Facile processing of Si-Cu core-shell as potential meta-atom materials

M. A. Salim, Halina Misran, Siti Zubaidah Othman, N. N.H. Shah, N. A.A. Razak, H. Abdullah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Monodispersed spheres of Si-Cu core-shell nanocomposite with silica as core and copper as shell were successfully synthesized by a modified two-step synthesis method. Spherical particles of silica core were first synthesized using a modified Stöber method using nonsurfactant template. The obtained monodispersed silica spheres were successfully coated with copper through a modified sol-gel method employing nonsurfactant template. A renewable nonsurfactant template (decyl alcohol) was successfully used to modify the silica surfaces. To study the effect of nonsurfactant template on copper deposition onto silica surfaces, various compositions of nonsurfactant template were used. The X-ray diffraction patterns of core-shell nanocomposite exhibited monoclinic copper crystalline phase and a broad peak characteristic of amorphous silica networks. The results from field emission scanning electron microscopy (FE-SEM) suggested that both monodispersed silica core as well as Si-Cu core-shell particle sizes were at ca. 560 nm. UV-Vis spectrum of Si-Cu core-shell exhibited a broad absorption peak centered at ca. 394 nm suggesting optical properties of these Si-Cu nanocomposite as potential meta-atom materials.

Original languageEnglish
Title of host publicationICP 2012 - 3rd International Conference on Photonics 2012, Proceedings
Pages159-162
Number of pages4
DOIs
Publication statusPublished - 01 Dec 2012
Event3rd International Conference on Photonics, ICP 2012 - Penang, Malaysia
Duration: 01 Oct 201203 Oct 2012

Publication series

NameICP 2012 - 3rd International Conference on Photonics 2012, Proceedings

Other

Other3rd International Conference on Photonics, ICP 2012
CountryMalaysia
CityPenang
Period01/10/1203/10/12

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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    Salim, M. A., Misran, H., Othman, S. Z., Shah, N. N. H., Razak, N. A. A., & Abdullah, H. (2012). Facile processing of Si-Cu core-shell as potential meta-atom materials. In ICP 2012 - 3rd International Conference on Photonics 2012, Proceedings (pp. 159-162). [6379878] (ICP 2012 - 3rd International Conference on Photonics 2012, Proceedings). https://doi.org/10.1109/ICP.2012.6379878