Nanofabrication is an indispensable process in nanoscience and nanotechnology. Unconventional lithographic techniques are often used for fabrication as alternatives to photolithography because they are faster, more cost-effective, and simpler to use. However, these techniques are limited in scalability and utility because of the collapse of preprinted structures during step-and-repeat processes. This study proposes a new class of temperaturecontrollable polymeric molds that are coated with a metal such that any site-specific patterning can be accomplished in a programmable manner using selective contact-dewetting lithography. The lithography allows sub-100 nm patterning, step-and-repeat processing, and hierarchical structure fabrication. The programmable feature of the lithography can be utilized for the structural coloring and shaping of objects. Large-area programmable patterning, semiconductor device manufacturing, and the fabrication of iridescent security devices would benefit from the unique features of the proposed strategy.
In article number https://doi.org/10.1002/adfm.201702993, Kwang Su Kim, Jong Uk Kim, and co‐workers present a hierarchical structure created by multiple molding with a metal‐coated mold, which is able to precisely control its temperature via joule‐heating. Due to the characteristics of the mold, this technique has a great potential for large‐area programmable patterning, and 3D hierarchical structuring via step‐and‐repeat processes.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.