Two-dimensional information encryption and reading at the micrometer scale based on ag/Cu2O composite SERS substrates

Key Points

• Effective information encryption occurs on a micrometer scale with Ag/Cu2O SERS substrates, enhancing data security.
• Surface-enhanced Raman scattering interactions provide robust reading mechanisms, crucial for reliable data access.
• Analysis of composite substrates demonstrates improved performance in two-dimensional encryption techniques.
• The findings may enable novel applications in secure data transmission and storage systems.