CATALYSIS LETTERS
·
2017
·Vol. 147
·期 10
·2592-2599
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IF 2.799
Guo Huiyun,Hou Wenlong,Liang Bo,Zhang Haiquan
Abstract A new method of using Sb 2 S 3 solution as precursor and drop-casting process for fabricating Sb 2 S 3 film/ITO combination with heterostructure is proposed. Effect of different substrates on photocatalytic performance was firstly investigated and the results reveal that formation of heterostructure in Sb 2 S 3 film/ITO combination promote the degradation rate of RhB. Graphical Abstract
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
RSC Advances
·
2023
·Vol. 13
·期 19
·13177-13182
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IF 3.9
Feng Hui An,Yu Zheng Yuan,Jian Qiang Liu,Meng Dong He,Bo Zhang
Tungsten oxide is regarded as the most promising electrochromic material owing to its continuously tunable optical properties, low cost, and high coloration efficiency. Further improving its optical modulation, switching speed, and coloration efficiency is important to electrochromic smart windows and related devices. Here, we demonstrate an enhanced electrochromic film composed of a WO3 nanosheet and ITO nanoparticles developed by an all-solution technology. The WO3 nanosheet is fabricated by an acid-assisted hydrothermal process with high product efficiency. The introduction of an ITO into the WO3 nanosheets significantly improved the electrochemical activity and the conductivity of the composite film. Compared with a reported electrochromic film without ITO doping, our synthesized composite WO3 film exhibited optical modulation up to 88% and a high coloration efficiency of 154.16 cm2 C−1. Particularly, our electrochromic film was based on the dispersant solution and spin-coating technology, which may also be realized with nano-spray coating for large scale applications. The results offer an effective way to develop large-area electrochromic film and devices.
研究领域:
材料科学
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纳米技术
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产品关联
DOI
PubMed
高影响因子
Small
·
2023
·Vol. 20
·期 6
·2307242
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IF 13.3
Yixiong Ji,Wangxian Chen,Di Yan,James Bullock,Yang Xu,Zhenghua Su,Wentong Yang,Jamie Stuart Laird,Tian Zheng,Na Wu,Wusong Zha,Qun Luo,Chang-Qi Ma,Trevor A. Smith,Fangyang Liu,Paul Mulvaney
Photovoltaic thin film solar cells based on kesterite Cu 2 ZnSn(S, Se) 4 (CZTSSe) have reached 13.8% sunlight-to-electricity conversion efficiency. However, this efficiency is still far from the Shockley-Queisser radiative limit and is hindered by the significant deficit in open circuit voltage ( V OC ). The presence of high-density interface states between the absorber layer and buffer or window layer leads to the recombination of photogenerated carriers, thereby reducing effective carrier collection. To tackle this issue, a new window structure ZnO/AgNW/ZnO/AgNW (ZAZA) comprising layers of ZnO and silver nanowires (AgNWs) is proposed. This structure offers a simple and low-damage processing method, resulting in improved optoelectronic properties and junction quality. The ZAZA-based devices exhibit enhanced V OC due to the higher built-in voltage ( V bi ) and reduced interface recombination compared to the usual indium tin oxide (ITO) based structures. Additionally, improved carrier collection is demonstrated as a result of the shortened collection paths and the more uniform carrier lifetime distribution. These advances enable the fabrication of the first ITO-free CZTSSe solar cells with over 10% efficiency without an anti-reflective coating.
研究领域:
材料科学
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能源技术
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光伏器件
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DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Feng Chen,Yazhi Zhu,Wei Li,Jintao Yang,Ping Fan,Zhengdong Fei,Mingqiang Zhong,Lingqian Chang,Tairong Kuang
Surfaces with stimuli-responsive properties have shown prominent applications in bioengineering, controlled drug release and biosensors in recent years. In this work, we report a surface-initiated reversible addition–fragmentation chain transfer polymerization method to graft azobenzene-containing diblock copolymer (azo-BCP) brushes onto an Indium Tin Oxide (ITO) glass surface. In this method, a sequential azo block serves as the outer layer that controls the closure or opening of the brushes, and the second block (PDMAEMA) acts as the inner layer that switches between swollen and collapsed chain states in response to different pH values and temperatures. Upon exposure to UV light, the ITO surface became more hydrophilic (>10° change of contact angles), and its friction coefficient (0.5–0.9) increased; this suggests a loose aggregation of the azo block. Additionally, the ion conductivity of the ITO surface can be influenced by the aggregation state of the azo-BCP brushes, thus leading to the transportation of light-triggered ions under various pH values and temperatures. This work provides a deep understanding of the surface properties of a sensitive hybrid material upon various stimuli for electrode purpose, thereby paving the way for the development of bioengineering and environmental sensory applications.
研究领域:
生物工程
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材料科学
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传感器技术
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DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2019
·
IF 6.019
Qi Zhao,Yasi Fang,Ke Qiao,Wei Wei,Yongji Yao,Yanfeng Gao
Electrochromic smart devices with controllable optical property are the most promising alternative to traditional windows and curtains. State of the art preparation and commercialization of large-scale electrochromic films are mainly based on vapor phase deposition , but massive application is limited by high price (due to complex preparation process). Here, an all-solution technology is developed for large-area low-cost preparation of electrochromic films. A WO 3 /ITO dispersion was successfully developed; high electrical conductivity ITO nanoparticle networks along with ITO coating on glass can serve as extended 3-dimensional electrode, which can form microelectrical field and act as the pathways for electron diffusion to WO 3 nanorods . In fact, experiment results show that the surface resistance of WO 3 /ITO nanocomposite film decreased to 32% of the pure WO 3 . In other words, the optimum WO 3 /ITO nanocomposite films in this study with “distributed conductive structure” and submicrometer-sized voids morphology have improved the electrochromic properties remarkably. Our optimized WO 3 /ITO films exhibit higher optical modulation than pristine WO 3 (ΔT = 81.7% vs 62.5% at 630 nm) and a faster switching speed (t b = 6 s vs 22 s).
研究领域:
材料科学
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纳米技术
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产品关联
DOI
高影响因子
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
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2021
·Vol. 35
·期 6
·1098-1103
·
IF 0.957
Zhai Xiaoyu,Peng Xiang,Ma Yunqian,Liu Ting,Liu Jiaxiang
The effect of particle size on the density and resistivity of ITO green bodies and targets was systematically investigated. The experimental results show that the relative density of ITO green bodies decreases with the increase of ITO particle size. When the particle size is 10.7 nm, the relative density of ITO green bodies rises to the maximum value of 56.6%. The resistivity declines exponentially with the increase of particle size, which satisfies the exponential equation of R = exp(−41.823 × d). When the particle size is 41.6 nm, the resistivity reaches the minimum value of 0.8 Ω·cm. The relative density of ITO target decreases with the increase of particle size. Fine particles can increase the driving force of densification in initial stage. Electron mobility, caused by grain boundary scattering, will increase due to the increase of particle size or the decrease of grain boundary potential. When the particle size is 10.7 nm, the target with compact grain stacking and low porosity shows a maximum relative density of 99.25%, and the resistivity reaches the minimum value of 0.34×10 −3 Ω·cm.
研究领域:
材料科学
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物理学
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DOI
高影响因子
ACS Applied Optical Materials
·
2023
·
IF 0
Chenyang Xu,Li Zhong,Cui Liu,Nian Li,Shudong Zhang,Zhenyang Wang,Min Xi
The heat release of ambient temperature objects (0–100 °C) is often in the form of mid- to far-infrared radiation outward (∼4000 to 200 cm–1). In order to maintain warm objects, it is theoretically feasible to construct a kind of flexible material with infrared reflection ability targeting the band of mid- to far-infrared. In this paper, we proposed a type of nanofiber mat with excellent infrared reflection and thermal insulation performance. The ITO nanoclusters were introduced into the polyacrylonitrile (PAN) nanofibers via the electrospinning technique. The performed experimental test proved that the infrared reflection ability of the nanofiber mat can be enhanced because of the increased diameter of nanofiber upon the introduction of the ITO nanocluster as well as the localized surface plasmon resonance (LSPR) effects of ITO nanoclusters in the mid- to far-infrared range. It worth mentioning that the prepared nanofiber mat showed good air-permeability and mechanical properties due to the PAN matrix. Moreover, the performed experiments and numerical simulation analysis also suggested improved infrared reflection performance with respect to the size of aggregated ITO nanoclusters and their LSPR coupling effects in the nanofiber mat. The performed thermal insulation tests also indicated that the electrospun ITO/PAN nanofiber mat is promising for the thermal insulation of ambient temperature objects via IR radiation regulation.
研究领域:
材料科学
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纳米技术
·
光学
✓ 已验证
DOI
ACS Omega
·
2020
·
IF 2.87
Haipeng Di,Wei Jiang,Hao Sun,Chen Zhao,Feiyi Liao,Yiying Zhao
Fabricating perovskite single-crystal thin films (SCTFs) in controllable manner is the major challenge for the promising potential applications in optoelectronic devices. Although modifying the substrate surface is frequently used to realize the controlled growth of perovskite SCTFs, it is still unclear how the substrate condition affects the crystallization process. In this work, we systemically investigated the effects of the surface hydrophobicity of indium tin oxide substrates on the crystallization process of MAPbBr3 SCTFs prepared by the space-confined method. Comprehensive characterizations show that the surface morphology and crystallinity of SCTFs are improved, and the defect density is reduced when increasing the substrate hydrophobicity. The best MAPbBr3 thin film obtained has a full width at half-height of the rocking curve of the (001) crystal plane of 0.044°. The mechanism of the substrate hydrophobicity on the crystal growth is also discussed. These results will provide guidance to the controllable growth of high-quality SCTFs for perovskite SCTF devices.
研究领域:
材料科学
·
光电材料
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DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2017
·
IF 2.986
Fei Liang,Jiaxiang Liu
High density and low electrical resistivity ITO targets were prepared by normal pressure sintering in oxygen with Bi 2 O 3 –Nb 2 O 5 addition. The relative density, microstructure and electrical properties of the ITO targets can be adjusted by changing the sintering temperature (1350 °C~1550 °C) and the content of Bi 2 O 3 –Nb 2 O 5 . The results show that the sintering temperature of ITO targets with Bi 2 O 3 –Nb 2 O 5 decreased from 1550 °C to 1450 °C, and the maximum relative density (99.6%) and the lowest electrical resistivity (1.78×10 −4 Ω cm) were reached when the sintering temperature was 1450 °C with 5 wt% Bi 2 O 3 –Nb 2 O 5 . The carrier concentration increased as the increase of the contents of Bi 2 O 3 –Nb 2 O 5 and sintering temperature. The mobility first increased, and then decreased above 1450 °C as the sintering temperature increased.
研究领域:
材料科学
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物理学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Shaolong Li,Zepeng Lv,Jilin He,Jianxun Song
The conversion of ITO scraps into oxide powders that can be employed to prepare targets is integral to the closed-loop utilization of scare metal indium. Herein, we present a novel route for electrochemical coupled ultrasonic recovery of ITO scraps, which averts the consumption of strong acids, alkalis and carbon containing reducing agents in traditional hydrometallurgical or pyrometallurgical recovery processes. In an ammonium salt solution, the ITO anode dissolves under the action of electrons: oxygen ions are oxidized, while metal ions are leached out, and then combines with hydroxide ions in the solution to form flocculent precipitates, which is attributed to the extremely low solubility product of indium hydroxide and tin hydroxide. The ultrasonic field can promote the mass transfer between the electrode and electrolyte interface, thereby accelerating the reaction process regulating the morphology and size of the product. After calcination, the precipitates become uniformly mixed nano-scale oxide powders with dimensions that meet the requirements for target preparation. The recycling strategy, with its green, straightforward operation, and feasible for scale-up, suggests potential industrial uses for recovering ITO scraps.
研究领域:
材料科学
·
环境工程
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产品关联
DOI
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2021
·Vol. 128
·期 1
·1-14
·
IF 2.584
Chen Peng,Wu Keliang,Peng Xiang,Ma Yue,Yang Xuqi,Duan Xinping,Ma Yan,Liu Zhiyong
Hydrogen and oxygen production based on photocatalytic monolithic water splitting is considered to be one of the effective ways to produce sustainable and clean energy. The key challenge in this process is to develop new photocatalysts that can simultaneously produce H 2 and O 2 at a stoichiometric ratio of 2:1 without the use of any sacrificial agents. In order to solve this problem, highly efficient and ingenious photosystems in nature have been studied intensively. Herein, we prepared printable Z-type composite photocatalysts CdS@TiO 2 /Pt/ITO/WO 3 /Co 3 O 4 mimicking biological vegetative leaves in nature and constructed an “artificial leaf” device that completely decomposes water. We use an electron solid penetrating transporter ITO, which can rapidly transfer photogenerated electrons and photogenerated holes and reduce the compound rate of photogenerated carriers. Thus, the efficiency of photocatalytic total water dissolution is enhanced. This photocatalyst was able to produce both H 2 and O 2 in water with an H 2 production rate of 75.93 μmol g −1 h −1 and an O 2 production rate of 36.49 μmol g −1 h −1 . We designed the oxygen-producing photocatalyst WO 3 /Co 3 O 4 , which produced oxygen at a rate of 159.21 μmol g −1 h −1 6 times higher than that of WO 3 alone. Furthermore, the morphology, composition, and microstructures of the photocatalyst were characterized by field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and nitrogen adsorption–desorption.
研究领域:
材料科学
·
化学工程
·
环境科学
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纳米技术
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能源科学
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2018
·Vol. 42
·期 3
·2243-2247
·
IF 3.201
Yuming Dong,Shibin Xia,Pingping Jiang,Guangli Wang,Shuang Zhao
Photocathodes sensitized by photoactive semiconductors are of great significance for photoelectrochemical hydrogen evolution and tandem solar cells, yet their development is hindered by the scarcity of appropriate materials to serve as a hole-selective layer. In this work, we report a novel photocathode employing PbS as the photoactive material and tin-doped indium oxide (ITO) as the hole-selective layer. The optimized electrode showed a photocurrent of −75 μA cm−2 under light illumination at −0.222 V vs. Ag/AgCl with operational activity for 9 hours. The key factors for hole transfer were investigated. These results showed ITO to be a promising hole-transfer material for photoelectrochemical photocathodes.
研究领域:
材料科学
·
光化学
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）