mz8b00211_si_001.pdf (1 MB)
Reversible Surface Dual-Pattern with Simultaneously Dynamic Wrinkled Topography and Fluorescence
journal contribution
posted on 2018-04-16, 17:55 authored by Mingxuan Xie, Fugui Xu, Luzhi Zhang, Jie Yin, Xuesong JiangThe reversible surface patterns with
fluorescence and topography
can possibly enable information recording and reading and provide
an important alternative to realize the higher information security.
We demonstrated a reversible dual-pattern with simultaneously responsive
fluorescence and topography using an anthracene (AN) and naphthalene
diimide (NDI) containing copolymer (PAN-NDI-BA) as the skin layer,
in which the reversible photodimerization of AN can simultaneously
control the cross-linking and CT interaction between AN and NDI. Upon
irradiation with UV light and thermal treatment, the resulting pattern
assumes a reversible change between smooth and wrinkled states, and
its fluorescence changes reversibly from red to white to blue-green.
The smart surfaces with dynamic hierarchical wrinkles and fluorescence
were achieved by selective irradiation with photomasks and can be
employed for potential applications in smart displays and anticounterfeiting.