Dynamic metal patterns of wrinkles based on photosensitive layers

Autor: Shuai Chen, Kaiming Hu, Shuzhen Yan, Tianjiao Ma, Xinlu Deng, Wenming Zhang, Jie Yin, Xuesong Jiang
Rok vydání: 2022
Předmět:
Zdroj: Science bulletin. 67(21)
ISSN: 2095-9281
Popis: 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.
Databáze: OpenAIRE