Fabrication of a roll imprint stamp using zirconia for the UV roll imprinting process

• Published in: RSC advances 2014-01, Vol.4 (95), p.5262-52623
• Main Authors: Choo, Soyoung, Choi, Hak-Jong, Kim, Chaehyun, Ryu, Sang-Woo, Lee, Heon
• Format: Article
• Language: English
• Subjects: Dispersions; Molds; Nanostructure; Polymers; Resins; Rolls; Silicone resins; Zirconium dioxide
• ISSN: 2046-2069; 2046-2069
• DOI: 10.1039/c4ra09845e

In the present work, we have developed a new method for fabricating a roll imprint stamp containing three dimensional micro- and nanosized patterns for the ultraviolet (UV) roll imprinting process, using a flexible poly-dimethylsiloxane (PDMS) mold and a UV-curable zirconium oxide (ZrO 2 ) nanoparticle (NP) dispersion resin. By employing the UV-curing imprinting process, the micro- and nanopatterns on the PDMS mold were successfully transferred to the ZrO 2 NP dispersion resin film, attached to the surface of the roll. The obtained ZrO 2 roll imprint stamp has two main advantages: a high hardness after annealing at 600 °C and a good anti-sticking surface after the surface treatment carried out using a hydrophobic self-assembled monolayer (SAM). As a result, the ZrO 2 roll imprint stamp effectively transferred its micro- and nanopatterns to a large area of the flexible polymer substrate, maintaining a high quality throughout the whole UV roll imprinting process. We have developed a new method for fabricating a roll imprint stamp containing three dimensional micro- and nanosized patterns for the ultraviolet (UV) roll imprinting process, using a flexible mold and a ZrO 2 nanoparticle dispersion resin.