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Keywords:

  • amorphous materials;
  • fluorescence;
  • nanoparticles;
  • polymers;
  • thin films
Thumbnail image of graphical abstract

Growth in a confined environment: A protocol for the amorphous-to-crystalline transformation (ACT) of nanoparticles has been developed, the critical step being the partial confinement of the particles by fixing in a polymer thin film and solvent vapor fuming. The ACT of a diaminodicyanoquinodimethane-based nanoparticle is accompanied by substantial fluorescence enhancement and switching of the emission color.