通过具有自清洁和除尘功能的高透明度双功能 SiO2 涂层实现太阳能电池效率的保持

IF 5.3 2区 材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS Surface & Coatings Technology Pub Date : 2024-10-30 DOI:10.1016/j.surfcoat.2024.131437
Bao Guo , Hongjun Kang , Xinzhi Wang , Yitong Duan , Xiaotong Li , Baiqi Gao , Zhiqiang Wang , Yang Li , Songtao Lu , Xiaohong Wu
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引用次数: 0

摘要

解决光伏(PV)面板上的灰尘沉积问题对于提高光伏发电量具有深远的科学意义和实用价值。透明超疏水涂层有望应用于光伏板的自清洁。然而,开发透明超疏水除尘涂层仍是一项挑战。在此,我们开发了一种具有双重自清洁和除尘功能的高透明 F-SiO2 涂层,由聚二甲基硅氧烷(PDMS)和二氧化硅组成。该涂层的透光率高达 97%。经过自清洁和除尘测试后,F-SiO2 涂层光伏的转换效率分别仅降低了 0.03 % 和 0.01 %,显示出卓越的自清洁和除尘性能。此外,F-SiO2 还具有很高的稳定性。除尘性能的机理分析表明,多孔结构降低了有效介电常数,减少了颗粒与超疏水表面的实际接触面积,从而有效降低了灰尘与涂层之间的范德华力。这项研究为在光伏盖板上制备自清洁除尘涂层提供了一种新策略。
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Maintaining solar cell efficiency realized by high-transparency dual-function SiO2 coating with self-cleaning and dust removal
Addressing the issue of dust deposition on photovoltaic (PV) panels is of profound scientific significance and practical value for enhancing PV power generation. Transparent superhydrophobic coating is expected to be applied in the self-cleaning of PV panels. However, developing the transparent superhydrophobic dust removal coatings remains a challenge. Herein, we developed a highly transparent F-SiO2 coating with dual self-cleaning and dust removal functions, composed of polydimethylsiloxane (PDMS) and SiO2. The coating demonstrates a high transmittance of 97 %. After self-cleaning and dust removal tests, conversion efficiency of F-SiO2 coated PV decreased by only 0.03 % and 0.01 %, respectively, demonstrating excellent self-cleaning and dust removal performance. Additionally, the F-SiO2 exhibits high stability. Mechanism analysis of dust removal performance reveals that the decreased effective dielectric constant from the porous structure and the reduced actual contact area between the particles and the superhydrophobic surface, thereby effectively reduces the van der Waals force between dust and coating. This work provides a novel strategy to prepare self-cleaning and dust removal coatings on PV cover plate.
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来源期刊
Surface & Coatings Technology
Surface & Coatings Technology 工程技术-材料科学:膜
CiteScore
10.00
自引率
11.10%
发文量
921
审稿时长
19 days
期刊介绍: Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.
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