The formation and control of highly crumpled metal surfaces on a photocurable viscous liquid. Issue 31 (22nd July 2016)

• Record Type: Journal Article
• Authors: Bae, Jung Gun; Sung, Seung Hyun; Lee, Hyemin; Char, Kookheon; Yoon, Hyunsik; Lee, Won Bo
• Is Part Of: Soft matter. Volume 12:Issue 31(2016)
• Page Start: 6507
• Page End: 6511
• Publication Date: 2016-07-22
• Subjects: Soft condensed matter -- Periodicals; 530.413
• DOI: 10.1039/c6sm01203e
• Languages: English
• ISSNs: 1744-683X

Abstract

Abstract : Folds, highly deformed structures, have received extensive attention for their nonlinear responses due to a large strain on soft matters. Abstract : Folds, highly deformed structures, have received extensive attention for their nonlinear responses due to a large strain on soft matters. To investigate the folding phenomena, here, we exploit residual tensile stress during metal deposition, which is large enough to compress a thin film coating and introduce a photocurable viscous fluid to decrease the resistance of the substrate against compressive stress. The system has the advantages of the abilities for freezing the highly deformed surfaces by post-UV exposure to the UV-crosslinkable substrate and manipulating the substrate effect by controlling the thickness of the substrate. We theoretically investigated the dependence on the substrate thickness using scaling analysis and demonstrated self-generated ladder and flower-like graphoepitaxial structures originated from the thickness design of the viscous substrate.