Facile fabrication of reproducible Ni Ag SERS substrates via ultrasonic-assisted spin-coating

Key Points

• The optimized method yields consistent SERS substrate performance, essential for effective sensing applications.
• Performance variability of the substrates was as low as 10% across multiple trials, demonstrating reliability.
• Fabrication through spin-coating allows for uniform layer formation, critical for enhancing surface-enhanced Raman scattering (SERS) signals.
• This method of substrate preparation supports easier standardization in SERS applications, broadening potential uses.