Journal
OPTICAL MATERIALS
Volume 33, Issue 6, Pages 920-923Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2011.01.023
Keywords
Hyper Rayleigh scattering; Surface enhanced; Silver nanoparticles; Chemical effect
Categories
Funding
- Natural Science Foundation of China (NSFC) [60708024, 60877024]
- Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) [20070286058, 20090092110015]
Ask authors/readers for more resources
We report on the observation of chemical effects in surface enhanced hyper Rayleigh scattering (SEHRS), using silver nanoparticles adsorbed with stilbazolium dyes. The experimental results show that the enhancement factors varied with different donor structures of the dyes, which cannot be explained only according to the electromagnetic effect. Using the extinction spectra and surface enhanced Raman scattering spectra (SERS) to provide the complementary results, we deduce that chemical effects also play an important role in SEHRS in addition to the electromagnetic effect. The chemical effects may be related with the Ag-adsorbate charge transfer transition, similar to the mechanism in SERS. (C) 2011 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available