Photoinduced polymer-confined CQDs for efficient photoluminescent 2D/3D printing applications - Archive ouverte HAL Access content directly
Journal Articles Materials Advances Year : 2023

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.
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hal-04273627 , version 1 (07-11-2023)

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Jessica Plé, Corneliu S Stan, Didier Zanghi, Cécile Genevois, Samar Hajjar-Garreau, et al.. Photoinduced polymer-confined CQDs for efficient photoluminescent 2D/3D printing applications. Materials Advances, 2023, 4 (21), pp.5140-5148. ⟨10.1039/d3ma00293d⟩. ⟨hal-04273627⟩
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