Abstract
Ultraflat metal surfaces are used in template stripping (TS), which is a method for obtaining a metal with an average surface roughness on the order of <1 nm. This is important for plasmonics, for the production of high-quality SAM surfaces, and for many other applications. Herein we show for the first time that TS indeed introduces a very high density of surface nanodefects (twinning and stacking faults), which can strongly hinder surface-induced properties such as SAM ordering and plasmonic phenomena, despite the seemingly overall ultrahigh flatness. We have used state of the art characterization techniques such as HRXRD, spherical-aberration-corrected HRTEM, and STM. We also demonstrate how these nanodefects can be completely eliminated.
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