Nature Communications (Oct 2017)

Binary temporal upconversion codes of Mn2+-activated nanoparticles for multilevel anti-counterfeiting

  • Xiaowang Liu,
  • Yu Wang,
  • Xiyan Li,
  • Zhigao Yi,
  • Renren Deng,
  • Liangliang Liang,
  • Xiaoji Xie,
  • Daniel T. B. Loong,
  • Shuyan Song,
  • Dianyuan Fan,
  • Angelo H. All,
  • Hongjie Zhang,
  • Ling Huang,
  • Xiaogang Liu

DOI
https://doi.org/10.1038/s41467-017-00916-7
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 7

Abstract

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Luminescent materials that are capable of binary temporal coding are desirable for multilevel anti-counterfeiting. Here, the authors engineer nanoparticles that produce binary color codes on different timescales by combining the long-lived luminescence of Mn2+ with the relatively short-lived emission of lanthanides.