For getting SERS signal peoples used silicon wafer as a SERS substrate. Why we need to use silicon wafer and why other substrate not useful?

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Luis A. Pérez

I dont think so. For getting SERS you can use many substrates, it's depends on the enhancement.

Uppari Venkataramudu

can give me some details of other substrates.

Tao Wang

Because Si wafer is stable in most measurement condition and is easy to be cleaned, meantime, it is cheaper than most of other substrate. The polished surface is convinent for the obtainment of the SERS signals.

Dear Tao Wang, here should not concentrate on price, and let consider ITO (Indium-Tin oxide) substrate on this we stabilized gold nano particles in this case also we are unable get SERS signals.