Zappalà, Giulia Thamdrup, Lasse Højlund Eklund Abbaspourmani, AmirAli Dumont, Elodie Wu, Kaiyu Shkondin, Evgeniy Mallada, Reyes Pina, Maria Pilar Rindzevicius, Tomas Boisen, Anja Atomic layer deposition of hafnium dioxide for increasing temporal stability of silver-capped silicon nanopillar substrates used for SERS 10.1016/j.surfin.2025.106415 2025 2025