Plug-and-Play Optical Materials from Fluorescent Dyes and Macrocycles

We report a universal solution to this longstanding problem with the discovery of a class of materials called small-molecule ionic isolation lattices

Christopher R. Benson; Laura Kacenauskaite; Katherine L. VanDenburgh; Wei Zhao; Bo Qiao; Tumpa Sadhukhan; Maren Pink; Junsheng Chen; Sina Borgi; Chun-Hsing Chen; Brad J. Davis; Yoan C. Simon; Krishnan Raghavachari; Bo W. Laursen; Amar H. Flood

2020

Scholarcy highlights

  • Fluorescence is a property of matter that is critical for many technologies, such as OLEDs, as well as new applications, such as triplet-triplet annihilation upconversion. Fluorescence has been the subject of a large number of discoveries including the revolutionary lead halide perovskites made by mixing and matching ionic building blocks to control optical properties
  • small-molecule ionic isolation lattices are a new class of materials that offer direct access to brightly emissive solids as designed and with immediate impact in the preparation of fluorescent commercial polymers
  • SMILES materials with predictable crystalline packing can be prepared by following general design rules to produce spatial and electronic isolation
  • It can be fulfilled by ensuring that the dyes highest occupied molecular orbital and lowest unoccupied molecular orbital are nested inside those of the structure-directing cyanostar-anion complex
  • The core of the materials chemistry discovery is that the use of cyanostar macrocycles fulfills both design rules and can be realized by addition of just one component to the dye
  • This strategy was demonstrated by doping polymers with SMILES materials to circumvent concentration quenching in nine major polymer classes
  • small-molecule ionic isolation lattices offer use of the wide range of powerful cationic dyes as building blocks for the rational design, understanding, and discovery of advanced optical materials

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