All-Optical Reversible Azo-Based Wrinkling Patterns with High Aspect Ratio and Polarization-Independent Orientation for Light-Responsive Soft Photonics
Wang J, Zheng Y, Li L, Liu E, Zong C, Zhao J, Xie J, Xu F, Koenig TAF, Saphiannikova MG, Cao Y, Fery A, Lu C (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 11
Pages Range: 25595-25604
Journal Issue: 28
Abstract
Azobenzene-containing polymers (azopolymers) can serve as building blocks for an emerging class of soft photonics. Using their photoresponses for the micro/nanofabrication of smart surface is a key but still a challenging step. Here, we report a simple visible-light-illumination strategy to trigger diverse configurations of surface wrinkling on azopolymer-based film/substrate systems, which can be switched between flat and wrinkled states by controlling the intensity of the incident light. Different photoresponsive characteristics of azobenzene are involved in driving the wrinkling/dewrinkling switch. For the first time, we achieve the controlled wrinkling with an unexpected high aspect ratio and surprisingly polarization-independent ordered orientation by exploiting the unique photosoftening effect of azobenzene. Theoretical analysis reveals that an in situ photoinduced reversible soft/hard-contrast boundary determines the wrinkling orientation, which is used to fabricate diverse on-demand hierarchical wrinkles. These photoresponsive systems find broad photonic applications that are not easily accessible to other systems, e.g., optically reversible smart display, information security, and well-regulated optical devices.
Involved external institutions
Tsinghua University
China (CN)
Tianjin University (TJU) / 天津大学
China (CN)
Leibniz-Institut für Polymerforschung Dresden e. V.
Germany (DE)
Fudan University / 复旦大学
China (CN)
China (CN)
Tianjin University (TJU) / 天津大学
China (CN)
Leibniz-Institut für Polymerforschung Dresden e. V.
Germany (DE)
Fudan University / 复旦大学
China (CN)
How to cite
APA:
Wang, J., Zheng, Y., Li, L., Liu, E., Zong, C., Zhao, J.,... Lu, C. (2019). All-Optical Reversible Azo-Based Wrinkling Patterns with High Aspect Ratio and Polarization-Independent Orientation for Light-Responsive Soft Photonics. ACS Applied Materials and Interfaces, 11(28), 25595-25604. https://doi.org/10.1021/acsami.9b07349
MLA:
Wang, Juanjuan, et al. "All-Optical Reversible Azo-Based Wrinkling Patterns with High Aspect Ratio and Polarization-Independent Orientation for Light-Responsive Soft Photonics." ACS Applied Materials and Interfaces 11.28 (2019): 25595-25604.
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