Article
Chemistry, Physical
Zeping Li, Xiong Yu, Yunhao Zhu, Sisi Liu, Xiaoyan Wen, Haifei Lu, Cong Wang, Xiao Li, Ming-Yu Li, Yingping Yang
Summary: In this study, ZnO quantum dot (QD) / magnetron sputtered ZnO homojunction photodetectors with excellent performance were fabricated by systematically varying the thickness ratios between two ZnO layers. The balanced ratio resulted in extra adsorption-desorption sites from the ZnO QDs and accelerated carrier transportation from the highly crystallized magnetron sputtered ZnO layers. As a result, the fabricated ZnO homojunction photodetector showed significantly increased responsivity and external quantum efficiency, paving the way for ultra-sensitive UV photodetection.
APPLIED SURFACE SCIENCE
(2022)
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
Materials Science, Multidisciplinary
Chukwudi E. Iheomamere, Corey L. Arnold, Urmilaben P. Rathod, Khalil D. Omotosho, Andrey A. Voevodin, Nigel D. Shepherd
Summary: Spectroscopic and electrical studies of ZnO thin films grown by radio frequency magnetron sputtering at low power without substrate heating revealed improved stoichiometry and reduced free carrier concentration with increasingly energetic growth conditions. Hall measurements showed decreases in carrier concentration as power increased and deposition pressure decreased. These findings were well correlated with XRD, x-ray photoelectron spectroscopy, and photoluminescence results.
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, Ceramics
Sathish, Habibuddin Shaik, K. Naveen Kumar, R. Imran Jafri, Ashok G. Reddy, Sheik Abdul Sattar
Summary: This study prepared Aluminum doped Zinc Oxide (AZO) thin films with different concentrations of Al2O3, analyzing their optical and electrical properties. It was found that a 3% Al2O3 content led to a significant decrease in resistivity, while 7% resulted in a noticeable decrease in optical transmittance. The increase in Al2O3 content was observed to lead to higher carrier concentration and mobility, as well as a decreasing bandgap of the films.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Guangke Tian, Tingting Shi, Xinyu Li, Xubin Lu, Yanyan Wang, Chao Liu
Summary: Nanocrystalline ZrB2-Ag composite films, with Ag nanoparticles as embedded ions, were directly fabricated using DC magnetron co-sputtering. By tailoring the Ag content, it was found that low resistivity and near-zero temperature drift composite films can be obtained. This provides a promising approach for developing sophisticated thin-film resistors with a broader temperature range.
Article
Physics, Multidisciplinary
Cristian L. Teran, Jorge A. Calderon, Heiddy P. Quiroz, A. Dussan
Summary: This study investigates the resistive switching behavior of ZnO thin films deposited via DC magnetron sputtering. The research explores the structural and optical properties of the films, as well as the changes in transport mechanism due to high defect concentration in the samples. The correlation between synthesis parameters, structural characterization, and shape of bipolar switching effect is analyzed, providing insights into the fabrication and control of resistive random access memories.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Chemistry, Physical
Luca Mascaretti, Tapan Barman, Beatrice Roberta Bricchi, Filip Munz, Andrea Li Bassi, Stepan Kment, Alberto Naldoni
Summary: Magnetron sputtering is crucial in producing TiN thin films, impacting their structural, optical, and electrical properties. RF substrate biasing during sputtering process can optimize the plasmonic effects and resistivity of TiN films by introducing a slight under-stoichiometry in the material.
APPLIED SURFACE SCIENCE
(2021)
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, Physical
Jinming Ti, Junhong Li, Qingqing Fan, Wei Ren, Qing Yu, Chenghao Wang
Summary: In this study, ZnO thick films suitable for high frequency focused ultrasonic transducers were prepared by optimizing the sputtering growth process. The transducers fabricated using the optimized process showed stable performance without cracks and had a high center frequency and bandwidth.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Francisco Morales-Morales, Lizeth Martinez-Ayala, Maria R. Jimenez-Vivanco, Heberto Gomez-Pozos
Summary: In this study, nanostructured zinc oxide (ZnO) was successfully deposited on silicon and macroporous silicon using a radio frequency reactive magnetron sputtering technique. The morphological, structural, and optical characteristics of the samples were investigated, revealing that increasing RF power leads to higher residual stress, while increasing deposition temperature improves crystal arrangement.
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
Materials Science, Multidisciplinary
Paulina Kaim, Krzysztof Lukaszkowicz, Marek Szindler, Magdalena M. Szindler, Marcin Basiaga, Barbara Hajduk
Summary: The production technique and parameters of ZnO thin films have a significant impact on their structure, optical properties, and adhesion.
Article
Chemistry, Physical
Florian Bocchese, David Cornil, Emile Haye, Jerome Cornil, Stephane Lucas
Summary: This study investigates the structural, morphological, and optical properties of TAZO films deposited by reactive magnetron using experiments and Density Functional Theory (DFT) simulations. The results show that TiO2 units substitute Zn atoms in the ZnO structure and the formation of Al2O3 occurs. A three-regime model is proposed to explain the evolution of properties at different Ti contents.
SURFACES AND INTERFACES
(2022)
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
Engineering, Electrical & Electronic
Chi-Yang Liu, Shu-Yi Tsai, Chung-Ta Ni, Kuan-Zong Fung
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Materials Science, Ceramics
Chi-Yang Liu, Shu-Yi Tsai, Chung-Ta Ni, Kuan-Zong Fung
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2019)
Article
Engineering, Electrical & Electronic
Shu-Yi Tsai, Kuan-Zong Fung, Chao-Nan Wei, Hui-Yun Bor
JOURNAL OF ELECTRONIC MATERIALS
(2014)
Article
Physics, Applied
Chi-Yang Liu, Shu-Yi Tsai, Chung-Ta Ni, Kuan-Zong Fung, Chun-Yao Cho
JAPANESE JOURNAL OF APPLIED PHYSICS
(2019)
Article
Chemistry, Analytical
S. Divya Rani, R. Ramachandran, Sunirmal Sheet, Md Abdul Aziz, Yang Soo Lee, Abdullah G. Al-Sehemi, Mehboobali Pannipara, Yang Xia, Shu-Yi Tsai, Fong-Lee Ng, Siew-Moi Phang, G. Gnana Kumar
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Physical
Jaroslaw Milewski, Tomasz Wejrzanowski, Kuan-Zong Fung, Arkadiusz Szczsniak, Karol Cwieka, Shu-Yi Tsai, Olaf Dybinski, Jakub Skibinski, Jhih-Yu Tang, Lukasz Szablowski
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
N. Priyanga, A. Sahaya Raja, Mehboobali Pannipara, Abdullah G. Al-Sehemi, Siew-Moi Phang, Yang Xia, Shu-Yi Tsai, J. Annaraj, S. Sambathkumar, G. Gnana Kumar
Summary: In this study, MnO2 nanorods coated tea bag filter paper were developed as a self-standing, bendable, and disposable electrochemical probe for sensitive and selective H2O2 detection. By addressing challenges in H2O2 sensing and utilizing core@shell architecture with MoS2, the MnS@MoS2/TBFP probe showed low detection limit, excellent sensitivity, and wide linear range for H2O2 detection. The non-enzymatic H2O2 detection performances of MnS/MoS2/TBFP were found to be selective, decisive, repeatable, and stable, making them promising for practical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Coatings & Films
Fu Jun Wei, Bang Yen chou, Kuan Zhong Fung, Shu Yi Tsai
Summary: This study investigates the plastic strain distribution of cold spray Cu powders and coatings using electron backscatter diffraction (EBSD) analysis. It is found that more dynamic recrystallization and plastic strain release occur in the as-sprayed EP and GA coatings compared to the WA coating. The influence of recrystallization of twin grains in the GA coating on the ductility of the coating is discussed. The static recrystallization in the postannealing treatment is more prominent in the EP and GA coatings, supporting differences in dynamic recrystallization among the cold-sprayed coatings determined through EBSD analysis. The thermal conductivity of cold-sprayed Cu coatings is affected by recrystallization and strain release.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Gabriela Komorowska, Tomasz Wejrzanowski, Jan Jamroz, Agnieszka Jastrzebska, Wojciech Wrobel, Shu-Yi Tsai, Kuan-Zong Fung
Summary: The cathode design for high-temperature fuel cells needs to consider functional properties such as oxygen catalytic reduction, oxygen ion transport, electrical conductivity, and gas transport, as well as mechanical stability. This research optimized the manufacturing process of composite cathodes and successfully fabricated them using tape casting and firing techniques.
Article
Materials Science, Multidisciplinary
Fu-Jun Wei, Bang-Yen Chou, Kuan-Zong Fung, Shu-Yi Tsai, Chung-Wei Yang
Summary: When cold spraying is performed at a velocity equivalent to or greater than a material-dependent critical velocity, powders undergo plastic deformation and localized heating, leading to metallurgical bonding and/or mechanical interlocking. This study examined the characteristics of Cu feedstocks and their influence on the bonding strength of cold-sprayed Cu coatings. The results showed that annealing released plastic microstrains in Cu powders, and feedstock properties affected the resulting coating's ductility and hardness.
Article
Biochemistry & Molecular Biology
Shu-Yi Tsai, Kuan-Zong Fung
Summary: Co-free layered LiNi0.5Mn0.5O2 has high theoretical capacity and low cost compared to LiCoO2. The preparation method and condition greatly influence the electrochemical performance of LiNi0.5Mn0.5O2. Sol-gel synthesis provides samples with a pure phase and better electrochemical behavior compared to solid-state reaction.
Article
Chemistry, Inorganic & Nuclear
Ricardo Jimenez, Isabel Sobrados, Sandra Martinez-Chaparro, Angel Adolfo del Campo, M. Lourdes Calzada, Jesus Sanz, Shu Yi Tsai, Ming Rui Lin, Kuan Zong Fung, Edvardas Kazakevicius, Algimantas Kezionis
Proceedings Paper
Electrochemistry
K. Z. Fung, C. T. Ni, S. Y. Tsai, J. Y. Tang
SOLID OXIDE FUEL CELLS 15 (SOFC-XV)
(2017)
Article
Materials Science, Ceramics
S. Y. Tsai, C. T. Ni, K. Z. Fung
CERAMICS INTERNATIONAL
(2017)
Proceedings Paper
Electrochemistry
Kuan-Zong Fung, Shu-Yi Tsai, Chi-Yang Liu
SOLID OXIDE FUEL CELLS 13 (SOFC-XIII)
(2013)
Article
Crystallography
Jianzheng Hu, Long Yan, Ning Zhou, Yao Chen, Xiaoni Yang, Lianqiao Yang, Shiping Guo
Summary: The effect and mechanism of carrier gas velocity, V/III ratio, and carrier gas velocity match on the growth rate of AlN were investigated in this study. The results showed that the growth rate of AlN initially increased with hydrogen flow rate, reached saturation, and then decreased monotonically. The turning point value depended on the equipment and process. By increasing the MO VM, the growth rate of AlN could be improved, but the uniformity deteriorated due to turbulence and loss of uniform boundary layer. High quality AlN films were successfully grown on nano-patterned sapphire substrates with improved crystalline quality and atomic smooth surfaces.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Tingting Ma, Yang Li, Kangning Sun, Qinglin Cheng, Sen Li
Summary: This study investigates the melting process and nucleation behavior of sodium crystals using molecular dynamics simulation. The results show good agreement between simulated and experimental values for the melting temperature, density, and radial distribution function of sodium. The diffusion coefficient of liquid sodium increases linearly with temperature, and the homogeneous nucleation rate of melting in superheated sodium crystal exponentially increases with temperature. The findings provide theoretical support for applications involving heat and mass transfer in sodium-related systems.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Hisato Nishii, Shintarou Iida, Akira Yamasaki, Takumi Ikenoue, Masao Miyake, Toshiya Doi, Tetsuji Hirato
Summary: Epitaxial V2O3 films were fabricated on sapphire substrates using mist chemical vapor deposition (mist CVD) method, eliminating the need for high vacuum conditions. The films can be grown on sapphire substrates even under atmospheric pressure, with the optimal growth temperature at 823 K. The films grown at 823 K exhibit a metal-insulator transition at approximately 155 K. The film on C-plane sapphire exhibits a lower transition temperature compared to those on R- and A-plane sapphire substrates.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Jani Jesenovec, Kevin Zawilski, Peter Alison, Stephan J. Meschter, Sambit K. Saha, Andrew J. Sepelak, Peter G. Schunemann
Summary: In this study, NiSb needles were successfully formed in InSb by manipulating the growth rate and adding NiSb. These needle structures in InSb can be used to tune the magnetoresistance of devices. Additionally, undoped InSb crystals demonstrated good infrared transmission at low growth rates.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
D. Joseph Daniel, P. Karuppasamy, H. J. Kim
Summary: The 2-amino 4-methyl pyridinium oxalate (2A4MPO) compound was synthesized and its crystal structure, functional groups, thermal stability, electrical properties, and third-order nonlinear optical properties were studied. The results demonstrate that the synthesized crystal has good structural integrity, thermal stability, and potential for third-order nonlinear optical applications.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
C. W. Lan
Summary: The past two decades have witnessed a significant transformation in solar silicon crystal growth, especially in the competition between multi-crystalline silicon (Multi-Si) and mono-crystalline silicon (Mono-Si). The demand for this crucial material has exponentially surged, with silicon solar panels capturing over 95% of the global PV market share. The advancements in crystal growth technology during this period have set historical benchmarks, with the market share shifting from high-performance multi-crystalline silicon (HPM-Si) to CZ silicon.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Peiyao Hao, Lili Zheng, Hui Zhang
Summary: A novel design of argon gas tube for removing impurities during silicon ingot growth was developed, and numerical simulations showed that it can effectively extract SiO.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Geetika Sahu, Chanchal Chakraborty, Subhadeep Roy, Souri Banerjee
Summary: This article discusses the novel fractal nature of hydrothermally synthesized MoS2 QDs. By adjusting the reaction time, the study found that the average size of QDs increases and then decreases with longer reaction times. STEM images indicate that shorter reaction times lead to sheet formation, while extended reaction times cause sheets to fragment into QDs.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Pengjian Lu, Wei Huang, Junjun Wang, Haitao Yang, Shiyue Guo, Bin Li, Ting Wang, Chitengfei Zhang, Rong Tu, Song Zhang
Summary: A systematic study on the tetramethylsilane-hydorgen (TMS-H-2) system for the deposition of pure single-crystal SiC by high-temperature chemical vapor deposition (HTCVD) method is conducted. The study investigates the effect of temperature, pressure, and H-2:TMS ratio on the deposition conditions and provides a theoretical basis and guidance for improving the quality and cost of industrial production of single-crystal SiC.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Xinyu Jiang, Liangliang Liu, Yanqing Liu, Yan Wang, Zhaoping Hou
Summary: Investigation on the preparation of anisometric templated textured high entropy or multi-element doped ferroelectric ceramics was conducted using A-site disordered niobate microcrystals. The effects of process parameters on the morphology and chemical composition were studied, and the photocatalytic properties of the microcrystals were evaluated.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Mobashsara Tabassum, Md. Ashraful Alam, Sabrina Mostofa, Raton Kumar Bishwas, Debasish Sarkar, Shirin Akter Jahan
Summary: In this study, high crystallinity copper nanoparticles were synthesized by altering the reaction medium at low temperatures. The results show that changing the reaction medium can reduce the surface energy of precursors and promote the formation of highly crystalline copper nanoparticles.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Ivan Bodnar, Vitaly V. Khoroshko, Veronika A. Yashchuk, Valery F. Gremenok, Mohsin Kazi, Mayeen U. Khandaker, Tatiana I. Zubar, Daria I. Tishkevich, Alex Trukhanov, Sergei Trukhanov
Summary: This work presents the production of single crystals of Cu2ZnGeSe4, a semiconducting quaternary compound, using a gas chemical method with iodine as a transporter. The phase state, crystal structure, and lattice constants of the synthesized samples were refined and determined. The band gap of Cu2ZnGeSe4 was calculated using transmission spectrum and it was found that the band gap increases by 12% with decreasing temperature in the range of 20-300 K.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Timur Malin, Igor Osinnykh, Vladimir Mansurov, Dmitriy Protasov, Sergey Ponomarev, Denis Milakhin, Konstantin Zhuravlev
Summary: The effect of growth temperature on the buffer leakage currents of GaN-on-Si layers was investigated. It was found that higher growth temperature results in lower leakage currents. The defects in GaN layers grown at different temperatures were studied using photoluminescence technique, and a correlation between leakage currents, structural perfection, and donor concentration in GaN-on-Si layers was established. It was also observed that reduced growth temperature leads to the formation of inversion domains.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Thi-Hoai-Thu Nguyen, Jyh-Chen Chen
Summary: The effect of heater power control on heat, flow, and oxygen transport for CCz crystal growth was studied. Shorter upper side heater design could improve crystal quality and growth, but with higher power consumption.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Peter Rudolph
Summary: This article presents an overview of selected contributions to the development of crystal growth technology by the Laudise Prize awardee 2023. It discusses various aspects such as shaped crystal growth, the correlation between melt structure and crystal quality, control of intrinsic defects and inclusions, prevention of dislocation cell patterns, and melt growth experiments under a travelling magnetic field.
JOURNAL OF CRYSTAL GROWTH
(2024)
