title: Four-Dimensional Screening Anti-Counterfeiting Pattern by Inkjet Printed Photonic Crystals.
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.
authors.affiliation: Key Laboratory of Green Printing, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS), Beijing, 100190, P. R. China.|University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
authors.forename: Jue
authors.initials: J
authors.lastname: Hou
authors.affiliation: Department of Chemical Engineering, Monash University, Clayton, 3800, Victoria, Australia.
authors.forename: Huacheng
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Department of Chemical Engineering, Monash University, Clayton, 3800, Victoria, Australia.
authors.forename: Bin
authors.initials: B
authors.lastname: Su
authors.affiliation: Key Laboratory of Green Printing, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS), Beijing, 100190, P. R. China. mingzhu@iccas.ac.cn.
authors.forename: Mingzhu
authors.initials: M
authors.lastname: Li
authors.affiliation: Key Laboratory of Green Printing, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS), Beijing, 100190, P. R. China.|University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Yang
authors.affiliation: Department of Chemical Engineering, Monash University, Clayton, 3800, Victoria, Australia.
authors.forename: Lei
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Key Laboratory of Green Printing, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS), Beijing, 100190, P. R. China. ylsong@iccas.ac.cn.
authors.forename: Yanlin
authors.identifier: http://orcid.org/0000-0002-2434-3070
authors.initials: Y
authors.lastname: Song
keywords: anti-counterfeiting; inkjet printing; multiplexed optical screening; nanoparticles; photonic crystals; quick response code