Article
Materials Science, Ceramics
Woochan Jin, Kyounghee Park, Jun Young Cho, Sung-Hwan Bae, Muhammad Siyar, Chan Park
Summary: A smart window based on VO2 is a promising thermochromic glass that can regulate heat flow through windows by solar modulation near room temperature. It requires TC glass with high visible-light transmittance and large difference in infrared transmittance between high- and low-temperature VO2 phases to save energy.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Aoyun Zhuang, Ke Wu, Yao Lu, Jianping Yu
Summary: This study prepared superhydrophobic ZnO/PTFE films on glass substrates by RF magnetron sputtering, exhibiting high water droplet contact angle of 165° and sliding angle of less than 1°. The PTFE coating provided excellent UV resistance compared to HDTMS hydrophobic agents, and the ZnO/PTFE films showed better photocatalytic property and mechanical robustness.
Article
Chemistry, Multidisciplinary
Seokwon Lee, Yeon-Ho Joung, Yong-Kyu Yoon, Wonseok Choi
Summary: A four-inch zinc oxide nanostructure with improved electrochemical performance was successfully synthesized using RF magnetron sputtering and plasma enhanced chemical vapor deposition techniques.
Article
Chemistry, Physical
Baktiyar Soltabayev, Ahmad Ajjaq, Gani Yergaliuly, Yerkebulan Kadyrov, Amanzhol Turlybekuly, Selim Acar, Almagul Mentbayeva
Summary: This study aims to explore the advantages of titanium doping and magnetron sputtering over chemical-based methods on the surficial and electrical characteristics of ZnO films, specifically on their gas sensing performance. Pure ZnO nanofilm and Ti-doped ZnO nanofilms with different Ti contents were synthesized using RF magnetron sputtering. The nanofilms exhibited a pure hexagonal wurtzite structure, with relatively flat and homogenous surfaces and a clear distribution of nanoparticles in the Ti-doped samples. The enhanced properties of the nanofilms were reflected in the gas sensor's ultimate performance, with the 1 wt% Ti content sensor showing the best gas sensing performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Li-Ping Peng, A-Ling He, Liang Fang, Xiao-Fei Yang
Summary: High conductive and transparent indium-doped zinc oxide (IZO) thin films were successfully deposited on glass substrates using radio-frequency magnetron sputtering at low temperature. The influence of deposition pressure on the properties of the films was significant, and the film deposited at 2.0 Pa showed the best performance.
Article
Chemistry, Physical
Haoran Wang, Yaqing Xue, Xin Song, Shulai Lei, Hong Yu, Cheng-Feng Du, Zewei Ren, Ruisheng Guo, Feng Zhou
Summary: In this study, Zn//V3CrC3Tx supercapacitors were fabricated using multiple-metal MXenes, which improved the capacitance, discharging potential, and cycle stability. In-plane Zn//V3CrC3Tx MSCs on paper demonstrated outstanding electrochemical properties and mechanical flexibility.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Physics, Multidisciplinary
Guodong Wang, Tingyu Chen, Lanlan Guo, Wei Wang, Haohan Wang, Yuanyuan Wang, Hua Zeng, Xiaolian Liu, Junjun Wang, Yingli Yang
Summary: An effective strategy combining magnetron sputtering and Ar plasma treatment is proposed to achieve a high-performance gas sensor based on Au-ZnO films. The sensor demonstrates high response, rapid response/recovery speed, and low detection limit. This work provides new ideas for future development in integrating gas sensors with functional circuits to form smart chips.
Article
Materials Science, Multidisciplinary
Jing Shao, Honglie Shen, Kai Gao, Xiaomin Huo, Jaffer Saddique, Xuewen Wang, Weili Meng
Summary: The study successfully prepared a bilayer film of ZnO overlayed by ATO with excellent blocking properties against UV and NIR, high transparency, and potential applications in organic solar cells.
Article
Materials Science, Multidisciplinary
B. L. Zhu, C. C. Wang, T. Xie, J. Wu, X. W. Shi
Summary: ZnO films were prepared with Zn/ZnO composite target using RF magnetron sputtering under different atmospheres and substrate temperatures. The effects of gas flow rate and substrate temperature on the properties of the films were investigated, showing that different ZnO films can be obtained under different conditions.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Simindokht Khademjafari, Sayed Mahmood Rabiee, Salman Nourouzi, Reza Shabannia Rami
Summary: RF magnetron sputtering was used to deposit ZnO nanoparticles on hydroxyapatite tablets in this study, resulting in improved bioactivity and ion release. Various analyses including FE-SEM, EDS, MAP, AFM, XRD, antibacterial assay, AAS, and flame photometer were conducted to confirm the successful coating and enhanced performance of the ZnO-coated tablets. The results showed that the ZnO coating led to decreased surface roughness, higher bioactivity against E. coli, and increased release of Zn2+ and Ca2+ ions.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Chunhu Zhao, Junfeng Liu, Yixin Guo, Yanlin Pan, Xiaobo Hu, Guoen Weng, Jiahua Tao, Jinchun Jiang, Shaoqiang Chen, Pingxiong Yang, Junhao Chu
Summary: The study optimized aluminum doped ZnO thin films using RF magnetron sputtering, achieving high-quality optical and electrical properties. The optimized films demonstrated excellent optical and electrical characteristics at low resistivity, making them suitable as front contact layers in solar cell applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Bidyut Barman, Sanjay Kumar Swami, Viresh Dutta
Summary: Sputter deposition of multilayer ZAZ and AAA TCO coatings was achieved using a magnetron sputtering system, showing improved electrical properties compared to commercial ITO film. High-temperature annealing demonstrated stable optical and electrical properties of the fabricated TCO layers up to 200℃.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Engineering, Electrical & Electronic
R. Bhat. Bhoomika, K. Gurukrishna, N. P. Madhukar, U. Deepika Shanubhogue, Ashok Rao, Ruei-Yu Huang, Yung-Kang Kuo, K. K. Nagaraja
Summary: Here we report a study on compositing highly conductive GdH2 with BiCuSeO to modulate the electronic transport and conductivity at high temperatures. The incorporation of GdH2 as a minor matrix in BiCuSeO significantly improves the electrical conductivity of the system, indicating the presence of thermal activation of charge carriers. The addition of the minor matrix directly converts the p-type conductivity of BiCuSeO to n-type conductivity at near room temperature. Ambiguities in transport behavior at near room temperature are identified by the electronic quality factor (B-E). The power factor is enhanced by GdH2, with a highest attained value of 221 mu W m K-2 at 700 K for the sample with x = 11 wt%, which is nearly twice the value of pristine BiCuSeO. The highest ZT of 0.011 is obtained for the pristine BiCuSeO sample at 380 K.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Environmental
Hassan Anwer, Mumtaz Ali, Sangbin Lee, Sung Hoon Jeong, Jae-Woo Park
Summary: An alveoli-inspired catalyst structure was proposed to regulate volatile organic contaminant (VOC) mass transfer from air to catalyst surface using air pockets, achieving high efficiency in adsorption and degradation. The presence of air pockets in the catalyst assembly helped achieve a high degree of toluene adsorption and 95% toluene conversion in 90 min, with a quantum yield of 4.14 x 10(-05) molecules/photon. Comparative analysis with previous photocatalytic systems evaluated the practicality of this alveoli-inspired catalyst.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhong-Zhen Luo, Songting Cai, Shiqiang Hao, Trevor P. Bailey, Yubo Luo, Wenjun Luo, Yan Yu, Ctirad Uher, Christopher Wolverton, Vinayak P. Dravid, Zhigang Zou, Qingyu Yan, Mercouri G. Kanatzidis
Summary: Zn plays a crucial role in enhancing the thermoelectric performance of Ga-doped PbTe by improving electronic transport properties and reducing lattice thermal conductivity, resulting in a significant increase in the figure of merit.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)