Surface plasmon polaritons in a composite system of porous silicon and gold

Vainshtein, J. S.; Goryachev, D. N.; Ken, O. S.; Sreseli, O. M.

doi:10.1134/s1063782615040260

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…Metal filling of luminescent porous silicon can influence the optical properties of the material. The deposition of Au nanoparticles within the pores results in the excitation of surface plasmon polaritons and an increase of the photoluminescence intensity is observed [54]. Considering the interaction between porous silicon and Au nanoparticles on its surface, not only plasmon effects influence the optical properties but also the porosity and surface chemistry of the nanocomposite.…”

Section: Optical Properties Of Microporous Siliconmentioning

confidence: 99%

Metal Filled Nanostructured Silicon With Respect to Magnetic and Optical Properties

Granitzer

Rumpf

2020

Front. Phys.

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Within this work the utilization of nanostructured silicon as host material for filling with various magnetic nanostructures is reviewed whereas the magnetic and optical properties of the gained composite systems are elucidated. The metal filling of the pores is mainly performed by electroless deposition or by electrodeposition which is discussed by means of some examples. Furthermore, two different types of porous silicon (PSi) morphology are used for the deposition procedure. On the one hand microporous silicon offering luminescence in the visible range is utilized as template material. It offers a branched morphology with a structure size between 2 and 5 nm. In this case not only the magnetic response is investigated but also the influence of the metal filling on the optical properties. On the other hand mesoporous and macroporous silicon in it's low pore regime is employed which offers straight pores with diameters up to 90 nm. In this case the magnetic response strongly depends on the size, the geometry and the spatial distribution of the metal deposits within the pores. A crucial role plays also the morphology of the porous silicon, especially the distance between adjacent pores which is an important parameter regarding magnetic interactions.

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Section: Optical Properties Of Microporous Siliconmentioning

confidence: 99%

Metal Filled Nanostructured Silicon With Respect to Magnetic and Optical Properties

Granitzer

Rumpf

2020

Front. Phys.

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“…Firstly pore filling experiments with various metals have been carried out to improve the electrical contact to enhance the electroluminescence efficiency (14). The deposition of metal nanoparticles within the pores is also used to achieve an excitation of surface plasmon polaritons and thus an increase of the photoluminescence intensity (15). Metal filling of mPSi is challenging due to the small pore-size.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Filling of Microporous Silicon: An Interlink Between Optical and Magnetic Behavior

et al. 2020

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In the frame of this work microporous silicon (mPSi) is filled with magnetic metals (Ni, Co) resulting in a composite system with specific magnetic properties corresponding to its branched morphology. The results are compared with mesoporous silicon (PSi) loaded with Ni nanoparticles (NPs) of comparable size. The two systems offer drastic differences in their magnetic response. Furthermore mPSi offers luminescence in the visible range, whereat this behavior is due to the small structure size in the range of a few nanometers (2 – 5 nm). The morphology of mesoporous silicon shows straight pores with a diameter up to 50 nm. Due to the different template morphology the responding magnetic behavior shows distinct properties related to the two systems, although the size of the metal deposits is in a similar size range. The Ni loaded mPSi system merges optical and magnetic properties leading to a nanocomposite appropriate for possible magneto-optical devices.

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Surface plasmon polaritons in a composite system of porous silicon and gold

Cited by 2 publications

References 9 publications

Metal Filled Nanostructured Silicon With Respect to Magnetic and Optical Properties

Metal Filled Nanostructured Silicon With Respect to Magnetic and Optical Properties

Magnetic Filling of Microporous Silicon: An Interlink Between Optical and Magnetic Behavior

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