文献类型：期刊文献

英文题名：Tunable Transparency and NIR-Shielding Properties of Nanocrystalline Sodium Tungsten Bronzes

作者：Chao, Luomeng Sun, Changwei Dou, Jianyong Li, Jiaxin Liu, Jia Ma, Yonghong Xiao, Lihua

第一作者：Chao, Luomeng

通信作者：Ma, YH[1];Xiao, LH[2]|[14440d72ac22ae53efacd]肖立华;

机构：[1]Inner Mongolia Univ Sci & Technol, Coll Sci, Baotou 014010, Peoples R China;[2]Guizhou Inst Technol, Guiyang 550003, Peoples R China

第一机构：Inner Mongolia Univ Sci & Technol, Coll Sci, Baotou 014010, Peoples R China

通信机构：corresponding author), Inner Mongolia Univ Sci & Technol, Coll Sci, Baotou 014010, Peoples R China;corresponding author), Guizhou Inst Technol, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2021

卷号：11

期号：3

起止页码：1-10

外文期刊名：NANOMATERIALS

收录：;Scopus(收录号：2-s2.0-85102450039);WOS:【SCI-EXPANDED(收录号:WOS:000633939700001)】；

基金：This research was funded by the National Natural Science Foundation of China (Grant No. 51776046), the Natural Science Foundation of Inner Mongolia (Grant No.2019MS05015), the Innovation Fund of Inner Mongolia University of Science and Technology (Grant No. 2019QDL-B35), the Guizhou Provincial Science and Technology Foundation (20191133) and the Youth Science and Technology Talent Development Fund in Guizhou Provincial Department of Education (2018250).

语种：英文

外文关键词：sodium tungsten bronzes; nanoparticles; tunable optical properties

摘要：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.