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You M, Zhong J, Hong Y, et al. Inkjet printing of upconversion nanoparticles for anti-counterfeit applications. Nanoscale. 2015;7(10):4423-31doi: 10.1039/c4nr06944g.
You, M., Zhong, J., Hong, Y., Duan, Z., Lin, M., & Xu, F. (2015). Inkjet printing of upconversion nanoparticles for anti-counterfeit applications. Nanoscale, 7(10), 4423-31. https://doi.org/10.1039/c4nr06944g
You, Minli, et al. "Inkjet printing of upconversion nanoparticles for anti-counterfeit applications." Nanoscale vol. 7,10 (2015): 4423-31. doi: https://doi.org/10.1039/c4nr06944g
You M, Zhong J, Hong Y, Duan Z, Lin M, Xu F. Inkjet printing of upconversion nanoparticles for anti-counterfeit applications. Nanoscale. 2015 Mar 14;7(10):4423-31. doi: 10.1039/c4nr06944g. PMID: 25613526.
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Nanoscale. 2015 Mar 14;7(10):4423-31. doi: 10.1039/c4nr06944g.

Inkjet printing of upconversion nanoparticles for anti-counterfeit applications.

Nanoscale

Minli You, Junjie Zhong, Yuan Hong, Zhenfeng Duan, Min Lin, Feng Xu

Affiliations

  1. The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P.R. China. [email protected].

PMID: 25613526 DOI: 10.1039/c4nr06944g

Abstract

Patterning of upconversion luminescent materials has been widely used for anti-counterfeit and security applications, where the preferred method should be easy, fast, multicolor, high-throughput and designable. However, conventional patterning methods are complex and inflexible. Here, we report a digital and flexible inkjet printing based approach for producing high-resolution and high-luminescence anti-counterfeit patterns. We successfully printed different multicolor luminescent patterns by inkjet printing of upconversion nanoparticles with controlled and uniform luminescence intensity through optimizing the inks and substrates. Combined with another downconversion luminescent material, we achieved two different patterns in the same area, which show up separately under excitation by different wavelength laser sources. The developed technology is promising to use one single substrate for carrying abundant information by printing multilayer patterns composed of luminescent materials with different excitation light sources.

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