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Strongly enhanced Raman scattering of Cu-phthalocyanine sandwiched between graphene and Au(111)
Wan-Ing Lin1, Mohammad Fardin Gholami1, Paul Beyer1
1Department of Physics, Humboldt-Universität zu Berlin, 12489 Berlin, Germany. rabe@physik.hu-berlin.de.
Abstract:
Graphene and flat gold have both been argued to enhance Raman scattering of molecular adsorbates through a chemical mechanism. Here we show that these two effects can add to each other. For Cu-phthalocyanine in between graphene and Au(111) on mica a Raman enhancement up to 68-fold has been observed.

