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Nonetheless, due to their particular inefficient interacting with each other because of the event wavelength, the Raman enhancement achieved with non-metallic products is considerably lower with regards to the metallic ones. Herein, we suggest colourful semiconductor-based SERS substrates when it comes to first-time through the use of a Fabry-Pérot cavity, which understand a large freedom in manipulating light. Due to the fine adjustment associated with the absorption when it comes to both frequency and strength, re