Photoinduced polymer-confined CQDs for efficient photoluminescent 2D/3D printing applications
Abstract
CQD-loaded photopolymers were efficiently synthesized using commercially available materials in an
easy one step process, combining the fast thermal decomposition of a carbon precursor with the direct
integration into photopolymerizable acrylate formulations. Depending on the polymer matrix, the
nanocomposites exhibited different optical properties as a result of their surface chemistry and
dispersion state, while maintaining similar blue fluorescence in the 425–470 nm region. The CQD@
triacrylate photoluminescent films showed the highest quantum yield (B65%), most likely due to improved
nanoparticle confinement inside the crosslinked network, compared to the diacrylate or co-polymer
matrixes. The low viscosity of the monomer dispersions allowed them to be used as fluorescent inks for
glass and textile coatings, 2D stenciling/stamping of various shapes or as photocurable resins for 3D
printing in the near visible region. This provides promising future applications in optics, nanomedicine,
sensing, anti-counterfeiting or textile functionalization.
Origin : Publisher files allowed on an open archive
Licence : CC BY - Attribution
Licence : CC BY - Attribution