Coatings
·
2020
·Vol. 10
·期 4
·399
·
IF 2.436
Qiannan Ye,Xu Zhang,Dong Guo,Wei Xu,Honglong Ning,Tian Qiu,Jinxiong Li,Danqing Hou,Rihui Yao,Junbiao Peng
High-quality SnO2:Si films and SnO2:10 at.% Ga films were prepared by the solution method. The roughness of films is below 1.08 nm, and possess exceptional transparency (>75%) and decent semiconductor properties. Based on this, the SnO2:Si/SnO2: Ga homojunctions with different Si doping concentrations were prepared. It is found that the conductivity of the SnO2:Si thin film gradually increases, and the rectification characteristics of the homojunction are optimized with increasing Si doping content. The SnO2:15 at.% Si/SnO2:10 at.% Ga homogeneous junction has the best performance, the turn-on voltage is as low as 5.6 V, and it also exhibits good unidirectional conductivity. The photoresponse of the SnO2:15 at.% Si/SnO2:10 at.% Ga homojunction under the lights of red, yellow, and purple was explored respectively. The result shows that the device responds strongly to purple light. Compared with the test results in the dark environment, the device current increases by two orders, which is expected to be applied in the field of near-ultraviolet detection.Keywords:solution method;SnO2;homojunction;highly transparent;photoresponse
研究领域:
材料科学
·
光电学
·
半导体物理
✓ 已验证
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Bao Guo,Hongjun Kang,Xinzhi Wang,Yitong Duan,Xiaotong Li,Baiqi Gao,Zhiqiang Wang,Yang Li,Songtao Lu,Xiaohong Wu
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-SiO 2 coating with dual self-cleaning and dust removal functions, composed of polydimethylsiloxane (PDMS) and SiO 2 . The coating demonstrates a high transmittance of 97 %. After self-cleaning and dust removal tests, conversion efficiency of F-SiO 2 coated PV decreased by only 0.03 % and 0.01 %, respectively, demonstrating excellent self-cleaning and dust removal performance. Additionally, the F-SiO 2 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.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Baolu Shi,Zhiliang Zhou,Yu Chen,Xinqiao Wang,Baosheng Xu
SiO 2 aerogels have an inherent optical transparency, but there is a hydrophilic defect and high transparency and hydrophobicity seem impossible to achieve at the same time. In order to realize the practical application value of highly transparent aerogel, our study used hexamethyldisilazane (HMDS) as the hydrophobic agent to improve the hydrophobicity of the prepared highly transparent SiO 2 aerogels. We investigated the effects of HMDS concentration and modification duration on SiO 2 aerogels through the chemical liquid method. Results showed that the concentration and modification time of HMDS have no significant effect on the microstructure and properties of highly transparent SiO 2 aerogels, which maintained uniform microstructure, low thermal conductivity , good thermal stability and contact angles were all above 136°. Hydrophobic and highly transparent SiO 2 aerogels hold great potential for use as observation windows in the aerospace applications, building thermal management, and transparent coating.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Polymer Materials
·
2024
·
IF 4.4
Chunlin Ren,Peixin Niu,Shihu Zhang,Xiaonan Han,Zhiqiang Guo,Yujin Zhang,Saisai Zhang,Xingjiang Liu,Liuhe Wei
Silane-modified polyurethanes (SPU-MDI, SPU-IPDI, and SPU-HDI) were synthesized by reacting various isocyanates (MDI, IPDI, and HDI) with poly(ether triol), followed by siloxane capping. The branched structures and properties of these SPUs were systematically characterized and evaluated. These SPU resins, upon moisture curing, yield elastomers exhibiting excellent mechanical properties and high transmittance (>92%). Incorporating polyether tertiary alcohol into the polymer chain markedly reduces the viscosity and average particle size of the SPUs due to its de-entangling effect. Specifically, the SPU-HDI resin displayed a low viscosity of 2548 mPa·s at 25 °C and an average particle size of 3.12 nm. Notably, elastomers derived from SPU-MDI and SPU-IPDI resins demonstrated tensile strengths greater than 10 MPa, surpassing that of SPU-HDI-based elastomer (∼5.0 MPa). This significant enhancement broadens the potential applications of these materials.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2019
·
IF 3.074
Lin Guan,Yongqi Yang,Fei Jia,Guanghui Gao
Photochromic hydrogels have attracted considerable attention owing to their potential application in optical devices. However, the weak mechanical properties severely limited their applications. Here, a novel photochromic hydrogel with high transparency, high stretchability and rapid photochromic responsiveness has been successfully designed and prepared by introducing a redox photochromic material (Mo) into the hybrid hydrogel. The photochromic hydrogel with rapid photochromic response achieved discoloration process within only 3 s and the fading process could be easily performed under the air environment. Moreover, the ability to rewrite and erase optical information have been implemented on the photochromic hydrogels. Therefore, this strategy of photochromic hydrogel would contribute to design a new generation of optical display devices.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
Gels
·
2022
·Vol. 8
·期 11
·744
·
IF 4.432
Baolu Shi,Long Xie,Bin Ma,Zhiliang Zhou,Baosheng Xu,Lijie Qu
SiO2aerogels have attracted extensive attention due to their unique structural characteristics, which exhibit many special properties, especially good optical transparency. As far as we know, the sol-gel stage during the synthesis of aerogel plays an important role in the construction of the gel skeleton. In this study, we adjusted the amount of silicon source and catalyst to explore the best scheme for preparing highly transparent SiO2aerogels, and further clarify the effects of both on the properties of SiO2aerogels. Results indicated that the pore size distribution was between 10 and 20 nm, the thermal conductivity was between 0.0135 and 0.021 W/(m·K), and the transmittance reached 97.78% at 800 nm of the aerogels, better than most studies. Therefore, it has the potential to be used in aerogel glass for thermal insulation.Keywords:SiO2aerogels;high transparency;thermal insulation;mesoporous materials
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2024
·
IF 5.8
Yongzhi Luo,Bin Wang,Shengquan Yu,Zhongben Pan,Bin Kang,Jianguo Deng,Xiaoqiang Li
Highly transparent (Nd 0.01 Y 0.99- x Sc x ) 2 O 3 ceramics with varying Sc 3+ content were successfully fabricated by vacuum sintering at 1750 °C followed by hot isostatic pressing at 1650 °C with 1 mol% ZrO 2 as sintering additive. The effect of Sc 3+ substitution on the crystal structure, microscopic morphology, optical transmittance and spectroscopic properties was investigated systematically. By increasing the Sc 3+ content, the lattice shrinked and the mean grain size increased. The optical transmittances of 5-mm-thick samples with x = 0, 0.03 and 0.09 were above 80 % at 650 nm and 82 % at 1100 nm. With the increasing of Sc 3+ , the main emission peaks of Nd 3+ near 1080 nm shift toward longer wavelength. Continuous wave (CW) laser operation for transparent (Nd 0.01 Y 0.99 ) 2 O 3 and (Nd 0.01 Y 0.90 Sc 0.09 ) 2 O 3 ceramics were end-pumped for laser diode at 808 nm. The maximum output power of 1.79 W with an optical-to-optical conversion efficiency of 17.6 % was obtained in (Nd 0.01 Y 0.90 Sc 0.09 ) 2 O 3 ceramics for the first time.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
Gels
·
2025
·Vol. 11
·期 5
·369
·
IF 5.3
Limei Zhang,Hong Li,Zhiquan Li,Weimin Pan,Yi Men,Niankun Zhang,Jing Xu,Xuewei Liu
As conductive materials, ionogels have attracted significant attention for their potential applications in flexible wearable electronics. However, preparing an ionogel with mechanical properties akin to human skin while also achieving transparency, adhesion, and low hysteresis through simple processes remains challenging. Here, we introduce a multifunctional ionogel synthesized via a one-step photopolymerization method. By leveraging the good compatibility between the ionic liquid and the polymer network, as well as the hydrogen bonding and chemical crosslinking within the gel network, we achieved an ionogel with high transparency (>98%), stretchability (fracture strain of 19), low hysteresis (<5.83%), strong adhesion, robust mechanical stability, excellent electrical properties, a wide operating temperature range, and a tunable modulus (1–103 kPa) that matches human skin. When used as a conductor in soft actuators, the ionogel enabled a large area strain of 36% and a fast electromechanical conversion time of less than 1 s. The actuator demonstrated good actuation performance with voltage and frequency dependence, electrochemical stability, and outstanding durability over millions of cycles. This study provides a simple and effective method to produce multifunctional ionogels with tailored mechanical properties that match those of human skin, paving the way for their application in flexible wearable electronics.
研究领域:
材料科学
·
柔性电子
·
生物医学工程
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jinbo Liu,Qiannan Wang,Fuhao Shen,Congcong Zhang,Chang Cheng,Haitao Deng,Enfeng Yang,Xiao Chen,Kefan Fang,Yuan Zhou,Yuan Su,Jing Zhang,Dianyu Wang
Endoscopes, a minimally invasive medical tool, are susceptible to impaired visibility due to the adhesion of biological fluids. However, traditional self-cleaning coatings face limitations in terms of transparency and sustainability, making it difficult to apply them to lenses. Inspired by the phospholipid layer of the eye, a reversible lubricating layer (RL-layer) with low-adhesion and high-transparency properties is reported. Even coagulated blood can be easily removed due to the low surface tension and easy swing of the brushes. In addition, the silicon–oxygen bonds can be cleaved by fluoride ions, thereby achieving reversible modification and showing potential in sustainable usage. To prove the concept, biomimetic endoscopic lenses are employed in vivo experiments. The results indicate that it consistently maintains a clear vision in narrow spaces containing mucus and exhibits excellent biocompatibility. The reversible lubricating layer provides valuable reference significance for self-cleaning coatings in other fields.
研究领域:
医学工程
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材料科学
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生物医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Jianwen Peng,Peng Ye,Xinyu Bu,Yue Zhang,Yanji Zhu,Ruitao Wang,Di Bao,Huaiyuan Wang
Photovoltaic (PV) modules have become a powerful contributor to global CO 2 emissions mitigation, but have suffered a significant loss in power generation efficiency caused by the deposition of surface contamination. Conventional self-cleaning coatings typically require laborious fabrication processes, elaborate texturing, and fluorinated materials, which are difficult to integrate with transparency, environmental compatibility, and adaptability. Herein, we show a highly transparent, fluorine-free, and dynamically omniphobic liquid-like polyurethane coating (LLPuC) prepared by well cross-linking between polydimethylsiloxane (PDMS)-grafted hydroxyacrylate (P x HA y ) copolymer and polyisocyanate at elevated or room temperature. The LLPuC could be applied to various substrates by spraying or blading methods and has demonstrated good transparency (91.79 % at 550 nm) of the coated glass. The liquid-like flexible chains of PDMS were enriched on the LLPuC and moved spontaneously, resulting in a smooth surface with dynamic omniphobicity (WSA = 11.5 ± 0.6°, OSA ≤ 15°), anti-smudge, and self-cleaning capability, as evidenced by the LLPuC coated PV module achieving a 92.83 % efficiency recovery ratio after the self-cleaning process. Moreover, the obtained coating also exhibited good adhesion strength, flexibility, anti-abrasion, and stability. Thus, the approaches and findings in this work have opened up a new avenue for self-cleaning coatings of PV modules and various outdoor transparent devices.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
MRS Communications
·
2019
·Vol. 9
·期 1
·92-98
·
IF 1.935
Meiling Zhang,Qi Liu,Jingyuan Liu,Jing Yu,Jun Wang
The glass surfaces used for optical devices are necessary to have high transparency. Here we propose to take advantage of tube-like SiO2 textures to trap lubricant liquid inside aiming to prepare novel slippery liquid-infused porous surfaces (SLIPS). As a consequence, SLIPS with high transparency were synthesized on glass substrate successfully. The capillary action of unique tubular structure induces the ion migration of adjacent Krytox 100, thus endowing SLIPS with the self-healing property. Moreover, the remarkable slip behavior enables these surfaces to possess the self-cleaning and anti-biofouling performances. The current work might provide a promising candidate for long-term transparent optical devices.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
Chemical Science
·
2025
·
IF 7.4
Huifa Meng,Kaijin Chen,Chuying Li,Longfei Zhang,Yanwei He,Zining Zhao,Peixin Wu,Hai Zhu,Zhenguo Chi,Jiarui Xu,Siwei Liu,Yi Zhang
Traditional photosensitive polyimide (PSPI) materials require a high curing temperature and exhibit low transparency, limiting their applications in thermally sensitive optical devices. To overcome this challenge, soluble photosensitive polyimide resins were synthesized based on the structural design of bio-based magnolol monomer. It is noteworthy that the PI photoresist, developed by using the as-prepared polyimides and non-toxic solvents (2-acetoxy-1-methoxypropane, PGEMA) and other additives, demonstrated an impressive low-temperature curing performance (180 °C). Furthermore, the solvent residue presents in the cured film using PGEMA as solvent was markedly decrease when compared to that of the cured film using N-methyl pyrrolidone (NMP). In addition, the C-PI-3 films cured by photoinitiated thiol-ene radical reactions exhibited high transparency with an average visible light transmittance of 87.8 %, as well as excellent thermal stability, dielectric and breakdown properties, and photo-patternable capabilities. This partially bio-based and innocuous solvent-based PSPI with low-temperature curable and high transparency properties could be a pioneering example to resolve the challenges of energy efficiency and environmental sustainability, and are expected to be used in the field of color filters.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
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