Article
Engineering, Industrial
Matthew D. Wadge, Morgan Lowther, Timothy P. Cooper, William J. Reynolds, Alistair Speidel, Luke N. Carter, Daisy Rabbitt, Zakhar R. Kudrynskyi, Reda M. Felfel, Ifty Ahmed, Adam T. Clare, David M. Grant, Liam M. Grover, Sophie C. Cox
Summary: Coating powders with an optically absorptive layer improves the melting performance and uniform densification of highly reflective and high thermally conductive materials during laser powder bed fusion (LPBF). In-situ alloying of coated Ag powder with Ti also showed improved absorptivity and uniform densification, offering a promising route for improved alloy development via LPBF.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yanfang Zhao, Wei Ding, Yuanbin Xiao, Ping Yang
Summary: The effects of sputtering power on the structure, morphology, electrical and optical properties of AZO films were investigated. The results showed that the film with a sputtering power of 120 W had the smallest FHWH value and the largest grain size, and exhibited the best conductivity. The carrier concentration and hall mobility increased with the increase of sputtering power, which was directly related to the improvement of crystal quality. The average transmittance of all samples was above 80%, and the band gaps showed an initial increase followed by a decrease. This work implies the potential application of controllable growth AZO transparent conductive film in photovoltaic devices.
Article
Optics
M. Mohamedi, F. Challali, T. Touam, D. Mendil, S. Ouhenia, A. H. Souici, D. Djouadi, A. Chelouche
Summary: In this study, AZO thin films were fabricated on glass and quartz substrates using RF magnetron sputtering technique in confocal configuration. The effects of substrate and air annealing on the properties of the films were investigated. The results showed that the properties of the films, including crystallinity, surface roughness, optical transmittance, and electrical conductivity, were influenced by substrate type and annealing temperature.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Multidisciplinary
Zhenqing Wu, Jiaoling Zhao, Meiping Zhu, Sheng Guo, Tianbao Liu, Wenyun Du, Jun Shi, Tingting Zeng, Jianda Shao
Summary: In this study, Mo2C films were prepared by pulsed direct-current magnetron sputtering, and the effects of film thickness and annealing temperature on the phase structure and properties of the films were investigated.
MATERIALS RESEARCH EXPRESS
(2022)
Article
Materials Science, Multidisciplinary
Yong Jun Park, Kwang-Mo Kang, Ji Ho Kang, Deokyeon Lee, Sung Hun Na, Seung Ho Han, Yoon-Chae Nah, Dong Hun Kim
Summary: This study investigated the structure, morphology, and electrochromic properties of sputtered-WO3 thin films using ceramic and metallic targets. The films were grown using different power sources and exhibited different performance. The films produced by sputtering the ceramic target with pulsed DC power showed the highest transmittance difference and coloration efficiency, as well as better response speed and stability.
Article
Physics, Applied
Kazunori Takahashi, Hidemasa Miura
Summary: The direct measurement of thrust from a magnetron sputtering source operated in argon using a pendulum thrust balance immersed in vacuum shows that the thrust imparted varies significantly with different target materials, while the ion density remains constant. The copper target demonstrates the highest thrust-to-power ratio among the materials tested, indicating thrust generation through material ejection during the sputtering process.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Xin Zhang, Yi Zhang, Yukai Wang, Qizhen Wang, Zhihui Liu, Rui Geng, Hualin Wang, Weiwei Jiang, Wanyu Ding
Summary: Organic-inorganic hybrid metal halide perovskite solar cells (PSCs) were fabricated with planar heterojunction structures, using traditional methylammonium lead iodide as the photovoltaic convert layer. TiO2 electron transport layer (ETL) was prepared through sol-gel and direct current pulsed magnetron sputtering (DC-PMS) technologies. PSCs with DC-PMS TiO2 ETL showed higher power conversion efficiencies and improved short-circuit currents compared to those with Sol-gel TiO2 ETL, due to the chain-like structure and higher surface potential.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Physical
Heda Bai, Jin Li, Jialai Gao, Jinyang Ni, Yaxiong Bai, Jie Jian, Lin Zhao, Bowen Bai, Zeyun Cai, Jianchao He, Hongsheng Chen, Xuesong Leng, Xiangli Liu
Summary: This article reviews the microstructure and mechanical properties of CrN coatings fabricated through direct current magnetron sputtering (DCMS) and high-power impulse magnetron sputtering (HiPIMS) techniques. Compared to DCMS, HiPIMS demonstrates superior mechanical attributes, thus receiving significant research interest. However, HiPIMS also has potential shortcomings.
Article
Materials Science, Multidisciplinary
Xinrong Chen, Wei Mi, Meng Li, Jinze Tang, Jinshi Zhao, Liwei Zhou, Xingcheng Zhang, Chongbiao Luan
Summary: Optoelectronic artificial synapses based on Pt/beta-Ga2O3/Pt structure were fabricated and investigated for their optoelectronic plasticity, demonstrating capabilities in simulating synaptic memory states, learning behavior, and response to different light wavelengths. The compact structure with low power consumption and crosstalk allows for efficient processing of large data sets.
Article
Materials Science, Coatings & Films
R. Hippler, M. Cada, P. Ksirova, J. Olejnicek, P. Jiricek, J. Houdkova, H. Wulff, A. Kruth, C. A. Helm, Z. Hubicka
Summary: Cobalt oxide films were deposited using two different magnetron sputtering techniques under different oxygen atmospheres, demonstrating that films produced by HiPIMS process have better performance and lower resistivity. The deposition conditions of magnetron sputtering have a significant impact on the crystal structure and electrical properties of the deposited films.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
H. Ben Jbara, E. Aubry, M. Kanzari, A. Billard, M. Arab Pour Yazdi
Summary: This work investigated the influences of temperature and air residual pressure during post-annealing treatment on the properties of copper iron oxide thin films, showing that with decreasing air residual pressure, the films are reduced and spinel CuFe2O4 phase is formed. The optical and electrical properties of Cu-Fe-O thin films were found to depend on the structural evolution under different treatment conditions.
Article
Chemistry, Physical
Chao Ping Liu, Chun Yuen Ho, Kingsley O. Egbo, Zhan Hua Li, Cong Kang Xu, Kin Man Yu
Summary: Highly mismatched alloys offer unique opportunities for controlling electronic band structures and optoelectronic properties, with specific effects observed in ZnO1-xTex alloys synthesized over a range of compositions. The introduction of certain dopants leads to distinct changes in material conductivity and band structures, revealing potential applications for tailored device functionality.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
M. Abo El-Kassem, F. M. El-Hossary, M. Raaif, W. Aroua, A. Thabet, A. A. Abd El-Moula
Summary: The study investigated the optoelectronic characteristics and surface plasmon polaritons (SPPs) of nanostructured CdO/Ag/CdO multilayer films. It was found that increasing the Ag metallic interlayer thickness resulted in decreased transmittance, increased reflection, and improved electrical properties. The multilayer films could be utilized as SPPs nano-waveguide and showed potential for telecommunications applications at specific excitation wavelengths.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Multidisciplinary Sciences
Si Bui Quang Tran, Fong Yew Leong, Ramanarayan Hariharaputran, Duc Vinh Le
Summary: We simulated a pulsed DC planar magnetron discharge using a fluid model, and found that pulsing increased electron density and temperature, but decreased deposition rate compared to non-pulsed DC magnetron. Increasing pulse frequency increased electron temperature but reduced electron density and deposition rate, while increasing duty cycle decreased electron temperature and density but increased deposition rate. The time-averaged electron density scaled inversely with frequency, and the time-averaged discharge voltage magnitude scaled with duty cycle. These results are applicable to modulated pulse power magnetron sputtering and AC reactive sputtering processes.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Richard Drevet, Pavel Soucek, Pavel Mares, Martin Dubau, Zsolt Czigany, Katalin Balazsi, Petr Vasina
Summary: This research focuses on the synthesis of multilayer thin films of aluminum oxide and tantalum oxide for dielectric applications. The films are made of two, four, or eight oxide layers produced by physical vapor deposition (PVD). The morphology and crystallinity of the films are influenced by the interface between the oxide layers and can be changed by thermal annealing. The dielectric strength of the films is also studied and compared to single layers of Al2O3 and Ta2O5.
