Tunable Transparency and NIR-Shielding Properties of Nanocrystalline Sodium Tungsten Bronzes
| Autor: | Jia Liu, Luomeng Chao, Changwei Sun, Jiaxin Li, Jianyong Dou, Lihua Xiao, Yong-Hong Ma |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
General Chemical Engineering Nanoparticle chemistry.chemical_element 02 engineering and technology Tungsten Discrete dipole approximation 010402 general chemistry sodium tungsten bronzes 01 natural sciences Article lcsh:Chemistry General Materials Science Optical filter Absorption (electromagnetic radiation) business.industry 021001 nanoscience & nanotechnology Nanocrystalline material 0104 chemical sciences lcsh:QD1-999 tunable optical properties chemistry Extinction (optical mineralogy) Optoelectronics nanoparticles Nanometre 0210 nano-technology business |
| Zdroj: | Nanomaterials Volume 11 Issue 3 Nanomaterials, Vol 11, Iss 731, p 731 (2021) |
| ISSN: | 2079-4991 |
| DOI: | 10.3390/nano11030731 |
| Popis: | The NaxWO3 nanoparticles with different x were synthesized by a solvothermal method and the absorption behavior in visible and near-infrared light (NIR) region was studied. Well-crystallized nanoparticles with sizes of several tens of nanometers were confirmed by XRD, SEM and TEM methods. The absorption valley in visible region shifted from 555 nm to 514 nm and the corresponding absorption peak in NIR region shifted from 1733 nm to 1498 nm with the increasing x. In addition, the extinction behavior of NaxWO3 nanoparticles with higher x values were simulated by discrete dipole approximation method and results showed that the changing behavior of optical properties was in good agreement with the experimental results. The experimental and theoretical data indicate that the transparency and NIR-shielding properties of NaxWO3 nanoparticles in the visible and NIR region can be continuously adjusted by x value in the whole range of 0 < x < 1. These tunable optical properties of nanocrystalline NaxWO3 will expand its application in the fields of transparent heat-shielding materials or optical filters. |
| Databáze: | OpenAIRE |
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