ZnO-Ag/SiO2 blue light blocking films prepared at relatively low temperature

IF 2.3 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Sol-Gel Science and Technology Pub Date : 2024-08-14 DOI:10.1007/s10971-024-06506-6

Xingyang Wu, Weidong Qiao, Jiaqi Yu, Hongdong Wang, Jianhua Zhang

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Abstract

With the increasing application of display and illumination devices, the injury of blue light to human eyes have attracted more and more attention. The current absorptive anti-blue light films require high preparation temperatures. This study prepared ZnO-Ag nanofilms by sol–gel method at relatively low temperature, 250 °C. The films were further enhanced with SiO₂ protective layer under 200 °C to improve the mechanical properties and stability, and the transmittance was investigated. The results showed that the films blocked 50.4% of blue light at wavelengths of 415–455 nm while maintained an impressive average transmittance of 98% for visible light in the range of 500–800 nm. The films had no visual effect on the display quality and the color rendering index increased only from 80.3 to 83.4, but it reduced 25% of blue light-weighted irradiance. Additionally, the films exhibited a high stability when exposed to a high temperature and humid environment (85 °C and 85% RH). Rubbing with a Teflon ball at a load of 0.5 N and a linear speed of 80 mm/min for 30 min did not show significant damage. Finally, the damage to epithelial cells exposed to blue light in the presence of the developed film was greatly alleviated.

Graphical Abstract

Abstract Image

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在相对较低温度下制备的 ZnO-Ag/SiO2 阻蓝光薄膜

随着显示和照明设备应用的不断增加，蓝光对人眼的伤害越来越受到人们的关注。目前的抗蓝光吸收薄膜需要较高的制备温度。本研究采用溶胶-凝胶法在相对较低的温度（250 °C）下制备了 ZnO-Ag 纳米薄膜。在 200 ℃ 下用二氧化硅保护层进一步增强了薄膜的机械性能和稳定性，并对其透射率进行了研究。结果表明，薄膜在波长为 415-455 纳米时阻挡了 50.4% 的蓝光，而在波长为 500-800 纳米的可见光中保持了 98% 的平均透射率，令人印象深刻。薄膜对显示质量没有视觉影响，显色指数仅从 80.3 提高到 83.4，但却降低了 25% 的蓝光加权辐照度。此外，薄膜在高温潮湿环境（85 °C、85% RH）中表现出很高的稳定性。用特氟龙球以 0.5 牛顿的负载和 80 毫米/分钟的线速度摩擦 30 分钟，也没有发现明显的损伤。最后，在显影薄膜存在的情况下，暴露在蓝光下的上皮细胞受到的损伤大大减轻。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Sol-Gel Science and Technology 工程技术-材料科学：硅酸盐

CiteScore

4.70

自引率

4.00%

发文量

280

审稿时长

2.1 months

期刊介绍： The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.