具有优异可见光热致变色性能的二氧化钒纳米粒子和离子液体-镍-氯络合物复合膜。

Composite Film of Vanadium Dioxide Nanoparticles and Ionic Liquid-Nickel-Chlorine Complexes with Excellent Visible Thermochromic Performance.

机构信息

State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Dingxi 1295, Changning, Shanghai, 200050, China.

University of Chinese Academy of Sciences , Yuquan 19, Shijingshan, Beijing, 100049, China.

出版信息

ACS Appl Mater Interfaces. 2016 Nov 2;8(43):29742-29748. doi: 10.1021/acsami.6b11202. Epub 2016 Oct 24.

DOI:10.1021/acsami.6b11202

PMID:27739664

Abstract

Vanadium dioxide (VO), as a typical thermochromic material used in smart windows, is always limited by its weaker solar regulation efficiency (ΔT) and lower luminous transmittance (T). Except for common approaches such as doping, coating, and special structure, compositing is another effective method. The macroscopic thermochromic (from colorless to blue) ionic liquid-nickel-chlorine (IL-Ni-Cl) complexes are selected in this paper to be combined with VO nanoparticles forming a composite film. This novel scheme demonstrates outstanding optical properties: ΔT = 26.45% and T = 66.44%, T = 43.93%. Besides, the addition of the IL-Ni-Cl complexes endows the film with an obvious color change from light brown to dark green as temperature rises. This splendid visible thermochromic performance makes the composite film superior in function exhibiting and application of smart windows.

摘要

二氧化钒（VO）作为一种典型的用于智能窗户的热致变色材料，其太阳调节效率（ΔT）较弱和光透射率（T）较低一直受到限制。除了掺杂、涂层和特殊结构等常见方法外，复合化是另一种有效的方法。本文选择宏观热致变色（从无色变为蓝色）离子液体-镍-氯（IL-Ni-Cl）配合物与 VO 纳米粒子复合形成复合薄膜。这种新颖的方案展示了出色的光学性能：ΔT = 26.45%和 T = 66.44%，T = 43.93%。此外，IL-Ni-Cl 配合物的加入使薄膜在温度升高时呈现出明显的颜色变化，从浅棕色变为深绿色。这种出色的可见热致变色性能使复合薄膜在智能窗户的功能展示和应用方面具有优势。