Silver particles embedded in silicon: The fabrication process and their application in surface enhanced Raman scattering (SERS)

Ermina, Anna; Solodovchenko, Nikolay; Prigoda, Kristina; Левицкий, В. С.; Bolshakov, Vladimir; Maximov, Maxim; Koshtyal, Yury; Pavlov, S. I.; Tolmachev, V. A.; Zharova, Yu. A.

doi:10.1016/j.apsusc.2022.155146

Cited by 14 publications

(2 citation statements)

References 32 publications

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“…However, trapping target molecules close to the plasmonic hot spots generated by nanostructures prolongs the accumulation time required to detect molecules in dilute solutions. [ 6 ] To address this limitation, several methods for enhancing the effectiveness of the interactions between molecules and hot spots have been developed by designing nanostructures, such as nanospheres, [ 7 ] nanogaps, [ 8 ] nanopores, [ 9 ] nanopillars, [ 10 − 12 ] and nanotubes. [ 13 ] Furthermore, several advanced techniques including tip‐enhanced Raman scattering, [ 14 ] shell‐isolated nanoparticle‐enhanced Raman spectroscopy (SHINERS), [ 15 ] and liquid interface‐assisted SERS (LI‐SERS) have been employed in SERS.…”

Section: Introductionmentioning

confidence: 99%

Plasma‐Etched Nanograss Surface without Lithographic Patterning to Immobilize Water Droplet for Highly Sensitive Raman Sensing

Ho,

Yang,

Lin

et al. 2023

Adv Materials Inter

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The development of reliable, cost‐effective molecular detection at the attomolar level on analyte‐immobilizing surfaces fabricated without lithographic patterning remains a major challenge in chemical sensing technology. This issue is addressed using custom‐designed adhesive superhydrophobic silicon nanograss surfaces produced via plasma etching. When applied to ultrasensitive surface‐enhanced Raman scattering, the nanograss surface enables effective immobilization of water droplets containing Ag nanoparticles and R6G target molecules. Upon water evaporation, the R6G analytes are confined at the edge of the self‐organized coffee‐ring‐like stains with the plasmonic hot spots of the Ag nanoparticles, thus providing a reliable Raman scattering platform for detecting trace analytes. Even at an ultralow concentration of 10−16 m, the corresponding relative standard deviation is 17.57%. A novel plasma‐enabled approach for precise interface nanostructuring, potentially leading to unprecedented capabilities in molecular‐level sensing technologies, is presented.

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Section: Introductionmentioning

confidence: 99%

Plasma‐Etched Nanograss Surface without Lithographic Patterning to Immobilize Water Droplet for Highly Sensitive Raman Sensing

Ho,

Yang,

Lin

et al. 2023

Adv Materials Inter

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“…Данный метод позволяет детектировать и исследовать сверхмалое количество вещества (аналита) вплоть до отдельных молекул, так как поперечное сечение КРС аналита на поверхности или вблизи металла увеличивается на порядки [4]. ГКР-активные подложки на основе кремния и благородных металлов обеспечивают существенное электромагнитное усиление КРС, связанное с возбуждением ЛПР [5][6][7]. Для достижения максимального усиления необходимо, чтобы положение максимума полосы поглощения аналита было близко к спектральному положению ЛПР, которое в свою очередь зависит от морфологии структуры и диэлектрической проницаемости окружающей среды.…”

Section: Introductionunclassified

ГКР-активные подложки на основе внедренных наночастиц Ag в объем c-Si: моделирование, технология, применение

Ермина¹,

Solodovchenko²,

Prigoda³

et al. 2023

Физика И Техника Полупроводников

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A simple method for obtaining SiO2 : Ag : Si and Ag : Si hybrid nanostructures is presented. High-temperature treatment of an island film of Ag on the surface of c-Si makes it possible to preserve the plasmonic properties of Ag nanoparticles and protect them from external influences by coating them with a thermally grown layer of SiO2. The calculation of the electric field strength distribution in the structure with embedded Ag nanoparticles in c-Si demonstrates the presence of intrinsic “hot spots” at the corners of the nanoparticles, which leads to a maximum enhancement factor (~10^6) of Raman scattering. scattering. A numerical calculation of the dependence of the spectral position of a localized plasmon resonance on the geometry of structures can serve as a basis for their design in the future. Surface-enhanced Raman scattering spectroscopy showed reliable detection of the methyl orange from an aqueous solution at a concentration of 10^-5 M.

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Unique high-performance metal-nanoparticle-free SERS substrate with rapid-fabricated hybrid 3D-Nano-Micro-Cavities anodic alumina for label-free detection

Chung

2023

Applied Surface Science

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Silver particles embedded in silicon: The fabrication process and their application in surface enhanced Raman scattering (SERS)

Cited by 14 publications

References 32 publications

Plasma‐Etched Nanograss Surface without Lithographic Patterning to Immobilize Water Droplet for Highly Sensitive Raman Sensing

Plasma‐Etched Nanograss Surface without Lithographic Patterning to Immobilize Water Droplet for Highly Sensitive Raman Sensing

ГКР-активные подложки на основе внедренных наночастиц Ag в объем c-Si: моделирование, технология, применение

Unique high-performance metal-nanoparticle-free SERS substrate with rapid-fabricated hybrid 3D-Nano-Micro-Cavities anodic alumina for label-free detection

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