Wet non-thermal integration of nano binary silicon-gold system with strong plasmonic and luminescent characteristics

Brian Enders, Adem Kocyigit, Ersin Bahceci, Noha Elhalawany, Ammar Nayfeh, Owrad Alshammari, Mohamad Alsalhi, Munir H Nayfeh

Research output: Contribution to journalArticle

Abstract

We report on a wet none thermal integration of the binary silicon-gold nano system. Instead of thermally based gas-solid procedures, we use charge exchange/injection-based procedures in a chemical wet environment. SEM and TEM imaging and EDX show 0-D gold-silicon coreshell structures with diameters ranging from 6 to 500 nm in addition to a variety of silicon and gold nano structures. Optical and florescence spectroscopy show that colloids exhibit strong red luminescence and plasmonic resonance in the visible. Mie theory analysis of light scattering is in agreement with the optical observation. The results and procedures are discussed in terms of the relative electron/hole affinity, Schottky potential barrier, strength of the metal-silicon bond, as well as the surface diffusion of metal atoms or clusters on the interface of the constituent materials. Integration of gold and silicon, at the nanoscale in the form core-shell architecture affords the functionalities and attributes of plasmonic light scattering imaging and fluorescence imaging that would be useful for a wide variety of applications, including optical filters, sensing, therapeutics and tracking, and cancer therapy.

Original languageEnglish (US)
Article number095039
JournalAIP Advances
Volume9
Issue number9
DOIs
StatePublished - Sep 1 2019

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gold
silicon
light scattering
optical filters
Mie scattering
surface diffusion
charge exchange
metals
colloids
affinity
therapy
cancer
luminescence
injection
fluorescence
transmission electron microscopy
scanning electron microscopy
gases
spectroscopy
atoms

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Wet non-thermal integration of nano binary silicon-gold system with strong plasmonic and luminescent characteristics. / Enders, Brian; Kocyigit, Adem; Bahceci, Ersin; Elhalawany, Noha; Nayfeh, Ammar; Alshammari, Owrad; Alsalhi, Mohamad; Nayfeh, Munir H.

In: AIP Advances, Vol. 9, No. 9, 095039, 01.09.2019.

Research output: Contribution to journalArticle

Enders, B, Kocyigit, A, Bahceci, E, Elhalawany, N, Nayfeh, A, Alshammari, O, Alsalhi, M & Nayfeh, MH 2019, 'Wet non-thermal integration of nano binary silicon-gold system with strong plasmonic and luminescent characteristics', AIP Advances, vol. 9, no. 9, 095039. https://doi.org/10.1063/1.5121153
Enders, Brian ; Kocyigit, Adem ; Bahceci, Ersin ; Elhalawany, Noha ; Nayfeh, Ammar ; Alshammari, Owrad ; Alsalhi, Mohamad ; Nayfeh, Munir H. / Wet non-thermal integration of nano binary silicon-gold system with strong plasmonic and luminescent characteristics. In: AIP Advances. 2019 ; Vol. 9, No. 9.
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AU - Nayfeh, Ammar

AU - Alshammari, Owrad

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