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Cost-effective nanoporous SiO2-TiO2 coatings on glass substrates with antireflective and self-cleaning properties
Miao, Lei1; Su, Li Fen1; Tanemura, Sakae1,2; Fisher, Craig A. J.3; Zhao, Li Li1; Liang, Qing4; Xu, Gang1
2013-12-01
发表期刊APPLIED ENERGY
卷号112页码:1198-1205
摘要Simultaneous antireflective and self-cleaning properties have been realized by depositing double-layered SiO2-TiO2 coatings onto glass substrates using a combined sol-gel dip-coating process in which the two oxide layers were deposited in succession. The first layer is composed of a hybrid methyl-functionalized nanoporous SiO2 material that provides on average a 6% anti-reflection gain. The degree of antireflectivity can be controlled by adjusting the thickness and refractive index by selecting suitable solvents and poreforming agents in the coating mixture. The second layer is an ultrathin TiO2 nanoporous layer deposited on top of antireflective layer. The high hardness of the TiO2 top layer acts as a protection barrier toward mechanical damage and ensures the surface is self-cleaning. An average anti-reflectivity of 3.4% achieved over a spectrum range of 400-800 nm for the optimal SiO2-TiO2 bilayers is obtained. It is found that a homogeneous pore size distribution in the SiO2 layer introduced by using isopropanol as the solvent can compensate for the TiO2 band edge absorption based on the optical interference that occurs between the two layers. These systems are easy to produce on a large scale at low cost and exhibit high mechanical and chemical durability. These materials are thus suitable for use as bifunctional antireflective and self-cleaning coatings for use as large substrates for solar cells. (C) 2013 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Antireflective Self-cleaning Glass Substrate Sol-gel Dip-coating Solar Cell
WOS标题词Science & Technology ; Technology
DOI10.1016/j.apenergy.2013.03.043
研究领域[WOS]Energy & Fuels ; Engineering
关键词[WOS]TIO2 THIN-FILMS ; SEMICONDUCTORS ; DIELECTRICS
收录类别SCI ; ISTP
语种英语
WOS类目Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000329377800130
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/9129
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrates, Guangzhou 510640, Peoples R China
2.Nagoya Inst Technol, Particle Technol Lab, Showa Ku, Nagoya, Aichi 4668555, Japan
3.Japan Fine Ceram Ctr, Atsuta Ku, Nagoya, Aichi 4568587, Japan
4.Henan Polytech Univ, Sch Civil Engn, Jiaozuo 454000, Peoples R China
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Miao, Lei,Su, Li Fen,Tanemura, Sakae,et al. Cost-effective nanoporous SiO2-TiO2 coatings on glass substrates with antireflective and self-cleaning properties[J]. APPLIED ENERGY,2013,112:1198-1205.
APA Miao, Lei.,Su, Li Fen.,Tanemura, Sakae.,Fisher, Craig A. J..,Zhao, Li Li.,...&Xu, Gang.(2013).Cost-effective nanoporous SiO2-TiO2 coatings on glass substrates with antireflective and self-cleaning properties.APPLIED ENERGY,112,1198-1205.
MLA Miao, Lei,et al."Cost-effective nanoporous SiO2-TiO2 coatings on glass substrates with antireflective and self-cleaning properties".APPLIED ENERGY 112(2013):1198-1205.
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