Abstract

Silver-coated zeolite A and zeolite NaX crystal films prepared by vacuum deposition were investigated as surface-enhanced Raman scattering (SERS) substrates. The substrates were active for the enhancement of Raman scattering from uranyl ions. A detection limit of 10^-5 M for uranyl was obtained using silver-coated zeolite A films. One advantage of these zeolite-based substrates is that the negatively charged microporous framework provides the selectivity for adsorption based on static electric charges. The SERS effects of positively charged uranyl ions and neutrally charged benzoic acid were compared. For the zeolite A substrate, there was a 100-times-greater sensitivity.

High-performance surface-enhanced Raman scattering substrate prepared by self-assembling of silver nanoparticles into the nanogaps of silver nanoislands

Jiamin Quan, Yong Zhu, Jie Zhang, Junyin Li, and Ning Wang
Appl. Opt. 56(20) 5751-5760 (2017)

Surface-enhanced Raman scattering from silver particles on polymer-replica substrates

R. M. Hart, J. G. Bergman, and A. Wokaun
Opt. Lett. 7(3) 105-107 (1982)

Excitation spectra of surface-enhanced Raman scattering on silver-island films

D. A. Weitz, S. Garoff, and T. J. Gramila
Opt. Lett. 7(4) 168-170 (1982)

Silver holographic gratings as substrates for surface-enhanced Raman scattering gas analysis

Dmitry V. Petrov, Matvey A. Kostenko, and Alexey A. Shcherbakov
Appl. Opt. 59(9) 2929-2934 (2020)

Optimization of Ag coated hydrogen silsesquioxane square array hybrid structure design for surface-enhanced Raman scattering substrate

Hong Wang, Zihang Huo, Zihao Zhang, Shaofei Chen, and Shaoji Jiang
Opt. Express 26(2) 1097-1107 (2018)