Menu

Javascript is not activated in your browser. This website needs javascript activated to work properly.
You are here

Controllable formation of high density SERS-active silver nanoprism layers on hybrid silica-APTES coatings

Author:
  • J. Pilipavicius
  • R. Kaleinikaite
  • Milda Pucetaite
  • Martynas Velicka
  • A. Kareiva
  • Aldona Beganskiene
Publishing year: 2016
Language: English
Pages: 134-140
Publication/Series: Applied Surface Science
Volume: 377
Document type: Journal article
Publisher: Elsevier

Abstract english

In this work sol-gel process for preparation of the uniform hybrid silica-3-aminopropyltriethoxysilane (APTES) coatings on glass surface is presented from mechanistic point of view. The suggested synthetic approach is straightforward, scalable and provides the means to tune the amount of amino groups on the surface simply by changing concentration of APTES in the initial sol. Deposition rate of different size silver nanoprisms (AgNPRs) on hybrid silica coatings of various amounts of APTES were studied and their performance as SERS materials were probed. The acquired data shows that the deposition rate of AgNPRs can be tuned by changing the amount of APTES. The optimal amount of APTES was found to be crucial for successful AgNPRs assembly and subsequent uniformity of the final SERS substrate—too high APTES content may result in rapid non-stable aggregation and non-uniform assembly process. SERS study revealed that SERS enhancement is the strongest at moderate AgNPRs aggregation level whereas it significantly drops at high aggregation levels.

Other

Published
  • ISSN: 0169-4332
Milda Pucetaite. Photo.
E-mail: milda [dot] pucetaite [at] cec [dot] lu [dot] se

Researcher

Centre for Environmental and Climate Research (CEC)

+46 46 222 47 80

E236

Ekologihuset, Sölvegatan 37, Lund

50

Centre for Environmental and Climate Research, CEC

Sölvegatan 37
223 62 Lund, Sweden

Visiting address
The Ecology Building, Sölvegatan 37, Lund

About this website