Radiolytic formation of highly luminescent triangular Ag nanocolloids

Alam Abedini, P. Susthitha Menon N V Visvanathan, Abdul Razak Daud, Muhammad Azmi Abdul Hamid, Sahbudin Shaari

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this work, luminescent triangular silver nanoparticles were synthesized by radiolytic reduction method. The results showed that by variation of irradiation dose, morphology of silver nanoparticles can be converted from spherical to triangular. These shape variations mainly arise from competition between adsorption rate of polymer chains on (111) facets and reduction rate of the Ag+ ions along (110) facets during increasing dose. Furthermore, the dramatically enhanced photoluminescence spectra were observed from triangular Ag nanoparticles. This unusual behavior can be explained by excitation of dipolar and quadrupolar resonance in triangular nanoparticles which increase the electric fields at the surface.

Original languageEnglish
Pages (from-to)985-991
Number of pages7
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume307
Issue number2
DOIs
Publication statusPublished - 1 Feb 2016

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Nanoparticles
Silver
Adsorption
Dosimetry
Photoluminescence
Polymers
Electric fields
Irradiation
Ions

Keywords

  • Luminescent colloids
  • Radiolytic reduction
  • Shape transition
  • Triangular silver nanoparticles

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Health, Toxicology and Mutagenesis
  • Pollution
  • Public Health, Environmental and Occupational Health
  • Spectroscopy
  • Radiology Nuclear Medicine and imaging

Cite this

Radiolytic formation of highly luminescent triangular Ag nanocolloids. / Abedini, Alam; N V Visvanathan, P. Susthitha Menon; Daud, Abdul Razak; Abdul Hamid, Muhammad Azmi; Shaari, Sahbudin.

In: Journal of Radioanalytical and Nuclear Chemistry, Vol. 307, No. 2, 01.02.2016, p. 985-991.

Research output: Contribution to journalArticle

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AU - Shaari, Sahbudin

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