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. 2019 Sep 23;58(39):13803-13807.
doi: 10.1002/anie.201907433. Epub 2019 Aug 19.

Heteroepitaxial Growth of Multiblock Ln-MOF Microrods for Photonic Barcodes

Yinan Yao  1 , Zhenhua Gao  2   3 , Yuanchao Lv  2   3 , Xianqing Lin  2   3 , Yingying Liu  2   3 , Yuxiang Du  2   3 , Fengqin Hu  1 , Yong Sheng Zhao  2   3
Affiliations

Heteroepitaxial Growth of Multiblock Ln-MOF Microrods for Photonic Barcodes

Yinan Yao et al. Angew Chem Int Ed Engl. .

Abstract

Micro/nanoscale multicolor barcodes with unique identifiability and a small footprint play significant roles in applications such as multiplexed labeling and tracking systems. Now, a strategy is reported to design multicolor photonic barcodes based on 1D Ln-MOF multiblock heterostructures, where the domain-controlled emissive colors and different block lengths constitute the fingerprint of a corresponding heterostructure. The excellent heteroepitaxial growth characteristics of MOFs enable the effective modulation of the coding structures, thereby remarkably increasing the encoding capacity. The as-prepared multicolor barcodes enable an efficient authentication and exhibit great potential in fulfilling the functions of anti-counterfeiting, information security, and so on. The results will pave an avenue to novel hybrid MOFs for optical data recording and security labels.

Keywords: Ln-MOF; anti-counterfeiting devices; heteroepitaxial growth; metal-organic frameworks; photonic barcodes.

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