Dye-doped polystyrene-coated gold nanorods: towards wavelength tuneable SPASER

Peng Gu; David J S Birch; Yu Chen

doi:10.1088/2050-6120/2/2/024004

Dye-doped polystyrene-coated gold nanorods: towards wavelength tuneable SPASER

Peng Gu, David J S Birch, Yu Chen

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Abstract

We present the synthesis and photophysical study of a new type of fluorescent gold core–polystyrene shell nanoparticles fabricated by emulsion polymerization at neutral pH. The thickness of the PS shell can be controlled by varying the synthesis conditions. Decrease in the fluorescence intensity and lifetime of Rhodamine 800 (Rh800) were observed, indicating energy transfer from Rh800 to gold nanorods. This study suggests the possibility of exploiting dye-doped polystyrene shells as a gain medium to compensate for the energy loss of longitudinal surface plasmon resonance of gold nanorods and paving the way for eventually realizing a SPASER (surface plasmon amplification by stimulated emission of radiation) optical source of tuneable wavelength.

Original language	English
Article number	024004
Number of pages	7
Journal	Methods and Applications in Fluorescence
Volume	2
Issue number	2
DOIs	https://doi.org/10.1088/2050-6120/2/2/024004
Publication status	Published - 9 Apr 2014

Keywords

dye-doped
polystyrene-coated
gold nanorods
wavelength tuneable
SPASER
core-shell particles
energy transfer

Access to Document

10.1088/2050-6120/2/2/024004

Gu-etal-MAF2014-dye-drop-polystyrene-coated-gold-nanorodsSubmitted manuscript, 579 KB

http://iopscience.iop.org/2050-6120/

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Gu, P., Birch, D. J. S., & Chen, Y. (2014). Dye-doped polystyrene-coated gold nanorods: towards wavelength tuneable SPASER. Methods and Applications in Fluorescence , 2(2), [024004]. https://doi.org/10.1088/2050-6120/2/2/024004

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KW - polystyrene-coated

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