Page 15 - MSAM-3-4
P. 15

Materials Science in Additive Manufacturing                           Additive manufacturing of active optics




                          A












                          B
















            Figure 7. Printable ceramics and glass for high-performance 3D optics. (A) DIW of glass and ceramics intelligent agricultural lighting. Adapted with
            permission from Yang et al.  (Copyright © 2023, American Chemical Society). (B) Guided-wave up-conversion luminescence in Er /Yb  co-doped
                              51
                                                                                                  3+
                                                                                                      3+
            phosphate glass waveguide produced by direct femtosecond laser writing. Adapted with permission from Zhou et al.  (Copyright © 2022, Zhou et al.)
                                                                                      53
            Abbreviations: CASN‑phosphor‑in‑glass: CaAlSiN3:Eu2+ Phosphors in Glass; DIW: Direct ink writing; UV: Ultraviolet
            integration allows for greater control over light emission   devices,  as shown in Figure 8A. The combination of QDs
                                                                     59
            in multi-wavelength systems, where precise wavelength   with 3D printing has also led to breakthroughs in wearable
            tuning is essential. 42,55   The  use  of  UCNPs  in  3D‑printed   electronics and high-resolution 3D optoelectronic
            ceramics and glasses also offers enhanced thermal stability   devices 57,58,60  (Figure 8B).
            and durability, ensuring long-lasting performance in high-
            power and high-temperature applications. 56        3.5. Nanocomposites for multifunctional 3D optics
                                                               Nanocomposites – materials that integrate nanoparticles
            3.4. Semiconductor materials: QDs and photonic     into  a matrix  –  combine the properties  of  different
            devices                                            materials, allowing for multifunctionality in 3D-printed
            Semiconductor materials, including QDs, play a critical   optical devices, as shown in Figure 9. These materials, such
            role  in  3D-printed  optoelectronic  devices  due  to  their   as polymer-metal or polymer-ceramic nanocomposites,
            high  photoluminescence efficiency, narrow  emission   offer enhanced light control through improved refractive
            bandwidth, and wide color tunability. These properties   indices, plasmonic resonance, or luminescent properties. 37
            make semiconductors indispensable for applications such   Nanocomposite-based  optics  can  be  tailored  to
            as displays, photodetectors, data storage, and biological   emit light at specific wavelengths or direct light more
            tagging. 57                                        efficiently in optical circuits, displays, and sensing devices.
              Advanced manufacturing techniques, such as       (Figure  9A-C). By leveraging additive manufacturing,
            femtosecond  laser  printing  and  layer-by-LuAG   nanocomposites enable the creation of highly customized
            layer fabrication, allow for the precise patterning of   3D architectures that optimize both mechanical and optical
            semiconductor nanostructures. These  processes  enable   performance in next-generation photonic devices. 61-65
            the creation of free-form 3D nanostructures with high   4. Additively manufactured 3D active
            resolution, critical for optoelectronic devices and next-
            generation display technologies.  Additive manufacturing   optical structures
                                     58
            of structures of oxide semiconductors with oxygen   Recent  advancements  in  additive  manufacturing
            vacancies is crucial for advancing miniaturized optical   have enabled the development of complex 3D optical


            Volume 3 Issue 4 (2024)                         9                              doi: 10.36922/msam.5748
   10   11   12   13   14   15   16   17   18   19   20