Triplet fusion upconversion nanocapsules for volumetric 3D printing
Samuel N. Sanders, Tracy H. Schloemer, Mahesh K. Gangishetty, Daniel G. Anderson, Michael Seitz, Arynn O. Gallegos, R. Christopher Stokes, Daniel N. Congreve
Abstract
to print volumetrically with less than 4 milliwatt continuous-wave excitation. Upconversion is introduced to the resin by means of encapsulation with a silica shell and solubilizing ligands. We further introduce an excitonic strategy to systematically control the upconversion threshold to support either monovoxel or parallelized printing schemes, printing at power densities several orders of magnitude lower than the power densities required for two-photon-based 3D printing.
Topics & Concepts
3D printingStereolithographyPhoton upconversionMaterials sciencePhotopolymerAbsorption (acoustics)Digital printingOptoelectronicsNanotechnologyNanoscopic scaleLaserOpticsDopingPolymerizationPhysicsComposite materialEngineering drawingPolymerEngineeringNonlinear Optical Materials StudiesPhotochromic and Fluorescence ChemistryLuminescence and Fluorescent Materials