超低收缩3D透明纳米孔玻璃通过低温烧结用于微光学应用
1CAS Key Laboratory of Mechanical Behavior and Design of Materials, Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230027, China.
ACS nano
|August 22, 2025
概括
这项研究介绍了透明纳米孔玻璃微结构的低温3D打印方法. 这种新的技术实现了高保真度和低收缩, 实现了先进的微光应用.
科学领域:
- 材料科学
- 纳米技术
- 光学工程
背景情况:
- 传统的3D玻璃印刷需要高温,导致缩小和限制微光应用.
- 现有的方法难以高精度制造复杂的透明玻璃微观结构.
研究的目的:
- 为透明纳米孔玻璃微结构开发低温,低收缩的3D打印策略.
- 能够制造复杂的微光学和与其他组件直接集成.
主要方法:
- 使用含有甲酸功能化纳米粒子 (MAA-NP) 的树脂进行两光子聚合.
- 在印刷后通过低温烧结 (650°C) 获得纳米孔状玻璃微结构.
- 采用均的纳米粒子分散来防止孔隙形成并确保透明度.
主要成果:
- 制造的3D玻璃微型架构具有78%的固体负载.
- 通过均的纳米粒子散射和烧结实现了97%的可见光透射率.
- 证明了低线性收缩 (∼5%),使高保真度复杂的微光学成为可能.
- 成功地将玻璃微镜头直接集成到光纤上,并具有高精度的对齐.
结论:
- 开发的低温,低收缩3D打印策略克服了传统玻璃增材制造的局限性.
- 这种技术可以为先进的微光学,光学和生物医学设备创建高保真透明的纳米孔玻璃微结构.
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