材料科学
纳米复合材料
高折射率聚合物
热膨胀
制作
折射率
三元运算
氧化物
立体光刻
平版印刷术
氧化钛
复合材料
化学工程
光电子学
冶金
医学
替代医学
病理
计算机科学
工程类
程序设计语言
作者
Richard Prediger,Sebastian Kluck,Leonhard Hambitzer,Daniel Sauter,Frederik Kotz
标识
DOI:10.1002/adma.202407630
摘要
Abstract Silicate‐based multicomponent glasses are of high interest for technical applications due to their tailored properties, such as an adaptable refractive index or coefficient of thermal expansion. However, the production of complex structured parts is associated with high effort, since glass components are usually shaped from high‐temperature melts with subsequent mechanical or chemical postprocessing. Here for the first time the fabrication of binary and ternary multicomponent glasses using doped nanocomposites based on silica nanoparticles and photocurable metal oxide precursors as part of the binder matrix is presented. The doped nanocomposites are structured in high resolution using UV‐casting and additive manufacturing techniques, such as stereolithography and two‐photon lithography. Subsequently, the composites are thermally converted into transparent glass. By incorporating titanium oxide, germanium oxide, or zirconium dioxide into the silicate glass network, multicomponent glasses are fabricated with an adjustable refractive index n D between 1.4584–1.4832 and an Abbe number V of 53.85–61.13. It is further demonstrated that by incorporating 7 wt% titanium oxide, glasses with ultralow thermal expansion can be fabricated with so far unseen complexity. These novel materials enable for the first time high‐precision lithographic structuring of multicomponent silica glasses with applications from optics and photonics, semiconductors as well as sensors.
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