Article
Chemistry, Physical
Marjana Simonic, Darko Goricanec, Danijela Urbancl
Summary: This study found that pressure has an effect on the crystalline properties of CaCO3, which does not occur immediately after CaCO3 precipitation, but starts to change after 15 minutes of processing. Except for one case where aragonite was precipitated, calcite was found in all experiments.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Evgeny A. Ekimov, Vladimir S. Krivobok, Mikhail V. Kondrin, Dmitry A. Litvinov, Ludmila N. Grigoreva, Aleksandra V. Koroleva, Darya A. Zazymkina, Roman A. Khmelnitskii, Denis F. Aminev, Sergey N. Nikolaev
Summary: This study focused on the size-controllable synthesis of high-quality SiC nanocrystals, demonstrating the ability to tune crystal size by adjusting synthesis temperature. Optical properties of the SiC crystals were investigated, providing insights into carrier distribution in nanoparticles.
Article
Crystallography
Hiroki Saito, Yuki Araki, Hiroyasu Katsuno, Toshitaka Nakada
Summary: By conducting ex situ and in situ observations, we studied the rapid initial process of Ca-P crystallization in SBF. The results revealed a solid-solid phase transition from ACP to DCPD, suggesting a new pathway for Ca-P crystallization. This finding is crucial for understanding the crystallization process of calcium-phosphate.
JOURNAL OF CRYSTAL GROWTH
(2021)
Article
Crystallography
Daniel A. Wilson, Kshitij Gurung, Marjorie A. Langell
Summary: ZnxCu1_xO nanoparticles were synthesized by microwave heating, leading to the formation of single-phase tenorite crystallites with various zinc concentrations. The increase in zinc concentration also resulted in a morphological change in the nanoparticles.
JOURNAL OF CRYSTAL GROWTH
(2021)
Article
Crystallography
Freddy Liendo, Mara Arduino, Fabio A. Deorsola, Samir Bensaid
Summary: This study aims to investigate the impact of different monovalent ions on the nucleation and growth rates of CaCO3 precipitation. Results show that the use of Na2CO3 led to faster nucleation kinetics, while (NH4)2CO3 stabilized vaterite and hindered its transformation. The growth rate was found to be influenced by crystal size and magma density, with the ion effect likely related to the ionic radius of the foreign ion.
JOURNAL OF CRYSTAL GROWTH
(2022)
Article
Crystallography
S. Vinoth, Vaithinathan Karthikeyan, Vellaisamy A. L. Roy, Bhuvanesh Srinivasan, P. Thilakan
Summary: Bismuth Telluride (Bi2Te3) nanocrystallites were synthesized by solvothermal method and characterized by FESEM, XRD, Raman, and laser flash measurements. The surfactant-free growth resulted in incomplete hexagonal flake-like (BTFL) structures, while the PVP surfactant mixed growth produced complete hexagonal morphologies (BTHP). The thermal conductivity, electrical conductivity, and ZT value of the samples were measured and analyzed, showing different behaviors for BTFL and BTHP samples.
JOURNAL OF CRYSTAL GROWTH
(2023)
Article
Crystallography
Odin Bottrill, Matthew Boon, Timothy Barker, Franca Jones
Summary: The impact of three organic molecules on the morphology of calcium oxalate monohydrate in different conditions was studied, with different organic acids showing varied effects. Maleic acid had the most complex impact, interacting with citric acid and inhibiting its effect on the morphology of particles.
JOURNAL OF CRYSTAL GROWTH
(2021)
Article
Materials Science, Ceramics
Iremnur Akcakoca, Mustafa Karayazici, Gulsum Topates
Summary: The effect of pH and time on the morphology of calcium borate powders was studied. Aqueous solutions with five different pH values were prepared, and hydrothermal synthesis was carried out at 200 degrees C for different times. X-ray diffraction and scanning electron microscopy were used to analyze phase formation and powder morphology, and Fourier transform infrared spectroscopy was used to identify the type of borate groups. The results showed that pH directly influenced the growth mechanism of calcium borate crystals, leading to different morphologies.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Crystallography
Maria L. Sushko
Summary: This article discusses the mechanism of structural hierarchy development during crystallization, as well as the driving forces behind it. It is found that crystallization pathways often involve monomer-by-monomer addition, with structural complexity arising from interfacial chemical coupling and fluctuation dynamics in the electric double layers.
JOURNAL OF CRYSTAL GROWTH
(2022)
Article
Chemistry, Multidisciplinary
Zemin Zhang, Florian Vogelbacher, Jianbo De, Yang Wang, Qing Liao, Yang Tian, Yanlin Song, Mingzhu Li
Summary: Solution-processed, surface-patterned perovskite single-crystal microdisk lasers with high crystal quality and improved emission directionality were successfully synthesized using spin-coating and nanoimprinting techniques. These lasers have a low lasing threshold and high quality factor, making them promising for advanced nanophotonic designs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Anatoly Dvurechenskii, Aleksey Kacyuba, Gennadiy N. Kamaev, Vladimir A. Volodin, Zhanna Smagina
Summary: The radiation-induced phenomena during CaSi2 crystal growth were investigated in the epitaxial CaF2 growth process on Si (111) and after film formation with electron irradiation on Si (111). Both approaches lead to the formation of CaSi2 crystals in the irradiated region of the CaF2 film.
Article
Crystallography
Chen Zhuang, Yuhui Zhang
Summary: The influence of saturated alcohols on the morphology of Ca(Min)2 crystals was investigated through crystal growth experiments and molecular simulations. The modified attachment energy model was used to study the crystal-solvent interactions. The results revealed varied adsorption behaviors in different alcohol-water solvents, and showed a correlation between crystal morphology and alcohol properties. This research has potential applications in predicting and controlling the crystal morphology of Ca(Min)2 crystals.
JOURNAL OF CRYSTAL GROWTH
(2023)
Article
Metallurgy & Metallurgical Engineering
Zongye Ding, Qiaodan Hu, Fan Yang, Liao Yu, Tianxing Yang, Naifang Zhang, Wenquan Lu, Jingwei Yang, Jian Qiao, Jianguo Li
Summary: The growth characteristics and morphological development of Al2Cu intermetallic compounds during solidification were studied using synchrotron radiography and first-principle calculations, revealing the preferential growth direction of Al2Cu crystals and the mechanisms behind their formation and transition. The faceted Al2Cu clusters were found to exhibit unique features such as branch formations and partial coalescence, attributed to strain energy increase and solute redistribution during solidification.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2022)
Review
Chemistry, Multidisciplinary
Lan Zhang, Xingyi Ma, Guoqing Wang, Xingguo Liang, Hideyuki Mitomo, Andrew Pike, Andrew Houlton, Kuniharu Ijiro
Summary: The revolutionary concept of non-biological DNA functioning in the material world has become a reality. Non-origami DNA has rich chemical functionality for constructing hybrid nano-architectures, and its potential in building functional nanostructures has been underestimated. Research in this area covers interactions of DNA with inorganic species, DNA nanofabrication, electronic nanodevices, metal nanoparticles, and chiral nanostructures, with applications ranging from plasmonic biosensing and electrical nanodevices to optical bioimaging and photocatalysis.
Article
Crystallography
Supontep Teerakanok, Minglei Zhao, Russell Giordano, Yuwei Fan
Summary: The study showed that increasing fluoride concentration affected the size and shape of hydroxyapatite crystals in enamel remineralization, while magnesium ions did not directly impact crystal morphology. However, a combination of fluoride and magnesium ions resulted in the formation of small needle-like crystals with a greater density.
JOURNAL OF CRYSTAL GROWTH
(2021)
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)