Dynamic metal patterns of wrinkles based on photosensitive layers

Shuai Chen; Kaiming Hu; Shuzhen Yan; Tianjiao Ma; Xinlu Deng; Wenming Zhang; Jie Yin; Xuesong Jiang

doi:10.1016/j.scib.2022.10.016

Dynamic metal patterns of wrinkles based on photosensitive layers

Sci Bull (Beijing). 2022 Nov 15;67(21):2186-2195. doi: 10.1016/j.scib.2022.10.016. Epub 2022 Oct 21.

Authors

Shuai Chen¹, Kaiming Hu², Shuzhen Yan¹, Tianjiao Ma¹, Xinlu Deng², Wenming Zhang³, Jie Yin¹, Xuesong Jiang⁴

Affiliations

¹ School of Chemistry & Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, China.
² State Key Laboratory of Mechanical Systems and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
³ State Key Laboratory of Mechanical Systems and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address: wenmingz@sjtu.edu.cn.
⁴ School of Chemistry & Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address: ponygle@sjtu.edu.cn.

PMID: 36545994
DOI: 10.1016/j.scib.2022.10.016

Abstract

Regulating metal surfaces with micro-/nanoscale structures is of great significance for both material science and potential applications. However, the intrinsic properties of metals, such as fixed isotropic moduli and inflexible structures, in a sense present major limitations in developing next-generation smart patterned surfaces. In this work, a facile and general patterning strategy is proposed to endow insensitive metal surfaces with controllable spontaneous topologies and dynamic performance by exquisitely introducing an essential photosensitive interlayer. The arresting anthracene-containing photocrosslinking interlayer can selectively predetermine the anisotropic property of compliant bilayers without damaging metals' homogeneous properties, and realize a changeable stiff/soft layer. Furthermore, the mechanical transition mechanism of the self-adaptive wrinkling modes in metal-based trilayer systems is revealed to pave the pathway for regulating functional wrinkled metal surfaces. This photodriven metal patterning strategy can promote the development of brand-new methods for tuning the instability of multilayered materials, and be potentially applied in smart optical devices with dynamic reflectance, including light gratings and "magic" mirrors.

Keywords: Dynamic metal patterning; Multilayered systems; Optical devices; Self-adaptive wrinkling; Smart surfaces.