Room-Temperature Synthesis of Inorganic–Organic Hybrid Coated VO2 Nanoparticles for Enhanced Durability and Flexible Temperature-Responsive Near-Infrared Modulator Application,ACS Applied Materials & Interfaces

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Room-Temperature Synthesis of Inorganic–Organic Hybrid Coated VO2 Nanoparticles for Enhanced Durability and Flexible Temperature-Responsive Near-Infrared Modulator Application
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-02-18 00:00:00 , DOI: 10.1021/acsami.8b19881
Shuwen Zhao _{1,

2} , Ying Tao _{1,

3} , Yunxiang Chen _{1,

2} , Yijie Zhou _{1,

2} , Rong Li _{1,

2} , Lingling Xie _{1,

4} , Aibin Huang ₁ , Ping Jin _{1,

3} , Shidong Ji ₁

Affiliation

Vanadium dioxide is one kind of desirable infrared modulator for sensors because of its remarkable temperature-responsive infrared modulation ability via autogeneic metal–insulator transition. However, the detriments of poor chemical stability and narrow scope of extensive-researched application (e.g., smart windows) restrict its mass production. Here, we propose a VO₂@MgF₂@PDA inorganic–organic hybrid coated architecture for greatly enhancing the optical durability more than 13 times in contrast to pristine VO₂ and the transmittance difference between room and high temperature changed within 20% (decreasing from 25 to 20.1%) at λ = 1200 nm after the ageing time of 1000 h at constant temperature (60 °C) and relative humidity (90%). Furthermore, based on the as-synthesized durability-enhanced nanoparticles, we fabricated a flexible sensor for temperature-field fluorescence imaging by integrating the VO₂-based near-infrared modulator with the upconversion fluorescence material. Additionally, the formation mechanism of VO₂@MgF₂ core–shell nanoparticles was studied in detail. The inorganic–organic combination strategy paves a new way for improving the stability of nanoparticles, and the use of VO₂-based flexible temperature-fluorescence sensors is a promising technique for remote and swift temperature-field distribution imaging on complicated and campulitropal surfaces.

中文翻译：

室温合成无机-有机杂化涂层的VO ₂纳米颗粒，以增强耐用性和灵活的温度响应型近红外调制器的应用

二氧化钒是一种理想的传感器红外调制器，因为它通过自生金属-绝缘体转变具有出色的温度响应红外调制能力。然而，不良的化学稳定性和广泛研究的应用（例如，智能窗户）的狭窄范围的局限性限制了其的批量生产。在这里，我们提出了VO ₂ @MgF ₂ @PDA无机-有机杂化涂层体系结构，与原始VO ₂相比，其光学耐久性大大提高了13倍以上在恒温（60°C）和相对湿度（90％）下老化1000 h后，在λ= 1200 nm处，室温与高温之间的透射率差在20％以内（从25减小至20.1％）。此外，基于合成后的耐用性增强的纳米颗粒，我们通过将基于VO ₂的近红外调制器与上转换荧光材料集成在一起，制造了用于温度场荧光成像的柔性传感器。此外，还详细研究了VO ₂ @MgF ₂核壳纳米粒子的形成机理。无机-有机结合策略为改善纳米颗粒的稳定性和VO ₂的使用开辟了一条新途径基于柔性的温度荧光传感器是一种在复杂的和偏斜的表面上进行远程和快速温度场分布成像的有前途的技术。

更新日期：2019-02-18

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