Surface Engineering of Titanium Dioxide Nanoparticles for Silicone-Based Transparent Hybrid Films with Ultrahigh Refractive Indexes,Langmuir

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Surface Engineering of Titanium Dioxide Nanoparticles for Silicone-Based Transparent Hybrid Films with Ultrahigh Refractive Indexes
Langmuir ( IF 3.7 ) Pub Date : 2021-02-16 , DOI: 10.1021/acs.langmuir.0c03377
Xianglei He _{1,

2} , Yuan Pu ₂ , Jie-Xin Wang _{1,

2} , Dan Wang ₁ , Jian-Feng Chen _{1,

2}

Affiliation

We report a newly developed surface engineering approach for TiO₂ nanoparticles toward transparent TiO₂/silicone nanocomposites with high refractive index (RI) values. Zirconate coupling agents are adopted on the TiO₂ nanoparticles for surface passivation and to enhance the dispersibility of the nanoparticles in organic substrates. The modified TiO₂ nanoparticles can be uniformly dispersed in silicone, forming transparent hybrid films with an ultrahigh RI of 2.01. The preparation technique of colloidal TiO₂ and polymer-based nanocomposites is simple and suitable for scalable production, which is promising for expanding the application of TiO₂ materials in photonic devices.

中文翻译：

具有超高折射率的有机硅基透明杂化膜用二氧化钛纳米粒子的表面工程

我们报告了新开发的表面工程方法，用于向具有高折射率（RI）值的透明TiO ₂ /有机硅纳米复合材料的TiO ₂纳米粒子。在TiO ₂纳米颗粒上采用锆酸酯偶联剂进行表面钝化，以增强纳米颗粒在有机基质中的分散性。改性的TiO ₂纳米颗粒可以均匀地分散在有机硅中，形成具有2.01的超高RI的透明杂化膜。胶体TiO ₂和聚合物基纳米复合材料的制备技术简单易行，适合规模化生产，有望扩大TiO ₂材料在光子器件中的应用。

更新日期：2021-03-02

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