REACTIVE & FUNCTIONAL POLYMERS
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2022
·
IF 4.966
Beiping Dong,Ziang Li,Juncheng Liu,Lifang Nie
Coating antireflection film on the surface of glass cover is one of the important methods to improve the photoelectric conversion efficiency of solar cells. Sol-gel method is suitable for low cost and large area preparation of antireflection film. However, most of antireflective films prepared with sol-gel have not enough good mechanical properties , and their applications are restricted. A porous antireflection film was prepared with sol-gel, where the polyethylene glycol monomethyl ether (mPEG) was used as the porogen . The effects of the mPEG additive amount were investigated on the microstructure and properties of the film. The results showed that the transmittance of the film (the coated glass) first increases and then decreases with the increase of the amount of mPEG. When the amount of mPEG is 0.6 g, the average transmittance of the film in the wavelength range of 380–1100 nm is the highest, higher than that of glass substrate by 4.2 percentage points. The adhesion of the film reaches grade 0 and the hardness is greater than 9H. The efficiency of monocrystalline silicon solar cells could be increased from 11.65% to 12.04%, by a relative increase of 3.35%
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
CHEMISTRY OF MATERIALS
·
2022
·
IF 10.508
Yinsong Si,Taoqing Huang,Huiqi Xie,Min Chen
Artificial brochosome-shaped microspheres closely mimicking natural brochosomes are highly desired however challenging to synthesize. Herein silica brochosome-shaped microspheres (SiO2 BMs) are successfully synthesized by simply adjusting the NH4OH/p-xylene ratio. The obtained BMs, with a diameter of 530 nm and highly accessible open pores of ∼130 nm, demonstrate high similarity to natural brochosomes in size, shape, and pores geometry. A mechanism of droplets assembly originating from the surface charge transformation of the emulsion droplets is proposed by carefully investigating the in situ dynamic evolution of BMs intermediates. The priority growth of primary particles at the interface of the adjusting droplets forms the pores wall of BMs with regular distribution. Benefiting from the unique structure, the SiO2 BMs show excellent antiadhesion (superhydrophobic) and antireflection (at least 70% reduction for vertical reflection), indicating the high functional similarity to natural brochosomes. The synthesized BMs demonstrate sufficient load capacity, suggesting great potential in energy conversion and biomedical applications.
研究领域:
材料科学
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仿生学
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纳米技术
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Yanhui Zheng,Shaofan He,Kai Wang,Yuyao Xie,Yukui Gou,Hong Liu,Jianying Huang,Zhongyi Jiang,Yuekun Lai
Anti-reflective coatings play a vital in improving the power conversion efficiency (PCE) of solar cells, but they still suffers from poor self-cleaning performance and low transmittance. Herein, this paper presents broadband anti-reflective coatings prepared from ZnO, polyethylene glycol (PEG) and modified silica gel consists of the low surface energy substances methyltrimethoxysilane (MTMS) and tetraethylorthosilicate (TEOS). Specifically, the prepared coatings possess a porous cross-linked network to ensure low refractive index and good adhesion to the substrate. Based on experimental results, the broadband transmittance of these coatings is 4.8 % higher than bare glass and the peak transmittance is up to 98.4 % at 473 nm. Correspondingly, the PCE of the coating increased by 1.23 %. Simulated outdoor testing further confirms its excellent dust removal and organic matter degradation capabilities. These rational designed multifunctional coatings possess great potential for application in broadband transmittance-enhancing and in a variety of complex environments (dust, organic contamination, bird droppings).
研究领域:
材料科学
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光学工程
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能源技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
You Chen,Zijing Quan,Pinkun Wang,Xiangxiang Zhang,Hanliang Ding,Bowei Li,Bo Li,Shichao Niu,Junqiu Zhang,Zhiwu Han,Luquan Ren
Photovoltaic devices are essentially solar energy collectors that convert incident photons into charge carriers. However, light reflection losses and external factors (e.g., fog) can lead to an inefficient utilization of incident photons. Therefore, the development of antifogging surface materials that can efficiently reduce reflection is a critical issue in the upgradation of photovoltaic devices. Herein, inspired by the wing scale structures of butterfly Trogonoptera brookiana, an antireflective and antifogging surface (BRFS) was prepared by a method combining biotemplate and sol–gel. Remarkably, the BRFS possesses a relatively large surface roughness and exhibits superhydrophilic property (static water contact angle of 0°), which can quickly split fog droplet film within 6.6 s to realize the antifogging effect. In addition, the final transmittance of BRFS is as high as 90.25%. Furthermore, as an application demonstration, BRFS was applied to the surface of the reverse organic solar cells. Without compromising the inherent performance of the panels, the BRFS enhances the electrical performance of the inverted solar panels by 18%. This work provides a simple and effective strategy for designing surfaces with superior antifogging and antireflective properties and offers significant potential value for the practical application of photoelectric devices.
研究领域:
材料科学
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能源科学
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生物仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2017
·Vol. 5
·期 12
·3088-3096
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IF 5.256
Xinmin Cui,Ruimin Ding,Mengchao Wang,Conghui Wang,Jing Zhang,Jing Wang,Wensheng Dong,Yao Xu
An ultralow-index top layer is a prerequisite to preparing high-performance broadband AR coatings. When coupled with hydrophobicity and the abrasion-resistance required in practical applications, the challenge becomes even greater. In this work, a MgF2 AR coating was studied because of the low refractive index of MgF2 and its easily realized strong adhesion through low-temperature heat treatment. In order to obtain an ultralow refractive index and endow the coating with hydrophobicity, we designed several experimental routes and finally adopted MTES/TEOS co-precursors to direct MgF2 particles to form a honeycomb-like network structure without a template. A final refractive index of 1.15 and good hydrophobicity, with a water contact angle of 122°, were obtained using the MgF2–SiO2(CH3) coating. These superior properties were attributed to the incorporation of methyl groups, which not only endowed the coating with hydrophobicity, but also changed the original linear assembly of MgF2 particles to a circular assembly. Using this hydrophobic ultralow-index coating as a top layer, a high-performance double-layer AR coating was fabricated with a high average transmittance of 99.43% in the wavelength range of 400–1000 nm, good abrasion-resistance, and damp heat resistance after a low-temperature heat treatment of 250 °C. This MgF2 double-layer AR coating may be used in display devices or lenses.
研究领域:
材料科学
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光学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2019
·
IF 5.155
Junjie Yuan,Siyu Yan,Xiong Zhang
In this work, superhydrophilic antifogging antireflective coatings were prepared by the dip-coating of polyacrylate/polypropylsilsesquioxane core-shell nanocomposite particles’ sols followed by calcination at 500 °C for 4 h. The results showed that the transmittance of all the coatings in the band of 350–1000 nm was significantly higher than that of pure glass substrate, showing excellent broadband and antireflection performance. In particular, the maximum transmittance of the coatings with 8.0 g of propyltrimethoxysilane (PTMS-8) was 99.1% at the wavelength of 546 nm, and the average transmittance of the coatings reached 98.0% in the wavelength range of 400–700 nm and was enhanced by 9.3% compared to that of the bare glass substrate. Furthermore, the contact angle of the coatings decreased with the increase in the surface bumps structures of the coatings, and the minimum contact angle of the surface of the coatings with 10.0 g of propyltrimethoxysilane (PTMS-10) reached nearly zero within 0.5 s when the bumps evolved into a worm-like nanostructure, showing excellent superhydrophilic and antifogging properties. It was concluded that both roughness and special worm-like nanostructures give rise to the superhydrophilicity of the coatings.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
高影响因子
Energies
·
2022
·Vol. 15
·期 11
·3972
·
IF 3.252
Jingran Zhang,Baozhu Li,Heran Song,Chen Zhao,Songfeng Liang,Zhurong Dong,Jie Yu
The anti-reflection film can effectively reduce the surface reflectivity of solar photovoltaics, increase the transmittance of light, and improve the photoelectric conversion efficiency. The high refractive index coating is an important part of the anti-reflection film. However, the traditional metal oxide coating has poor stability and complicated processes. To address this issue, we prepared two organic high refractive index (HRI) photopolymers by modifying epoxy acrylic acid with 4,4′-thiodibenzenethiol, which can be surface patterned by nanoimprinting to prepare antireflection coatings. As a result, two modified photopolymers with high refractive index (n> 1.63), high optical transmittance (T > 95%), and thermal stability (Tg> 100 °C) are obtained after curing. In particular, the diphenyl sulfide photopolymer modified by ethyl isocyanate acrylate has a refractive index up to 1.667 cured by UV light. Our work confirms that the organic HRI photopolymer can be obtained by introducing high molar refractive index groups, with potential to be applied as a PV cell power conversion efficiency material.Keywords:refractive index;photopolymer;antireflection coatings;nanoimprinting;solar cells
研究领域:
材料科学
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光电技术
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可再生能源
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
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2020
·
IF 5.289
Shefiu Kareem,Yi Xie,Tan Li,Yanxi Ding,Emmanuel Acheampong Tsiwah,Abdelaal S.A. Ahmed,Junwu Chen,Fen Qiao,Zhi Chen,Xiujian Zhao
In this work, a facile, cost-effective and environmentally friendly approach is developed to synthesize transparent silica sol for fabricating antireflective (AR) and superhydrophobic (SH) films on soda–lime glass. The transparent silica sol is prepared at room temperature by modification of hexamethyl disilazane (HMDS) on colloidal silica nanoparticles (NPs) which are synthesized via base-catalyzed hydrolysis of tetraethoxysilane (TEOS) in the presence of ammonia-free alkaline solution (i.e., NaOH). The AR and SH silica films are then achieved by dip-coating. The average transmittance, water static contact angle (CA) and sliding angle (SA) of the resulting film can reach 93.1%, 169.7° and 3.0°, respectively, exhibiting both AR and SH properties. In particular, the excellent SH and AR properties of the resulting film facilitate not only the excellent self-cleaning performance but also the increasing light transmittance and thus an enhanced power conversion efficiency (PCE) in photovoltaic module.
研究领域:
材料科学
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光学工程
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2021
·
IF 3.08
Daxue Du,Yulian Zeng,Chenbo Wang,Mingjie Li,Fengyan Wang,Zhaopeng Xu,Haiyan Wang
Monodisperse silica nanospheres with different diameters between 100 and 700 nm were fabricated using a slightly modified Stöber process. Silica nanosphere monolayers in a hexagonal array based on hydrophobically modification were well deposited on top of a bare crystalline silicon solar cell by a Langmuir-Blodgett method. The antireflection effect of various diameter silica nanospheres coatings was simulated using Comsol Multiphysics simulations. Silica nanosphere hexagonal array coatings with four kinds of diameters were fabricated based on results of simulations. The efficiency of solar cells covered by silica nanospheres has improved significantly with a maximum of 11.41% at 119 nm diameter while that of the planar solar cells was 10.17%, which is attributed to the improved photocurrents arising from the broadband antireflection and optical absorption . The antireflection effects produced by Rayleigh (<1/10 wavelength) and Mie scattering (subwavelength) of different diameters silica nanosphere structures were discussed in detail.
研究领域:
材料科学
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光学工程
·
可再生能源
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2025
·
IF 4.2
Jinjie Zheng,Honglie Shen,Yufang Li,Huanlun Tong,Jingzhe Zhang,Zhihong Xie
In this study, a novel fabrication method for a bilayer film consisting of the Bi 2 Mo 3 O 12 :Eu 3+ and CaF 2 was developed. Bi 2 Mo 3 O 12 :Eu 3+ film was prepared using the chemical solution method, eliminating the need for separate phosphor preparation. The excitation spectra of Bi 2 Mo 3 O 12 :Eu 3+ displayed a broad band within the range of 300 and 420 nm. Under ultraviolet (UV) excitation, the material emitted strong red luminescence, with a dominant peak around 615 nm, which coincides with the absorption range of silicon solar cells. Additionally, a CaF 2 anti-reflection layer was introduced to enhance optical transmittance. The average transmittance of the Bi 2 Mo 3 O 12 :Eu 3+ @CaF 2 bilayer film reached 92.3%, representing a 0.7% increase compared to the bare glass substrate (91.6%). As a proof-of-concept, applying Bi 2 Mo 3 O 12 :Eu 3+ @CaF 2 to this bilayer film on photovoltaic modules resulted in an absolute enhancement of 0.19% in power conversion efficiency.
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY
·
2018
·
IF 4.374
Qi Luo,Xueshuang Deng,Chenxi Zhang,Meidong Yu,Xin Zhou,Zengbo Wang,Xiaohong Chen,Sumei Huang
Organic-inorganic halide perovskite solar cells have enormous potential to impact the existing photovoltaic industry. As realizing higher power conversion efficiency (PCE) of the solar cell is still the most crucial task, a great number of schemes were proposed to minimize the carrier loss by optimizing the electrical properties of the perovskite solar cells (PSCs). Here, we focus on another significant aspect that is to minimize the light loss by using an antireflection coating (ARC) component to gain a high PCE for PSC devices. In our scheme, silica nanosphere based ARCs are employed to CH 3 NH 3 PbI 3 PSCs for enhancing the device efficiency. SiO 2 nanosphere based ARCs were grown by spin-coating of an aged silica sol. The microstructure and the thickness of the SiO 2 nanosphere based ARC were controlled by changing the spin-coating speed from 400 to 4000 rpm. The effect of SiO 2 nanosphere based ARCs on the photovoltaic performance of perovskite solar cells is systematically investigated. The optimized SiO 2 nanosphere ARC coating on cleaned glass substrate exhibited a maximum transmittance of 96.1% at λ = 550 nm wavelength, and averagely increased the transmittance by about 3.8% in a broadband of 400–800 nm. The optimized antireflection coating strongly suppressed broadband and wide-angle reflectance in typical PSC solar cells, significantly enhancing the omnidirectional photovoltaic (PV) performance of PSCs. As a result, the power conversion efficiency was improved from 14.81% for reference device without SiO 2 nanospheres to 15.82% for the PSC device with the optimized ARC. Also, the PV performance of the PSC device with the optimized SiO 2 nanosphere ARC revealed less angular dependence for incident light.
研究领域:
材料科学
·
可再生能源
·
光伏技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2025
·
IF 3.2
Dong Beiping,Li Mingxuan,Li Zhaorui,Shang Zhihang,Zhou Xiang,Nie Lifang,Liu Juncheng
The anti-reflective film is one of the important and economical ways to improve the photoelectric conversion efficiency of solar cells. To enhance the weatherability of sol-gel derived SiO 2 antireflection films, a hybrid silicon source system consisting of isobutyl triethoxysilane (IBTS) and tetraethyl orthosilicate (TEOS) was employed for fabricating porous anti-reflection coatings via dip-coating, using polyethylene glycol monomethyl ether (mPEG) as the pore-forming agent. This study systematically investigated the influence of IBTS concentration on the film’s structural and optical properties. The results revealed a non-monotonic dependence of both film porosity and optical transmittance on IBTS content, with optimal performance achieved at intermediate concentrations. When the amount of IBTS was 6 ml, the film’s average transmittance within 380–1100 nm wavelength range reached the maximum 93.61%, 4.4 percentage points higher than that of the glass substrate. Moreover, the film’s adhesion strength reached grade 0, and its hardness was greater than 9 H. When the coated glass was used as the cover instead of the substrate glass, the efficiency of monocrystalline silicon solar cells improved from 11.64% to 12.26%, a relative increase of 4.93%. The film’s hardness and adhesion strength changed little after 100 h of UV lamp irradiation, while the average transmittance in the range of 380–1100 nm decreased with 0.45 percentage points. After immersion in hydrochloric acid solution for 80 h, the film hardness decreased to 8H, and the adhesion strength decreased to grade 1, while the transmittance increased with the increase of immersion time. When the immersion time reached 100 h, the film’s transmittance increased 0.81%. Graphical
研究领域:
材料科学
·
光学
·
太阳能
·
薄膜技术
·
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）