Four-Dimensional Screening Anti-Counterfeiting Pattern by Inkjet Printed Photonic Crystals

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• 作者：Dr. Jue Hou ; Dr. Huacheng Zhang ; Dr. Bin Su ; Prof. Mingzhu Li ; Dr. Qiang Yang ; Prof. Lei Jiang and Prof. Yanlin Song
• 刊名：Chemistry – An Asian Journal
• 出版年：2016
• 出版时间：October 6, 2016
• 年：2016
• 卷：11
• 期：19
• 页码：2680-2685
• 全文大小：1404K
• ISSN：1861-471X

文摘

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.