Research Article www.acsami.org
Ultrastable and Atomically Smooth Ultrathin Silver Films Grown on a Copper Seed Layer Nadia Formica,*,†,⊥ Dhriti S. Ghosh,†,⊥ Albert Carrilero,† Tong Lai Chen,† Robert E. Simpson,§ and Valerio Pruneri†,‡ †
ICFO-Institut de Ciències Fotòniques, Mediterranean Technology Park, Castelldefels, Barcelona, 08860 Spain ICREA-Institució Catalana de Recerca i Estudis Avancats, Barcelona, 08010 Spain § Singapore University of Technology and Design, 20 Dover Drive, Singapore ‡
ABSTRACT: An effective method to deposit atomically smooth ultrathin silver (Ag) films by employing a 1 nm copper (Cu) seed layer is reported. The inclusion of the Cu seed layer leads to the deposition of films with extremely low surface roughness (
