Additive Manufacturing of Transparent Multi-Component Nanoporous Glasses

Beining Li, Zhenjiang Li, Ido Cooperstein, Wenze Shan, Shuaipeng Wang, Benxue Jiang*, Long Zhang, Shlomo Magdassi*, Jin He*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Fabrication of glass with complex geocd the low resolution of particle-based or fused glass technologies. Herein, a high-resolution 3D printing of transparent nanoporous glass is presented, by the combination of transparent photo-curable sol–gel printing compositions and digital light processing (DLP) technology. Multi-component glass, including binary (Al2O3-SiO2), ternary (ZnO-Al2O3-SiO2, TiO2-Al2O3-SiO2), and quaternary oxide (CaO-P2O5-Al2O3-SiO2) nanoporous glass objects with complex shapes, high spatial resolutions, and multi-oxide chemical compositions are fabricated, by DLP printing and subsequent sintering process. The uniform nanopores of Al2O3-SiO2-based nanoporous glasses with the diameter (≈6.04 nm), which is much smaller than the visible light wavelength, result in high transmittance (>95%) at the visible range. The high surface area of printed glass objectives allows post-functionalization via the adsorption of functional guest molecules. The photoluminescence and hydrophobic modification of 3D printed glass objectives are successfully demonstrated. This work extends the scope of 3D printing to transparent nanoporous glasses with complex geometry and facile functionalization, making them available for a wide range of applications.

Original languageAmerican English
JournalAdvanced Science
DOIs
StateAccepted/In press - 2023

Bibliographical note

Publisher Copyright:
© 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.

Keywords

  • DLP
  • hybrid oligomer ink
  • hydrophobic modification
  • multi-component
  • photoluminescence
  • transparent nanoporous glasses

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