具有增强集体Mie共振的3D光子元晶体,用于双重结构色彩
Yue Wu1, Jiahui Xu2, Zhipeng Meng1
1State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian, 116024, P. R. China.
Advanced materials (Deerfield Beach, Fla.)
|August 13, 2025
概括
使用自组装纳米粒子创建了具有增强Mie共振的高质量的3D光子晶体. 这一突破使耐用结构色彩和先进的光学传感应用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 光子学是指光子学的使用方法.
- 纳米技术 纳米技术
背景情况:
- 3D光子晶体通过Mie共振提供结构色彩,但遭受光学损失.
- 已知在有序数组中增强Mie共振,但对于自组装的合体系统存在挑战.
- 单分散性和表面电荷的限制阻碍了元流体油墨的大面积应用.
研究的目的:
- 使用自组装开发高质量的3D Mie共振元晶体.
- 为了增强集体的Mie行为和磁共振.
- 为了证明持久的结构色彩和光学传感的潜力.
主要方法:
- 硫化物 (CdS) 纳米粒子的高温自组装 (折射率2.5).
- 制造远程订制的3D元晶体.
- 使用CdS和硫化 (ZnS) 纳米粒子的元流体墨水进行晶圆尺度喷墨打印.
主要成果:
- 在集体Mie行为中实现了一级大小的增强.
- 证明了磁性米埃共振的13倍增强,质量因子高达17.
- 观察到共存的布拉格峰和增强的集体Mie共振,使得双角度依赖的结构色彩.
- 通过喷墨打印展示了稳定的色彩和对角度敏感的色调.
结论:
- 高温自组装可以产生高质量的3D Mie共振元晶,光学损失最小化.
- 增强的集体Mie行为和磁共振导致优越的结构色彩.
- 可喷墨打印的元流体油墨为耐用,取决于角度的色彩应用和先进的光学平台提供了可扩展的途径.
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