材料科学
倍半硅氧烷
纳米尺度
微系统
烧结
硅
纳米技术
纳米结构
纳米笼
3D打印
粒子(生态学)
纳米光子学
弹性(材料科学)
复合材料
光电子学
聚合物
生物化学
催化作用
化学
海洋学
地质学
作者
J. Bauer,Cameron Crook,Tommaso Baldacchini
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2023-06-02
卷期号:380 (6648): 960-966
被引量:35
标识
DOI:10.1126/science.abq3037
摘要
Three-dimensional (3D) printing of silica glass is dominated by techniques that rely on traditional particle sintering. At the nanoscale, this limits their adoption within microsystem technology, which prevents technological breakthroughs. We introduce the sinterless, two-photon polymerization 3D printing of free-form fused silica nanostructures from a polyhedral oligomeric silsesquioxane (POSS) resin. Contrary to particle-loaded sacrificial binders, our POSS resin itself constitutes a continuous silicon-oxygen molecular network that forms transparent fused silica at only 650°C. This temperature is 500°C lower than the sintering temperatures for fusing discrete silica particles to a continuum, which brings silica 3D printing below the melting points of essential microsystem materials. Simultaneously, we achieve a fourfold resolution enhancement, which enables visible light nanophotonics. By demonstrating excellent optical quality, mechanical resilience, ease of processing, and coverable size scale, our material sets a benchmark for micro- and nano-3D printing of inorganic solids.
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