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Issue 43, 2018
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Highly stable perovskite nanogels as inks for multicolor luminescent authentication applications

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Abstract

Preparation of multiplexing optical tags with well-resolved emissions is particularly intriguing in anti-counterfeiting and authentication applications given that broad and overlapping emission would severely impair the encoding capacities and performance. Bright and sharp multicolor emission of metal halide perovskite quantum dots (PQDs) makes them good alternatives, but the weak stability potentially hampers their practical implications. We here developed a novel strategy for synthesizing a full-spectral emissive perovskite gel with greatly improved photo-stability, thermal-stability and humidity-stability by embedding PQDs in a pre-polymerized polymer gel at room temperature and further employed it as multicolor ink for printing anti-counterfeiting two-dimensional barcodes.

Graphical abstract: Highly stable perovskite nanogels as inks for multicolor luminescent authentication applications

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Publication details

The article was received on 03 Sep 2018, accepted on 02 Oct 2018 and first published on 03 Oct 2018


Article type: Paper
DOI: 10.1039/C8TC04420A
Citation: J. Mater. Chem. C, 2018,6, 11569-11574
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    Highly stable perovskite nanogels as inks for multicolor luminescent authentication applications

    H. Wang, X. Yin and L. Wang, J. Mater. Chem. C, 2018, 6, 11569
    DOI: 10.1039/C8TC04420A

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