Design of ZnS Nanospheres Antireflective Structure for Mid and Far Infrared Applications

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Ceramics International Pub Date : 2024-07-09 DOI:10.1016/j.ceramint.2024.07.104

Shao Hui Xu, Xu Ran Hu, Guang Tao Fei, Jian Yong Huang, Kai Xia, Biao Wang

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Abstract

Developing high-performance mid and far infrared antireflection films is a significant requirement in the field of infrared optics. This study successfully prepared AR films composed of ZnS nanospheres for mid and far infrared bands using a combination of hydrothermal and sol-gel methods. Initially, ZnS nanospheres with uniform size and good monodispersity were synthesized via the hydrothermal method and subsequently coated on CdSe substrate through dip coating. The refractive index of the ZnS film is adjusted between 1.36 and 1.52. A significant AR effect was observed in ZnS nanospheres film on CdSe substrate at 3∼5 μm and 8∼14 μm, and the reflectance is approximately 3% which is about 25% lower than that of the uncoated sample. Upon coating with a TiO₂ protective layer, the reflectivity further decreased to about 0.6% and the film demonstrated excellent weather resistance and mechanical properties. This work provides a novel approach for the preparation and regulation of mid and far infrared AR film, significantly contributing to the development of optical film.

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设计用于中远红外应用的 ZnS 纳米球抗反射结构

开发高性能的中远红外抗反射薄膜是红外光学领域的一项重要要求。本研究采用水热法和溶胶-凝胶法相结合的方法，成功制备了由 ZnS 纳米球组成的中远红外波段抗反射薄膜。首先，通过水热法合成了尺寸均匀、单分散性良好的 ZnS 纳米球，然后通过浸涂法在硒化镉衬底上镀膜。ZnS 薄膜的折射率在 1.36 和 1.52 之间调节。在镉硒基底上的 ZnS 纳米球膜中，3∼5 μm 和 8∼14 μm 处出现了明显的 AR 效应，反射率约为 3%，比未镀膜样品低约 25%。在镀上一层 TiO2 保护层后，反射率进一步降低到约 0.6%，薄膜还表现出优异的耐候性和机械性能。这项工作为制备和调节中远红外 AR 薄膜提供了一种新方法，极大地促进了光学薄膜的发展。

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.