透射率
材料科学
膜
过滤(数学)
光散射
多孔性
光电子学
纳米技术
散射
光学
复合材料
数学
遗传学
生物
统计
物理
作者
Chao Wang,Na Meng,Aijaz Ahmed Babar,Xiaobao Gong,Gaohui Liu,Xianfeng Wang,Jianyong Yu,Bin Ding
出处
期刊:ACS Nano
[American Chemical Society]
日期:2021-12-06
卷期号:16 (1): 119-128
被引量:30
标识
DOI:10.1021/acsnano.1c09055
摘要
Currently, the quest for highly transparent and flexible fibrous membranes with robust mechanical characteristics, high breathability, and good filtration performance is rapidly rising because of their potential use in the fields of electronics, energy, environment, medical, and health. However, it is still an extremely challenging task to realize transparent fibrous membranes due to serious surface light reflection and internal light scattering. Here, we report the design and development of a simple and effective topological structure to create porous, breathable, and high visible light transmitting fibrous membranes (HLTFMs). The resultant HLTFMs exhibit good optical performance (up to 90% transmittance) and high porosities (>80%). The formation of such useful structure with high light transmittance has been revealed by electric field simulation, and the mechanism of fibrous membrane structure to achieve high light transmittance has been proposed. Moreover, transparent masks have been prepared to evaluate the filtration performance and analyze their feasibility to meet requirement of facial recognition systems. The prepared masks display high transparency (>80%), low pressure drop (<100 Pa) and high filtration efficiency (>90%). Furthermore, the person wearing this mask can be successfully identified by facial recognition systems. Therefore, this work provides an idea for the development of transparent, breathable, and high-performance fibrous membranes.
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