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Precise Regulation the Multiemission Based on Soft Double Salt for Information Encryption.

Xin Lei1, Yeye Ai1, Zhu Shu1

  • 1College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China.

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Researchers developed a novel soft double salt assembly strategy for multiemissive platinum(II) complexes. This method creates organized nanostructures with tunable luminescence, suitable for advanced information encryption applications.

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Photochemistry

Background:

  • Multiemissive luminophores are crucial for developing advanced luminescent materials.
  • Controlling nanostructure formation and luminescence properties is key for material applications.

Purpose of the Study:

  • To report a soft double salt assembly strategy for platinum(II) complexes.
  • To explore the relationship between intermolecular interactions, nanostructure morphology, and luminescence properties.
  • To demonstrate the potential of these materials for information encryption.

Main Methods:

  • Coassembly of anionic and cationic platinum(II) complexes.
  • Characterization of nanostructure morphology (0-D to 3-D).
  • Spectroscopic analysis of luminescence properties (monomeric, excimeric, 3MMLCT).

Main Results:

  • Well-organized nanostructures were formed through spontaneous self-assembly.
  • Luminescence properties switched from monomeric/excimeric to 3MMLCT emission.
  • Morphology changed from 0-D nanospheres to 3-D nanostructures.
  • Negative Gibbs free energy (ΔG) indicated favorable aggregation via π-π stacking, Pt-Pt, and electrostatic interactions.

Conclusions:

  • The soft double salt assembly strategy enables precise control over nanostructure and luminescence.
  • The resulting materials exhibit multicolor luminescence and tunable optical properties.
  • These platinum(II) complex assemblies are promising for advanced information encryption.