SERS used to study the effect of Langmuir-Blodgett spacer layers on metal surface

Bing Kun Yu; Yu Li; Yingting Wang

doi:10.1117/12.50525

1 December 1991 SERS used to study the effect of Langmuir-Blodgett spacer layers on metal surface

Bing Kun Yu, Yu Li, Yingting Wang

Proceedings Volume 1530, Optical Scatter: Applications, Measurement, and Theory; (1991) https://doi.org/10.1117/12.50525
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

This paper reports the experimental results on using Langmuir—Blodgett (LB) films as spacer layers between molecules and metal surface to study electromagnetic enhancement mechanisms of Surface Enhanced Raman Scattering (SERS), and to measure the change of SERS intensity with spacer layer thickness. In pyridine + KCL/LB films/Ag films configuration, the experimental results indicate SERS effect exists when the spacer layer thickness is 5 nm, and eventually it becomes unobservable with 15 nm thickness. The experiments supported the idea that the enhancement arises from an electromagnetic mechanism,

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Bing Kun Yu, Yu Li, and Yingting Wang "SERS used to study the effect of Langmuir-Blodgett spacer layers on metal surface", Proc. SPIE 1530, Optical Scatter: Applications, Measurement, and Theory, (1 December 1991); https://doi.org/10.1117/12.50525

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