Gold nanoparticles: BSA (Bovine Serum Albumin) coating and X-ray irradiation produce variable-spectrum photoluminescence

Kuo Hao Lee, Sheng Feng Lai, Yan Cheng Lin, Wu-Ching Chou, Edwin B.L. Ong, Hui Ru Tan, Eng Soon Tok, C. S. Yang, G. Margaritondo, Y. Hwu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We show that by using different x-ray irradiation times of BSA-coated Au nanoparticles (NPs) we can change their ultraviolet-stimulated photoluminescence and shift the spectral weight over the visible spectral range. This is due to the interplay of two emission bands, one due to BSA and the other related to gold. The emission properties did not change with time over a period of several months.

Original languageEnglish
Pages (from-to)582-586
Number of pages5
JournalMaterials Chemistry and Physics
Volume149
DOIs
StatePublished - 15 Jan 2015

Keywords

  • Irradiation effect
  • Luminescence
  • Nanostructures
  • Visible and ultraviolet spectrometers

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