Correction to: Role of Au–Ag alloy plasmonic layer thickness over pyramidal silicon in controlling SERS activityShinki, Shreya Jain and Subhendu SarkarEur. Phys. J. Spec. Top., 232 Suppl 1 (2023) 3DOI: https://doi.org/10.1140/epjs/s11734-022-00477-x