New luminescent solar concentrator windows using PMMA-InP/ZnS Nanohybrid coating films for green building applications

IF 3 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materialia Pub Date : 2024-11-10 DOI:10.1016/j.mtla.2024.102292

Mohammed Alyami , Nada T Mahmoud , Rached Habib , Samah El-Bashir

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引用次数: 0

Abstract

Green fluorescing PMMA-InP/ZnS nanohybrid coating films were applied onto FTO glass substrates through the traditional spin coating technique for the development of luminescent solar concentrator windows. Examination using transmission electron microscopy (TEM) displayed good morphology and uniform dispersion of InP/ZnS quantum dots (QDs) in PMMA matrix, whereas X-ray diffraction (XRD) indicated the amorphous nature and good adhesion to FTO glass substrate. Investigations of the influence of varying QD concentrations on spectral photophysical characteristics were conducted using techniques such as optical absorption, transmission, fluorescence spectroscopy, and the chromaticity diagram (CIE 1931). The films exhibited good transparency in the visible spectrum, approximately 87 %, with reduced transparency in the near-infrared (NIR) region, approximately 26 %. The films have various shades of green colors closely aligned with the sensitivity of the human eye, as demonstrated by CIE 1931 chromaticity diagram. Skin depth calculations spanning the UV to NIR wavelengths (200-2400 nm) showed a marked decrease in electromagnetic wave penetration correlating with increased InP-ZnS QD concentrations. Fluorescence spectroscopy revealed the highest fluorescence intensity and quantum yield of 71 % for QDs concentration of

0.15 w t %

coupled with outstanding photostability properties after exposure to UVA radiation (365 nm) for 72 h. This optimization effectively reduces the infiltration of detrimental solar radiation into buildings, encompassing ultraviolet and infrared wavelengths. The research outcomes are consistent with the objectives of Sustainable Development Goals SDG7 and SDG 11, in sun-drenched regions such as Saudi Arabia, as PMMA-InP/ZnS nanohybrid coating films can be tailored to meet the spectral needs of energy-efficient windows.

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使用 PMMA-InP/ZnS 纳米杂化镀膜的新型发光太阳能聚光窗，适用于绿色建筑应用

通过传统的旋涂技术，将绿色荧光 PMMA-InP/ZnS 纳米杂化镀膜应用于 FTO 玻璃基板，用于开发发光太阳能聚光器窗口。使用透射电子显微镜（TEM）进行的检查显示，InP/ZnS 量子点（QDs）在 PMMA 基质中具有良好的形态和均匀的分散性，而 X 射线衍射（XRD）则表明其无定形性质以及与 FTO 玻璃基质的良好粘附性。利用光吸收、透射、荧光光谱和色度图（CIE 1931）等技术，研究了不同 QD 浓度对光谱光物理特性的影响。薄膜在可见光谱中表现出良好的透明度，约为 87%，而在近红外（NIR）区域的透明度有所降低，约为 26%。如 CIE 1931 色度图所示，薄膜的各种绿色色调与人眼的敏感度非常接近。从紫外线到近红外波长（200-2400 纳米）的皮肤深度计算显示，电磁波穿透力随着 InP-ZnS QD 浓度的增加而明显下降。荧光光谱显示，当 QDs 的浓度为 0.15wt% 时，荧光强度最高，量子产率达 71%，而且在紫外线辐射（365 纳米）下暴露 72 小时后，光稳定性能突出。研究成果符合沙特阿拉伯等阳光普照地区的可持续发展目标（SDG7）和可持续发展目标（SDG11），因为 PMMA-InP/ZnS 纳米杂化涂层薄膜可以量身定制，以满足节能窗户的光谱需求。

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

Materialia MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.40

自引率

2.90%

发文量

345

审稿时长

36 days

期刊介绍： Materialia is a multidisciplinary journal of materials science and engineering that publishes original peer-reviewed research articles. Articles in Materialia advance the understanding of the relationship between processing, structure, property, and function of materials. Materialia publishes full-length research articles, review articles, and letters (short communications). In addition to receiving direct submissions, Materialia also accepts transfers from Acta Materialia, Inc. partner journals. Materialia offers authors the choice to publish on an open access model (with author fee), or on a subscription model (with no author fee).