How to avoid the influence of substrate when getting the Raman spectra of transparent BN caotings?

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Gaurav Gupta

Hii,

What is the thickness of BN coating. If it is less than 60 nm, so you have to go through surface enhanced raman spectroscopy. Please check out the process of SERS and then perform raman measurement.

Jp Wu

If available, confocal Raman microscope can reveal the structures of your thin film, chemically and spatially.