Journal of Crystal Growth最新文献

{"title":"Reduced activation temperature of B impurities in Si(001) epitaxial layers grown by sputter epitaxy using B-doped Si(001) target compared with Si(111) target","authors":"Yoshiyuki Suda ,&nbsp;Nobumitsu Hirose ,&nbsp;Takahiro Tsukamoto ,&nbsp;Akifumi Kasamatsu ,&nbsp;Toshiaki Matsui","doi":"10.1016/j.jcrysgro.2025.128092","DOIUrl":"10.1016/j.jcrysgro.2025.128092","url":null,"abstract":"<div><div>We have investigated the effect of the crystallographic orientation of B-doped Si (p-Si) crystalline targets on the activation temperature of B dopants in Si epitaxial layers grown on Si(001) substrates by the sputter epitaxy method. Specifically, we compared p-Si targets with two different surface orientations, (001) and (111). We found that the activation temperature depended on the crystallographic orientation of the B-doped p-Si target and B impurities began to be activated at a growth temperature of 680 °C when using the p-Si(111) target and at 560 °C, which is 120 °C lower, when using the p-Si(001) target. This phenomenon is discussed in this paper in terms of the difference in the level of crystallographic plane matching between the growth and target surfaces and the associated energetic barrier to B-atom activation. The case of P-doped Si (n-Si) was also compared, which showed no indication of target crystallographic orientation dependence, when comparing n-Si(001) and n-Si(111) targets, and the P activation began at around 250 °C. These findings are considered associated with P being more easily incorporated into Si lattice than B. The hole Hall scattering factors and estimated drift mobilities obtained with the p-Si(111) target were comparable to previously reported values, whereas those obtained with the p-Si(001) target were 0.17 and 15–23 % lower, respectively, suggesting that the p-Si layers grown using the p-Si(001) target had slightly more defects, possibly owing to lower growth temperatures.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"654 ","pages":"Article 128092"},"PeriodicalIF":1.7,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143268977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Columnar dendritic growth during directional solidification of neopentylglycol-(d)camphor investigated under microgravity conditions","authors":"Laszlo Sturz ,&nbsp;Gerhard Zimmermann ,&nbsp;Christoph Pickmann ,&nbsp;Michael Ghosh ,&nbsp;Youness Bami ,&nbsp;Wim Sillekens ,&nbsp;Ana Frutos Pastor ,&nbsp;José Fernandez","doi":"10.1016/j.jcrysgro.2025.128090","DOIUrl":"10.1016/j.jcrysgro.2025.128090","url":null,"abstract":"<div><div>We investigated dendritic solidification in the binary transparent organic model alloy neopentylglycol-(d)camphor under microgravity conditions onboard the International Space Station. Three cartridges containing alloys with hypoeutectic compositions of 0.2, 0.3 and 0.375 wt-frac. (d)Camphor were processed repeatedly in the “Transparent Alloys” solidification facility. In these Bridgman-type experiments, the dendritic grain structure − columnar, equiaxed or both mixed − was determined by <em>in-situ</em> optical observation as a function of alloy composition, crystallographic growth orientation, applied temperature field and cartridge withdrawal velocity. In most experiments, a columnar-equiaxed transition was achieved by increasing the cartridge velocity. We describe the experimental setup and procedure and focus on analysis of the columnar dendritic growth regime here. This includes estimates of the temperature gradient and supercooling at the columnar and eutectic front in combination with thermal modelling, as well as evaluation of a characteristic dendrite spacing. The results complement ground-based and other short-duration microgravity experiments in the same compositional range of the alloy. For eutectic growth, the undercooling increases linearly with cooling-rate. For columnar dendritic growth, the comparison of the kinetic law with previous experimental results exhibits similar trends but also significant deviations, which may be attributed to the different experimental set-up, data analysis and accuracy of temperature prediction. The determined characteristic dendrite spacing is well predicted by the models of Trivedi, Lu/Hunt and Ma/Sahm.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"655 ","pages":"Article 128090"},"PeriodicalIF":1.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-dimensional bismuth chalcogenide-filled single-walled carbon nanotubes: Formation of solid solution and homologous nanostructures","authors":"Marianna V. Kharlamova ,&nbsp;Kiran Bal ,&nbsp;Katarina Hutchin ,&nbsp;Liam Jones ,&nbsp;Reza J. Kasthiban ,&nbsp;Jeremy Sloan","doi":"10.1016/j.jcrysgro.2025.128088","DOIUrl":"10.1016/j.jcrysgro.2025.128088","url":null,"abstract":"<div><div>Metal chalcogenides have been interesting for researchers from the middle of the 20th century. In the 21st century, topological insulators based on metal chalcogenides are a developing and promising field. All such studies have mostly been dedicated to the atomic structure, optical, and electronic properties of these materials. In the present work, SWCNTs were filled with the the topological insulators bismuth selenide, and bismuth telluride. The microstructure of filled SWCNTs were investigated with high-resolution transmission electron microscopy (HRTEM) and annular dark field scanning transmission electron microscopy (ADF STEM). The electronic properties of the composite filled SWCNTs were studied with Raman spectroscopy, which show only a small modification to the electronic structure of nanotubes due to small band gap of the encapsulated chalcogenides. These results are promising for the applications of metal chalcogenide-filled SWCNTs in nanoelectronics, thermoelectric power generation devices, and biomedicine.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"654 ","pages":"Article 128088"},"PeriodicalIF":1.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143268976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Annona reticulata fruit-based phytosynthesis of zinc oxide nanoparticles and assess antioxidant, antibacterial and photocatalytic degradation of textile dyes","authors":"Thangam Chinnathambi ,&nbsp;Kandasamy Selvam ,&nbsp;Chinnappan Sudhakar ,&nbsp;Arunagiri Ragu Prasath ,&nbsp;Duraisamy Senbagam ,&nbsp;Kanagarajan Saranya","doi":"10.1016/j.jcrysgro.2025.128087","DOIUrl":"10.1016/j.jcrysgro.2025.128087","url":null,"abstract":"<div><div>The release of textile dyes into water systems poses a significant risk of increasing the prevalence of multidrug-resistant (MDR) organisms, which can have a detrimental effect on the health of both humans and animals. The efficacy of this method in the efficient removal of multidrug-resistant (MDR) organisms and deleterious dyes from effluent treatment for the purpose of environmental remediation is highly promising. The present study introduces novel zinc oxide nanoparticles (ZnONPs) that are made using <em>Annona reticulata</em> fruit extract as a reducing agent in a green production method. We employed UV–Vis spectroscopy, X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy and field emission scanning electron microscopy (FE-SEM) with energy dispersive X-ray spectroscopy (EDX) to analyse the ARF-ZnONPs that were generated through biosynthesis. The antibacterial effects of green synthesised ARF-ZnONPs were evaluated against both gram-positive and gram-negative bacteria. In addition, the degradation of azo dyes (methylene blue and reactive red 120) was measured under direct sunlight exposure. The ARF-ZnONPs were obtained with an absorption peak maximum at 369 nm, as evidenced by the UV–Vis spectrum. According to the research, the nucleation and stability of ARF-ZnONPs are influenced by phenolic compounds, alkaloids, terpenoids, and proteins present in the fruit extract of <em>A. reticulata</em>, as demonstrated by FT-IR analysis. A hexagonal wurtzite crystal structure is demonstrated in the XRD pattern of ARF-ZnONPs, with an average particle size of approximately 52 nm. The EDX spectrum verified the presence of the element Zn, and the FE-SEM image featured a hexagonal architecture. Against <em>S. aureus</em>, the maximum area of inhibition was 21.23 ± 0.35 mm, while against <em>P. aeruginosa</em>, it was 19.34 ± 0.26 mm. The degradation of azo dyes (MB and RR 120) was measured under direct sunlight exposure to evaluate the photocatalytic efficiency of ARF-ZnONPs. Thus, the aforementioned findings indicate that the ARF-ZnONPs synthesised using the environmentally benign method can be employed for a diverse array of antibacterial and environmental applications.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"654 ","pages":"Article 128087"},"PeriodicalIF":1.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143348965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural modulation of 2D and quasi-2D perovskite single crystals via ion doping","authors":"Renjia Li,&nbsp;Haoze Wang,&nbsp;Ziluo Fei,&nbsp;Jiapeng Li,&nbsp;Qikai Wang,&nbsp;Qinghua Kong,&nbsp;Qiuhong Cui","doi":"10.1016/j.jcrysgro.2025.128091","DOIUrl":"10.1016/j.jcrysgro.2025.128091","url":null,"abstract":"<div><div>Two-dimensional (2D) and quasi-2D perovskites have been extensively studied due to their enhanced environmental stability while retaining the excellent properties of three-dimensional (3D) perovskites. Herein, we prepared 2D and quasi-2D perovskite single crystals using space-confined solution method and re-precipitation method, respectively. Moreover, the structural modulation of prepared single-crystal perovskites (2D and quasi-2D) was explored through ion doping, which helps to thoroughly investigate the properties of perovskites. The results show that in (PEA)₂Pb(Br_1-xCl_x)₄ perovskites, as the ratio of chloride ions to bromide ions increases, lattice distortion occurs, leading to exciton-phonon coupling and the transition from narrow-band emission to broadband emission. In (PEA)₂(MA)_n-1Pb_nBr_3n+1 perovskites, MA⁺ can modulate the number of layers in (PEA)₂(MA)_n-1Pb_nBr_3n+1, thereby precisely tuning the bandgap and controlling the emission range. The comprehensive study of doping in regulating the structure and properties of perovskite single crystals provides an important approach for precisely controlling their structure and properties for the potential applications in optoelectronic devices such as LEDs and photodetectors.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"654 ","pages":"Article 128091"},"PeriodicalIF":1.7,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143348966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Holmium-doped TbVO4 as a highly potential magneto-optical crystal for Faraday isolator” [J. Cryst. Growth 642 (2024) 127795]","authors":"Wenyu He,&nbsp;Hu Liu,&nbsp;Ziqi Guo,&nbsp;Xianchao Zhu","doi":"10.1016/j.jcrysgro.2024.128015","DOIUrl":"10.1016/j.jcrysgro.2024.128015","url":null,"abstract":"","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"651 ","pages":"Article 128015"},"PeriodicalIF":1.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the metastable zone width of sparingly-soluble compounds during controlled addition of reactants","authors":"Keshra Sangwal","doi":"10.1016/j.jcrysgro.2025.128079","DOIUrl":"10.1016/j.jcrysgro.2025.128079","url":null,"abstract":"<div><div>Two novel approaches of metastable zone width (MSZW) for sparingly-soluble compounds by reaction crystallization based on known concepts of crystallization processes are proposed. In these approaches theoretical equations relating the MSZW of sparingly-soluble compounds with the feeding rate <em>R</em>_B of one of the reactants are derived from consideration of the dependence of stationary three-dimensional (3D) nucleation rate <em>J</em> of the solute on the generating supersaturation ln<em>S</em> described by power-law relation and classical nucletion (CN) theory. The final equations of the models are then used to analyze the published experimental MSZW data of reaction crystallization of Li₂CO₃, having a negative temperature coefficient of solubility in water, obtained between 10 and 80 °C from aqueous LiCl solutions by addition of aqueous Na₂CO₃ solution at different feeding rate <em>R</em>_B. Both models are found to describe experimental MSZW data satisfactorily. Procedures for calculations of the constants (nucleation constant <em>K</em> and nucleation order <em>m</em>) of the power-law approach and the preexponential constant <em>A</em> and the parameter <em>B</em>, containing the interfacial energy <em>γ</em>, of the CN theory and relationships between different constants are described and discussed. The main findings of the study are as follows:<ul><li><span>(1)</span><span><div>The nucleation constant <em>K</em> is related with the preexponential factor <em>A</em>, whereas the nucleation order <em>m</em> is related with the interfacial energy <em>γ</em>_eff.</div></span></li><li><span>(2)</span><span><div>The preexponential factor <em>A</em> rapidly decreases with an increase in solution temperature <em>T</em> of Li₂CO₃ is associated with a decrease in the radius <em>r</em>_c of 3D nuclei and the parameter <em>f</em> related with the solute solubility <em>c</em>₀ with increasing <em>T</em>.</div></span></li><li><span>(3)</span><span><div>The experimentally observed values of <em>γ</em>_eff are lower than the theoretical values of <em>γ</em> for all <em>T</em> and suggests that Li₂CO₃ crystallization occurs by 3D heterogeneous primary nucleation in the entire investigated temperature interval.</div></span></li></ul></div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"654 ","pages":"Article 128079"},"PeriodicalIF":1.7,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and photoresponse characteristics of dilithium phthalocyanine nanowires","authors":"Yanshu Shi ,&nbsp;Mengke Guo ,&nbsp;Xuekun Wang ,&nbsp;Yiqian Wang ,&nbsp;Jile Wang ,&nbsp;Xiaoyun Qin ,&nbsp;Yumin Song ,&nbsp;Tingting Guo","doi":"10.1016/j.jcrysgro.2025.128072","DOIUrl":"10.1016/j.jcrysgro.2025.128072","url":null,"abstract":"<div><div>Nanoscale crystal materials have received much attention in the field of photodetection due to their unique physical and chemical properties. In this study, dilithium phthalocyanine nanowires (Li₂Pc NWs) were grown by physical vapor deposition (PVD) in the relatively high temperature region. The diffraction peak positions and crystal parameters are reported for the first time. Photoresponse tests showed that the Li₂Pc NWs displayed stronger variations in photodark currents than the raw materials at both 0.5–10 V bias voltages and 395–850 nm irradiation wavelengths. The photoresponsivity of the Li₂Pc NWs was enhanced with increasing voltage, reaching a maximum photoresponsivity of 2.53 × 10⁻⁵ A·W⁻¹ at 10 V and 2.61 × 10⁻⁶ A·W⁻¹ at 455 nm. The unique crystal structure and good photoresponse indicate that Li₂Pc NWs have the potential to be applied in the field of photodetection, which provides new possibilities for their development.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"654 ","pages":"Article 128072"},"PeriodicalIF":1.7,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of deuterium effect on the morphology of calcium sulfate hemihydrate whiskers","authors":"Tian-Bo Fan,&nbsp;Li-Qiang Jiao,&nbsp;Xin’ai Zhang,&nbsp;Qiu-Tong Li,&nbsp;Hong-Fan Guo,&nbsp;Xue Li","doi":"10.1016/j.jcrysgro.2025.128077","DOIUrl":"10.1016/j.jcrysgro.2025.128077","url":null,"abstract":"<div><div>It was proposed that even ppm-level variations in deuterium content significantly impact the physical and chemical properties of water processes, a phenomenon known as the “deuterium effect.” To explore this effect on reactive crystallization morphology, calcium sulfate hemihydrate whiskers were synthesized via hydrothermal synthesis. Results show that as deuterium content decreases, the whiskers’ morphology improves, with smoother surfaces, reduced diameters, and increased lengths. Controlling reaction conditions can obtain whiskers with nanowire morphology. Solubility measurements of calcium sulfate, calcium chloride and magnesium sulfate in water with varying deuterium content reveal that the trend of decreasing deuterium content was similar to the effect of increasing temperature on solubility, suggesting that lower deuterium content enhances water activity, which in turn affects the morphology of crystallization in aqueous solutions. The results preliminarily confirmed the existence of deuterium effect and laid a foundation for its further application.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"653 ","pages":"Article 128077"},"PeriodicalIF":1.7,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143128598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nucleation control and separation of metacetamol polymorphs through swift cooling crystallization process","authors":"Architha Natarajan,&nbsp;Srinivasan Karuppannan","doi":"10.1016/j.jcrysgro.2025.128078","DOIUrl":"10.1016/j.jcrysgro.2025.128078","url":null,"abstract":"<div><div>This study explores the polymorphic control and separation of metacetamol in pure aqueous solution through swift cooling crystallization process. The impact of relative supersaturation</div><div>(σ = 0.76–16.19) created during crystallization process on the induction period, nucleation and morphology of metacetamol was investigated. Our findings demonstrate that lower relative supersaturation levels (σ = 0.76–2.84) facilitates the nucleation of only stable form I. At intermediate relative supersaturation levels (σ = 3.02–4.61), both form I and hemihydrate nucleated concomitantly, while at higher relative supersaturation levels (σ = 4.72–16.19) favoured only hemihydrate nucleation. Additionally, the induction time for nucleation decreased as relative supersaturation increased. External morphology of the nucleated form I and hemihydrate was examined using in-situ optical microscopy. Structural conformation and thermal behaviour of the grown polymorphs was determined by powder X-ray diffraction, differential scanning calorimetry analyses respectively. This method offers optimized nucleation regions for form I and hemihydrate of metacetamol.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"654 ","pages":"Article 128078"},"PeriodicalIF":1.7,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}