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Structural Multi-Colour Invisible Inks with Submicron 4D Printing of Shape Memory Polymers
- Source :
- Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021), Nature Communications
- Publication Year :
- 2020
-
Abstract
- Four-dimensional (4D) printing of shape memory polymer (SMP) imparts time responsive properties to 3D structures. Here, we explore 4D printing of a SMP in the submicron length scale, extending its applications to nanophononics. We report a new SMP photoresist based on Vero Clear achieving print features at a resolution of ~300 nm half pitch using two-photon polymerization lithography (TPL). Prints consisting of grids with size-tunable multi-colours enabled the study of shape memory effects to achieve large visual shifts through nanoscale structure deformation. As the nanostructures are flattened, the colours and printed information become invisible. Remarkably, the shape memory effect recovers the original surface morphology of the nanostructures along with its structural colour within seconds of heating above its glass transition temperature. The high-resolution printing and excellent reversibility in both microtopography and optical properties promises a platform for temperature-sensitive labels, information hiding for anti-counterfeiting, and tunable photonic devices.<br />Four-dimensional (4D) printing of shape memory polymer (SMP) imparts time responsive properties to 3D structures. Here, the authors explore 4D printing of a SMP in the submicron length scale, extending its applications to nanophononics.
- Subjects :
- Nanostructure
Materials science
Science
FOS: Physical sciences
General Physics and Astronomy
Nanotechnology
Applied Physics (physics.app-ph)
02 engineering and technology
Photoresist
010402 general chemistry
01 natural sciences
General Biochemistry, Genetics and Molecular Biology
Article
Lithography
Nanoscopic scale
Nanophotonics and plasmonics
Multidisciplinary
business.industry
Synthesis and processing
General Chemistry
Shape-memory alloy
Physics - Applied Physics
021001 nanoscience & nanotechnology
0104 chemical sciences
Shape-memory polymer
Metamaterials
Photonics
Deformation (engineering)
0210 nano-technology
business
Optics (physics.optics)
Physics - Optics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021), Nature Communications
- Accession number :
- edsair.doi.dedup.....23fbe444ff1ced78923f04465a6042bb