.Optical properties of dyes with/without metal nanoparticles doped in a highly ordered nanostructure[J].Optoelectronics Letters,2011,7(2):88-91 |
Optical properties of dyes with/without metal nanoparticles doped in a highly ordered nanostructure |
孙立萍 |
Key Laboratory on Weak-Light Nonlinear Photonics of Education Ministry of China, TEDA School of Applied Physics and School of Physics, Nankai University; |
Abstract: |
Highly ordered nanocomposite arrays of Rh6G-Au-AAO are formed by filling anodized aluminum oxide (AAO) with Rhodamine 6G (Rh6G)
and gold nanoparticles. The optical properties of Rh6G-Au-AAO are studied by visible absorptive and fluorescent spectroscopy.
Compared with the fluorescence spectra of Rh6G-Au in the solution environment, the fluorescence peak intensities of Rh6G-Au-AAO
are significantly enhanced, the maximum enhancement rate is 5.5, and a constant blue shift of ∼12 nm of peak positions is
presented. The effects come from the spatial confinement of AAO and the inhibition of the fluorescence quenching effect induced
by gold nanoparticles. The results show that the nanocomposite structures of fluorescence molecules-metal nanoparticles-AAO
have a considerable potential in engineering molecular assemblies and creating functional materials of superior properties
for future nanophotonics. |
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