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何乐教授课题组、张晓宏教授课题组与加拿大多伦多大学Geoffrey A. Ozin教授课题组合作在Advanced Materials上发表论文
发布时间:2019-05-15 点击:20

题目:

Single-Simulus-Induced Modulation of Multiple Optical Properties


作者:

Hai Li1†, Chaoran Li1†, Wei Sun2, Yuzhu Wang3, Wenqiang Hua3, Jingjing Liu1, Shumin Zhang1, Zhijie Chen1, Shenghua Wang1, Zhiyi Wu1, Qishan Zhu4, Rujun Tang4, Jia Yu1, Le He1*, Geoffrey A. Ozin2* and Xiaohong Zhang1*


单位:

1Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Road, Suzhou, Jiangsu 215123, People’s Republic of China

2Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster, Departments of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada

3Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China

4Jiangsu Key Laboratory of Thin Films, College of Physics, Optoelectronics and Energy, Soochow University, Suzhou, 215006, Jiangsu, PR China


摘要:

Stimuli-responsive smart optical materials hold great promise for applications in active optics, display, sensing, energy conversion, military camouflage, and artificial intelligence. However, their applications are greatly restricted by the difficulty of tuning different optical properties within the same material, especially by a single stimulus. Here, magnetic modulations of multiple optical properties are demonstrated in a crystalline colloidal array (CCA) of magnetic nanorods. Small-angle X-ray scattering studies reveal that these nanorods form an unusual monoclinic crystal in concentrated suspensions. The CCA exhibits optical anisotropy in the form of a photonic bandgap and birefringence, thus enabling magnetic tuning of the structural color and transmittance at a rate of 50 Hz. As a proof-of-concept, it is further demonstrated that the fabrication of a multifunctional device for display, anticounterfeiting, and smart-window applications based on this multiple magneto-optical effect. The study not only provides a new model system for understanding colloidal assembly, but also opens up opportunities for new applications of smart optical materials for various purposes.


影响因子:

21.950


分区情况:



链接:

https://onlinelibrary.wiley.com/doi/pdf/10.1002/adma.201900388



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