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A sol-gel derived AgCl photochromic coating on glass for SERS chemical sensor application

Publication ,  Journal Article
Volkan, M; Stokes, DL; Vo-Dinh, T
Published in: Sensors and Actuators, B: Chemical
May 13, 2005

A new optically translucent material has been prepared that acts as a substrate for surface-enhanced Raman spectroscopy. This material is a silica matrix, synthesized by the sol-gel method and containing in situ precipitated AgCl particles which serve as precursors for nanoparticles of elemental silver. Reduction of AgCl to silver nanoparticles is achieved by UV irradiation. The SERS-active medium was distributed on glass supports (cover glass slips, 0.5 mm thick), hence producing thin, sturdy, and optically translucent substrates. SERS activity was evaluated by using brilliant cresyl blue and 1-aminopyrene as model compounds. Parameters including the sol-gel composition, the aging period of the sol-gel, and the UV exposure time for photoreduction of the SERS medium were thoroughly investigated. These new substrates have exhibited long shelf lives; furthermore, they can be easily regenerated through a redox cycle involving chemical oxidation and photoreduction steps. In addition to use in direct chemical analysis, this novel type of SERS substrate can be used for indirect monitoring of HNO3 acid vapor via measurement of the SERS signal of 1-aminoyrene, which is attenuated as the substrate is oxidized by the acid vapor. © 2004 Elsevier B.V. All rights reserved.

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Published In

Sensors and Actuators, B: Chemical

DOI

ISSN

0925-4005

Publication Date

May 13, 2005

Volume

106

Issue

2

Start / End Page

660 / 667

Related Subject Headings

  • Analytical Chemistry
  • 4016 Materials engineering
  • 4004 Chemical engineering
  • 3401 Analytical chemistry
  • 0912 Materials Engineering
  • 0301 Analytical Chemistry
  • 0205 Optical Physics
 

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Volkan, M., Stokes, D. L., & Vo-Dinh, T. (2005). A sol-gel derived AgCl photochromic coating on glass for SERS chemical sensor application. Sensors and Actuators, B: Chemical, 106(2), 660–667. https://doi.org/10.1016/j.snb.2004.09.019
Volkan, M., D. L. Stokes, and T. Vo-Dinh. “A sol-gel derived AgCl photochromic coating on glass for SERS chemical sensor application.” Sensors and Actuators, B: Chemical 106, no. 2 (May 13, 2005): 660–67. https://doi.org/10.1016/j.snb.2004.09.019.
Volkan M, Stokes DL, Vo-Dinh T. A sol-gel derived AgCl photochromic coating on glass for SERS chemical sensor application. Sensors and Actuators, B: Chemical. 2005 May 13;106(2):660–7.
Volkan, M., et al. “A sol-gel derived AgCl photochromic coating on glass for SERS chemical sensor application.” Sensors and Actuators, B: Chemical, vol. 106, no. 2, May 2005, pp. 660–67. Scopus, doi:10.1016/j.snb.2004.09.019.
Volkan M, Stokes DL, Vo-Dinh T. A sol-gel derived AgCl photochromic coating on glass for SERS chemical sensor application. Sensors and Actuators, B: Chemical. 2005 May 13;106(2):660–667.
Journal cover image

Published In

Sensors and Actuators, B: Chemical

DOI

ISSN

0925-4005

Publication Date

May 13, 2005

Volume

106

Issue

2

Start / End Page

660 / 667

Related Subject Headings

  • Analytical Chemistry
  • 4016 Materials engineering
  • 4004 Chemical engineering
  • 3401 Analytical chemistry
  • 0912 Materials Engineering
  • 0301 Analytical Chemistry
  • 0205 Optical Physics