MATERIALS LETTERS
·
2017
·
IF 2.572
Zihan Ji,Lei Bao,Hongning Wang,Ruoyu Chen
Antireflective films with self-cleaning and abrasion-resistance properties show good performance in outdoor contaminated environments. In this paper, hollow rod-like MgF 2 sol was synthesized using the solvothermal method and 50 nm SiO 2 particle sol was prepared using the Stöber method. The SiO 2 -MgF 2 mixed sol was prepared by adjusting the zeta potential of the two sols, and then the SiO 2 -MgF 2 mixed films were coated on the glass using the dip-coating method. The maximum transmittance was 99.4% and the average transmittance was 97.5% in 400–800 nm wavelength regions. After the films were modified by n-hexadecyltrimethoxysilane (HDTMOS), the contact angle reached 150.2°, and the pencil hardness reached 4–5 H. In this way, the multi-functional antireflective films were endowed with significant practical value.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
Soft Matter
·
2021
·Vol. 17
·期 18
·4730-4737
·
IF 3.679
Hao Sun,Xin Li,Jun Chen,Haiyan Zhu,Hongyan Miao,Ying Li,Xuefeng Liu,Gang Shi
For the solar water evaporation system, there are no reports on the self-healing support, which is crucial for the sustainable use of solar evaporation membrane. In this work, a self-healing hydrogel is prepared via free radical copolymerization with covalent cross-linking and coordination cross-linking and is used as a photothermal water evaporation support. The photothermal material is then introduced into the hydrogel by physically doping acetylene carbon black. At the same time, inverted micro-pyramids are fabricated on the surface of the hydrogel by soft imprint to increase the utilization efficiency of incident light. The water evaporation rate of the composite membrane can reach 1.58 kg m−2 h−1, and the breaking elongation is 1580%. It can self-heal after it is completely broken, and can still be stretched 3 times its original length. The design of this self-healing photothermal membrane will provide a new idea for its application in a harsh outdoor environment.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Jiahao Wu,Jielei Tu,Hua Yang,Hao Wu,Zhangyang Xv,Weichen Wang
The efficiency of photovoltaic (PV) modules, the core unit for converting solar energy to electricity, is limited by the reflection loss of the glass cover and the adsorption of organic pollutants. Thus, the development of coatings with antireflective and self-cleaning composite functions is important. In this study, based on the sol-gel method, hollow MgF 2 /TiO 2 (MgF 2 @TiO 2 ) composites were prepared and, combined with the Essential Macleod software, coatings were designed and optimized. Using this approach, a three-layer antireflective coating with a self-cleaning function was developed. Moreover, subjecting the MgF 2 @TiO 2 composites to 24 h heat treatment resulted in the production of MgF 2 with a stable hollow rod structure and a refractive index of 1.18. The photocatalytic performance of TiO 2 was enhanced by optimizing the annealing temperature, and the strongest effect was achieved at 300 °C. In addition, the optimization of the coating structure resulted in a gradient refractive index coating with high process tolerance, with an average reflectance of 0.81% in the visible wavelength band. The application of the coating to mini-PV modules increased the light transmittance to 97.58% and the efficiency of the module by 5.71%, with a strong self-cleaning effect. The coating was demonstrated to have excellent durability and reliability upon exposing it to 2000 h of damp heat and subjecting it 1000 abrasion cycles. This study promotes the design and application of functional coatings on the surfaces of PV modules.
研究领域:
材料科学
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能源技术
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Yuxi Zhao,Jinkai xu,Guantong Wang,Qianqian Cai,Haiyan Zheng
Superhydrophobicity facilitates improved corrosion resistance and self-cleaning properties of material surfaces. Titanium alloys with excellent strength, hardness and robustness are extensively employed to prepare superhydrophobic structures. Herein, titanium alloy surfaces featuring bionic moth-eye micro- and nanocomposite structures were constructed by composite method of laser processing, hydrothermal treatment and further chemical modification phase. The average reflectance decreases up to 48.7 % in the wavelength range of 450–1000 nm for bionic moth-eye micro- and nanocomposite structured titanium alloy surface compared to the untreated titanium alloy. Corrosion performance increased by an order of magnitude and corrosion protection efficiency up to 76.5 % is achievable resulting from the reduced solid-liquid contact area created from the air cavities on the superhydrophobic surface. It provides an effective approach for preparing multifunctional superhydrophobic surfaces with micro- and nanocomposite structures on titanium alloy substrates.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
Silicon
·
2025
·
IF 3.3
Li Zhaorui,Li Zhiqiang,Wu Yonghong,Zhu Wenle,Nie Lifang,Liu Juncheng
To improve the efficiency of solar cells, antireflective films require not only high optical properties but also high mechanical properties. The antireflective films were prepared by tetraethylorthosilicate (TEOS) and methyltriethoxysilane (MTES) as precursors and fatty alcohol polyoxyethylene ether (AEO) as the porogen. The microstructures, optical properties, and mechanical properties of the prepared antireflective films were examined. The results indicated that the AEO volume ratio had an obvious effect on film porosity, refractive index and average transmittance. With the increase of AEO content, the film’s porosity and the average transmittance firstly increased then decreased, the refractive index firstly decreased then increased in the wavelength range of 400–1100 nm. In the meanwhile, both the film’s surface hardness and adhesion strength increased with the increasing of the AEO addition. When the volume ratio of AEO is 45%, the porosity of the film is 48%,the refractive index value for 550 nm wavelength is 1.26and the maximum transmittance is 98.50%.The highest amount of light passing through a material, also known as transmittance, is recorded at an average of 91.98%within the wavelength range of 400–1100 nm, which is 4.64%higher than that of blank glass. In addition, the hardness of the film reaches the highest level for soft films 9H, and its adhesion strength also reaches the highest level of the tape method, 0 grade.
研究领域:
材料科学
·
太阳能技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Wenjun Wang,Jiang Li,Rongheng Li,Benqiang Li,Xuesong Mei,Xuefeng Sun
Fabrication of a hierarchical macro-/micro-/nano compound eye is presented in this paper. This bioinspired compound (BIC) eye is obtained by an integrated manufacturing technology that combines (i) nanoimprinting, (ii) picosecond laser swelling, and (iii) air-assisted deformation. The diameter and height of nanopillars, microlens, and macrobase can be controlled precisely by fine-tuning the process parameters. The multifunctional properties of the BIC eye, such as superhydrophobicity, antireflection, and other optical characteristics, are investigated. It is found that the microlens with nanopillars can effectively improve the surface wettability with a contact angle of 152° and contact angle hysteresis of 12°, and enhance transmittance by 2% over the wavelength range of 200–1200 nm. Moreover, the final hierarchical compound eye exhibits the excellent imaging properties and a wide field-of-view of 120° without distortion. These multifunctional properties will enable the widespread application of the compound eye in diverse real-time environmental conditions.
研究领域:
材料科学
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光学工程
·
生物仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanomaterials
·
2023
·Vol. 13
·期 12
·1855
·
IF 5.3
Zhibin Jiao,Ze Wang,Zhaozhi Wang,Zhiwu Han
Antireflective and self-cleaning coatings have attracted increasing attention in the last few years due to their promising and wider applications such as stealth, display devices, sensing, and other fields. However, existing antireflective and self-cleaning functional material are facing problems such as difficult performance optimization, poor mechanical stability, and poor environmental adaptability. Limitations in design strategies have severely restricted coatings’ further development and application. Fabrication of high-performance antireflection and self-cleaning coatings with satisfactory mechanical stability remain a key challenge. Inspired by the self-cleaning performance of nano-/micro-composite structure on natural lotus leaves, SiO2/PDMS/matte polyurethane biomimetic composite coating (BCC) was prepared by nano-polymerization spraying technology. The BCC reduced the average reflectivity of the aluminum alloy substrate surface from 60% to 10%, and the water contact angle (CA) was 156.32 ± 0.58°, illustrating the antireflective and self-cleaning performance of the surface was significantly improved. At the same time, the coating was able to withstand 44 abrasion tests, 230 tape stripping tests, and 210 scraping tests. After the test, the coating still showed satisfactory antireflective and self-cleaning properties, indicating its remarkable mechanical stability. In addition, the coating also displayed excellent acid resistance, which has important value in aerospace, optoelectronics, industrial anti-corrosion, etc.Keywords:biomimetic coating;antireflective;self-cleaning;abrasion resistance;micro-/nano-structure
研究领域:
材料科学
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表面工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2021
·
IF 6.141
Haofeng Lin,Zeyu Qiu,Peinian Huang,Longlong Zeng,Yunfeng Liang,Chunhong Zeng,Ruixi Lin,Mingyu Yuan,Ruijiang Hong
Optical coatings with tunable refractive indices (RIs) are of significant interest in the field of optics. However, it is still a challenge to fabricate such coatings conveniently and economically. Here, through a sol-gel method combined with a novel process, evaporation concentration, antireflective (AR) coatings with easily tunable RI, robust resistance to moisture and high transparency were prepared based on hollow silica nanoparticles (HSNs). A mechanism of particle growth and film formation was proposed to explain the morphologies of HSNs and coatings as well as the optical and hydrophobic properties of the coatings. By adjusting the concentration degree and MTES content, the RI and the water contact angle (WCA) of the obtained coatings were increased to 1.28 and 102.1°, respectively. Over a broad range of wavelengths, from 400 to 1100 nm, the maximum average transmittance of the coated glasses reached 97.52%, more than a 6% increase compared with that of uncoated low-iron glass. The methodology used to prepare such coatings with relatively outstanding AR properties and hydrophobic effects does not require any expensive equipment or time-consuming process, making it well suited for industrial production.
研究领域:
光学材料
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纳米技术
·
表面科学
✓ 已验证
DOI
高影响因子
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2024
·
IF 4.2
Wanjiang Jin,Xinyu Tan,Qihao Dai,Tao Li,Lihua Jiang,Ting Xiao,Weifeng Chen
Transparent self-cleaning coatings have garnered significant attention for their promising prospects in outdoor applications, particularly in solar panels and high-end optical devices. However, existing technologies still grapple with the challenges of achieving high transmittance and superior weather resistance. Therefore, developing cost-effective coatings that possess both high transparency and excellent durability is paramount. A novel method for synthesizing an anti-reflective (AR) coating is presented in this paper, offering simplicity, cost-efficiency, and high performance. By merging acid-base catalyzed sol-gel chemistry with the dip-coating process, the coating's transparency, durability, and hydrophobicity are notably improved. Production time is significantly reduced through process optimization. The AR coating achieves an exceptional transmittance of 97.3 % at 620 nm, a 6.7 % increase over that of untreated glass. Furthermore, its 145° water contact angle demonstrates excellent hydrophobicity and self-cleaning properties. Mechanical stability tests indicate that the coating retains over 96 % transmittance even after 30 tape adhesion cycles. Long-term UV exposure tests reveal that the coating's transmittance and contact angle remain almost unchanged, underscoring its superior environmental stability and weather resistance. Additionally, the coating enhances the transmittance of multi-crystalline silicon (mc-Si) solar cells compared to commercial glass, boosting the photovoltaic conversion efficiency from 11.04 % to 11.81 %, an increase of 7 %. With these exceptional properties, this coating holds significant potential for applications in mc-Si solar cells and high-end optical devices, providing the industry with an efficient and economical solution.
研究领域:
材料科学
·
可再生能源
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Mei Duan,Xianglong Pang,Fei Hao,Heng Liu,Xinxin Cui,Jingyi Duan,Wen Wang,Xiaoguang Li
Biofouling poses a notorious challenge during photosynthetic microorganism cultivation in photobioreactors (PBRs) by hindering light penetration, degrading the cultivation environment and eventually diminishing bioproductivity. To solve this problem, we developed a superhydrophobic SiO2 coating with antireflective properties using sol–gel technology. The coating is cost-effective due to its simple, fluorine-free, and heat-free fabrication process, showing excellent performance in both preventing cyanobacterial adhesion and enhancing light transmission. Compared to uncoated substrates, the transmittance increases by 5.8 to 7.0%, depending on the substrate material (glass, polystyrene, poly(vinyl chloride) and polycarbonate). When applied to glass tube PBRs, this coating significantly promotes cyanobacterial proliferation and chlorophyll-a content compared to uncoated PBRs and those with rough superhydrophobic coatings that compromise transparency. These results underscore the critical roles of both antifouling and antireflective properties in optimizing the cultivation of photosynthetic microorganisms, and suggest the potential applications of the proposed coating in the cyanobacterial industry and other bioculture domains.
研究领域:
微生物学
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材料科学
·
环境工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2019
·
IF 6.019
Jing Zhang,Ling Ai,Shenghua Lin,Pinjun Lan,Yuehui Lu,Ning Dai,Ruiqin Tan,Bin Fan,Weijie Song
Antireflection (AR) coatings on solar glass, used in photovoltaic (PV) modules, generally encounter harsh environments, which demands that AR coatings must hinder moisture penetration , scratch damage, and dust accumulation. Though chemical modification generally benefits the multi-functionalization of AR coatings, it is likely to bring about a degradation of optical and mechanical properties. We demonstrated that a well-controlled dual precursor modification/hybridization process of hollow silica nanospheres was the key to achieve the robust multifunctional AR coatings. The dual precursor-derived AR coatings exhibited an increase of 5.08% in average transmittance at wavelengths from 300 to 1200 nm and a small relative reduction below 0.6% after an ultra-long highly-accelerated humidity and temperature stress test duration of 120 h, equivalent to a 5000 h damp heat test at a temperature and a relative humidity of 85 °C and 85%, respectively, as well as the excellent abrasion and dust resistance. The effects of the dual precursor-derived AR coatings on PV devices were evaluated by the encapsulated crystalline silicon mini-modules, where the improvements of 2.45% and 3.20% in the short-circuit current and the power conversion efficiency ( J sc and PCE) on average, respectively, relative to the bare glass encapsulated mini-modules were observed; meanwhile, the dust resistance of the AR coatings brought about the less degradations of 1.01% and 1.15% in J sc and PCE, respectively, after the dust settling and removal tests, while the mini-modules with bare glass were 3.45% and 4.40%. It was believed that the dual-precursor, potentially, multi-precursor protocols would pave the way towards developing mechanically robust AR coatings with various fascinating functionalities, such as anti-fingerprint, anti-soiling, anti-fogging, and anti-icing.
研究领域:
材料科学
·
光伏技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2015
·Vol. 3
·期 12
·2897-2908
·
IF 4.696
Jun Peng,Yuxiu Xing,Kai Xu,Weihong Lin,Jiancheng Wu,Zhiwei Yu,Youxiong Zhang,Mingcai Chen
In this work, a facile strategy to fabricate double-layer nano-wrinkled structures by coupling the polymeric surface onto silsesquioxane rigid templates has been proposed. Aza-Michael addition was applied to construct the bulk layer by using octakis(aminophenyl) silsesquioxane (OAPS) and decakis(methacryloxypropyl) silsesquioxane (CMSQ-T10). Subsequently, a top layer was fabricated through free-radical polymerization of octakis(methacryloxypropyl) silsesquioxane (CMSQ-T8) and hexafluorobutyl acrylate (HFBA). For the first time, well defined nanoisland structures were achieved via reaction-induced assembly of two kinds of silsesquioxane cages in the rigid layer, which could further serve as an in situ template or a scaffold for top polymerization. As a result, the template role of the bulk layer and compressive stress caused by mismatch of different volumetric shrinkages of reactions between top and bulk layers led to the double-layer nano-wrinkled structures, which could be observed using a Field Emission Scanning Electron Microscope (FE-SEM) and an Atomic Force Microscope (AFM). Moreover, by tuning bilayer formulations, controllable nano-wrinkled structures can be obtained. The minimum reflectance of resulting nano-wrinkled surface is decreased to 3.51 ± 0.03% (maximum transmittance 98.51 ± 0.02%). Furthermore, the resulting surface shows obvious hydrophobicity and superior thermal stability, thus suggesting its potential use as antireflective surfaces in optical devices, solar cells and various optoelectronic devices.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）