation test are chosen as the main experimental tools for the investigation of low-energy ion-induced processes in " PMM". The formation of carbon nanostructures is confirmed for the samples irradiated with higher ion fluences > ions/cm and the experimental results of the comprehensive study are found to be in a good agreement with SRIM stopping and range of ions in matter simulation results.

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Section: Optical Spectroscopy Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ion-Irradiation-Induced Carbon Nanostructures in Optoelectronic Polymer Materials

Kavetskyy¹,

Степанов²

2016

Radiation Effects in Materials

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“…Stepanov et al showed that ion fluence played important role in the synthesis [17]: at low ion fluence, the stopped ions are dispersed in the polymer matrix; when ion fluence reaches the critical value ($1 Â 10 15 cm À2 ), the solubility of metallic implants in localized surface area of polymer is exceeded, leading to the nucleation and growth of metal nanoparticles; when ion fluence is even higher, the synthesized metal nanoparticles may coalesce to form metal aggregates with larger size or quasi-continuous films via Ostwald ripening in the surface layer. The whole process is schematically shown in Fig.…”

Section: Microstructure Of Ti-ps Nanocompositesmentioning

confidence: 99%

Ti–PS nanocomposites by plasma immersion ion implantation and deposition

Han

Tay

2009

Nuclear Instruments and Methods in Physics Research Section B:

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“…[4][5][6] The formation of NPs by the ion implantation technique in the layer depends on its own properties, as well as on the ion implantation parameters (ion dose and energy, target and annealing temperature, etc.). 7 Generally, the depth distribution of implanted ions and their penetration in the layer-target are studied by various physical profiling techniques like Rutherford Backscattering Spectroscopy (RBS) or Secondary Ion Mass Spectroscopy (SIMS) and by computer simulation such as SRIM. 8 However, these methods are not able to provide other relevant information, which could be helpful to optimize the optical properties of the material.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic properties of implanted Ag nanoparticles in SiO2 thin layer by spectroscopic ellipsometry

Battie

Naciri

Chaoui

et al. 2017

Journal of Applied Physics

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We report an uncommon study of the insertion of distributions of both volume fraction and depolarization factors in the modeling of the plasmonic properties of implanted Ag nanoparticles (Ag-NPs) in a SiO2 layer when using spectroscopic ellipsometry (SE) characterization. The Ag-NPs were embedded in the SiO2 matrix by Ag+ ion implantation at various doses of 0.5 × 1016, 1 × 1016, 2 × 1016, and 5 × 1016 ions cm−2. The formation of the Ag-NPs in a host matrix of SiO2 was controlled by transmission electron microscopy (TEM). The Ag-NPs are self-organized in the layer, and their mean radius ranges between 2 and 20 nm. The optical properties of layers were extracted by modeling the SE parameters by taking into account the depth profile concentration of Ag-NPs. The mixture of SiO2 and Ag-NP inclusions was modeled as an effective medium according to the shape distributed effective medium theory (SDEMT). In addition to the optical responses, it is shown that this model enables the explanation of the impact of NP shape distribution on the plasmon band and provides precious information about the NP shape characteristics. A good agreement was obtained between ellipsometry and TEM results. The distribution of the volume fraction in the film was found to lead to a gradient of effective dielectric function which was determined by the SDEMT model. The effective dielectric function reveals distinct Ag plasmon resonance varying as the Ag+ ions dose is varied. The real part of the dielectric function shows a significant variation around the plasmon resonance in accordance with the Kramers-Kronig equations. All determined optical parameters by SDEMT are provided and discussed. We highlight that SE combined with SDEMT calculations can be considered as a reliable tool for the determination of the NP shape and volume fraction distributions without the need of TEM.

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Optical Extinction of Metal Nanoparticles Synthesized in Polymer by Ion Implantation

Cited by 17 publications

References 34 publications

Ion-Irradiation-Induced Carbon Nanostructures in Optoelectronic Polymer Materials

Ion-Irradiation-Induced Carbon Nanostructures in Optoelectronic Polymer Materials

Ti–PS nanocomposites by plasma immersion ion implantation and deposition

Plasmonic properties of implanted Ag nanoparticles in SiO2 thin layer by spectroscopic ellipsometry

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