Mechanical nanolattices printed using nanocluster-based photoresists

Qi Li*, John Kulikowski, David Doan, Ottman A. Tertuliano, Charles J. Zeman, Melody M. Wang, George C. Schatz, X. Wendy Gu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Natural materials exhibit emergent mechanical properties as a result of their nanoarchitected, nanocomposite structures with optimized hierarchy, anisotropy, and nanoporosity. Fabrication of such complex systems is currently challenging because high-quality three-dimensional (3D) nanoprinting is mostly limited to simple, homogeneous materials. We report a strategy for the rapid nanoprinting of complex structural nanocomposites using metal nanoclusters. These ultrasmall, quantum-confined nanoclusters function as highly sensitive two-photon activators and simultaneously serve as precursors for mechanical reinforcements and nanoscale porogens. Nanocomposites with complex 3D architectures are printed, as well as structures with tunable, hierarchical, and anisotropic nanoporosity. Nanocluster-polymer nanolattices exhibit high specific strength, energy absorption, deformability, and recoverability. This framework provides a generalizable, versatile approach for the use of photoactive nanomaterials in additive manufacturing of complex systems with emergent mechanical properties.

Original languageEnglish (US)
Pages (from-to)768-773
Number of pages6
JournalScience
Volume378
Issue number6621
DOIs
StatePublished - Nov 18 2022

ASJC Scopus subject areas

  • General

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