Quantum dot based 3D printed woodpile photonic crystals tuned for the visible

• DOI: 10.1039/c9na00357f
• Publication Date: 2019-07-09T12:34:27Z
• Authors: Ioanna Sakellari; Elmina Kabouraki; Dimitris Karaniko...; Sotiris Droulias; Maria Farsari; Panagiotis Loukakos; Maria Vamvakaki; David Gray
• Keywords: Visible spectrum; Structural Coloration

The development of dynamically responsive 3D photonic elements, which is crucial for the design active integrated circuits, requires incorporation material systems with fast and tunable response. To this end, semiconductor quantum dots have been widely used to perform as system be integrated; nonetheless, multiple-step processing usually required functions preserved, thereby restricting functionality elements mostly infrared. Here, we report a simple scheme realization visible light devices by combining direct laser writing two-photon absorption in situ synthesis cadmium sulfide (CdS) nanoparticles. novel printable hybrid synthesized crosslinking precursors CdS into photo-structurable organic-inorganic zirconium-silicon composite integrating functional properties both high spatial resolution third-order nonlinearity matrix. As proof-of-demonstration printed devices, woodpile crystals an inlayer periodicity down 500 nm are successfully fabricated showing clear stop bands spectral region, while first time, evidence ultrafast dynamic response also demonstrated.