Nanometer-Thick Sol-Gel Silica-Titania Film Infused with Superparamagnetic Fe3O4 Nanoparticles for Electromagnetic Interference Shielding

被引：6
作者：
Chen, Guan-Hong [1 ]
Chen, Hsueh-Shih [1 ]
机构：
[1] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan
来源：
ACS APPLIED NANO MATERIALS | 2020年 / 3卷 / 09期
关键词：
EMI shielding; magnetic nanoparticles; transparent; nanocoating; sol-gel; silica-titania; GAMMA-FE2O3; NANOPARTICLES; MAGNETIC-PROPERTIES; NANOCOMPOSITES; TIO2; COMPOSITES; FERRITE; GLASS;
D O I：
10.1021/acsanm.0c01634
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A synthetic approach to highly transparent magnetic nanocomposite thin film by incorporating magnetic Fe3O4 nanoparticles (NPs) into silica-titania (SixTi1-xO2-y, STO) film in a low-temperature sol-gel process (similar to 90 degrees C) is presented in this study. The optical transmittance of Fe3O4-STO nanocomposite films with a NP concentration of 1-30 wt % is between 99% and 86% at 550 nm. The transparent film possesses a magnetization value as high as 12 emu/g at 0.5 T and exhibits an electromagnetic interference shielding response in the range of 2.6-18 GHz. The highly transparent magnetic thin film with nanometer thickness is derived using the sol-gel method with advantages of low-temperature, feasibility, and cost-effective process, which is promising in practical applications.
引用
收藏
页码：8858 / 8865
页数：8
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