Optical studies of Au@SnO2/poly-(vinyl) alcohol core-shell nanoparticle thin films

Suraj Kumar Tripathy, Jin Nyoung Jo, O. Kwang-Joong, Sang Do Han, In Hwan Lee, Yeon Tae Yu

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Au@SnO2 core-shell nanoparticles dispersed in poly-(vinyl) alcohol films were fabricated on glass substrate by employing dip-coating technique. The structure and morphology of the films were investigated by X-ray diffraction technique and field-emission transmission electron microscopy, respectively. Optical properties of the films were studied by UV-visible spectroscopy. Surface plasmon spectrum of the core-shell nanoparticles film remained unaltered with increase in the number of layers. However, gold nanoparticles films have shown peak broadening and shifting with increase in the number of layers. Our investigations showed that the surface plasmon band of the gold nanoparticles could be tailored and preserved by controlled deposition of tin dioxide shell.

Original languageEnglish
Pages (from-to)758-764
Number of pages7
JournalJournal of Materials Science: Materials in Electronics
Volume21
Issue number8
DOIs
Publication statusPublished - 2010 Aug

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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