Additive Manufacturing of 3D Luminescent ZrO ₂ :Eu ³⁺ Architectures

Implementation of more refined structures at the nano to microscale is expected advance applications in optics and photonics. This work presents additive manufacturing 3D luminescent microarchitectures emitting light visible range. A tailor-made organo-metallic resin suitable for two-photon lithography developed, which upon thermal treatment an oxygen-rich atmosphere allows creation silicon-free tetragonal (t-) monoclinic (m-) ZrO2. The approach unique because Zr-resin different from what achieved other reported approaches based on sol−gel resins. compatible with Eu-rich dopant, a activator, enables tune optical properties ZrO2 annealing. emission characteristics Eu-doped microstructures are investigated detail cathodoluminescence compared intrinsic hosted Eu has orange−red showcased using fluorescence microscopy. presented structuring technology provides new platform future development devices.