A dynamic assembly-induced emissive system for advanced information encryption with time-dependent security

The development of advanced materials for information encryption with time-dependent features is essential to meet the increasing demand on encryption security. Herein, smart materials with orthogonal and temporal encryption properties are successfully developed based on a dynamic assembly-induced multicolour supramolecular system. Multicolour fluorescence, including blue, orange and even white light emissions, is achieved by controlling the supramolecular assembly of pyrene derivatives by tailoring the solvent composition. By taking advantage of the tuneable fluorescence, dynamically controlled information encryption materials with orthogonal encryption functions, e.g., 3D codes, are successfully developed.…

• NN
  National Natural Science Foundation of China

  Awards: 22025503, 21788102, 22025503, 21790361, 21871084, 21788102, B16017, grants 21788102, 22025503, 21790361, 21871084, 21790361, 21871084, 2018SHZDZX03
• EC
  East China University of Science and Technology
• SA
  Science and Technology Commission of Shanghai Municipality

  Awards: 21788102, 21JC1401700, B16017, 2018SHZDZX03, 19XD1421100
• ZU
  Zhejiang University

  Awards: ZJU-SIAS-006, SN-ZJU-SIAS-006
• FR
  Fundamental Research Funds for the Central Universities

  Awards: 2018SHZDZX03, 21788102, B16017
• PO
  Program of Shanghai Academic Research Leader

  Award: 19XD1421100