Surface enhanced Raman scattering effects of silver colloids with different shapes |
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Authors: | Zhang Jiatao Li Xiaolin Sun Xiaoming Li Yadong |
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Affiliation: | Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China. |
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Abstract: | By solution-based method, three kinds of silver colloids, self-assembled nanowires, triangular nanoplates and quasispherical nanoparticles, have been synthesized. TEM studies revealed that they exposed different crystal planes, such as {111} crystal planes to triangular nanoplates, mainly {100} and {111} planes to self-assembly nanowires. Hereby, do the distinct shapes and crystal planes have an impact on the surface enhanced Raman scattering (SERS)? The great differences of the SERS spectra of rhodamine B at these Ag colloids confirmed that the shapes and crystal planes of silver have great effect on Raman enhancement, especially the crystal planes. |
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