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- Title
Four-Dimensional Screening Anti-Counterfeiting Pattern by Inkjet Printed Photonic Crystals.
- Authors
Hou, Jue; Zhang, Huacheng; Su, Bin; Li, Mingzhu; Yang, Qiang; Jiang, Lei; Song, Yanlin
- Abstract
A four-dimensional screening anti-counterfeiting QR code composed of differently shaped photonic crystal (PC) dots has been fabricated that could display four images depending on different lighting conditions. By controlling the rheology of poly(dimethylsiloxane) (PDMS), three kinds of PC dots could be sequentially integrated into one pattern using the layer-by-layer printing strategy. The information can be encoded and stored in shapes and read out by the difference in optical properties.
- Subjects
COUNTERFEIT money -- Prevention; INK-jet printers; NONIMPACT printers; PHOTONIC crystals; TWO-dimensional bar codes
- Publication
Chemistry - An Asian Journal, 2016, Vol 11, Issue 19, p2680
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.201600433