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Surface-Enhanced Raman Scattering (SERS) technology is renowned for its exceptional sensitivity and specificity. It has found extensive applications across various domains, including chemical analysis, food safety, medical diagnostics, and environmental science. In recent times, two-dimensional materials, exemplified by graphene and transition metal dichalcogenides, have garnered significant attention as non-precious metal SERS substrates. This is attributed to their atomically flat surfaces, outstanding chemical stability, and adjustable electronic structures. Nonetheless, the absence of dangling bonds on the surfaces of two-dimensional materials results in surface inertness and a restricted capacity for molecular adsorption. Consequently, this limitation impacts their effectiveness as SERS substrates.
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