{"title":"Understanding of the surface morphology dynamics of Ni and Fe from scaling analysis: A kinetic Monte Carlo study","authors":"Sonia Blel","doi":"10.1016/j.jcrysgro.2025.128232","DOIUrl":"10.1016/j.jcrysgro.2025.128232","url":null,"abstract":"<div><div>The current paper examines the homo-epitaxial growth for two materials Ni and Fe via Kinetic Monte-Carlo (KMC) simulations based on the solid-on-solid model. We have investigated a qualitative and quantitative study for these materials. The stable surface is studied under various growth temperatures. We have extracted the critical exponents from the corresponding asymptotic behavior of the height-height correction function. Our results were compared to the available theoretical results and seem advantageous for a better understanding of the growth dynamics. We also discussed how the energy value of the next-nearest-neighbor (NNN) affects the scaling exponents and the roughness of the unstable surface morphology, due to the presence of an Ehrlich–Schwoebel (ES) barrier. We found that their effect becomes very clear in the case of Fe rather than Ni material.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"666 ","pages":"Article 128232"},"PeriodicalIF":1.7,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942229","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":"X-ray line diffraction study of preferred oriented hexagonal zincite nanocrystals: A crystallographic investigation","authors":"Md. Ashraful Alam , Md. Khalid Hossain Shishir , Debasish Sarkar , Raton Kumar Bishwas , Shirin Akter Jahan","doi":"10.1016/j.jcrysgro.2025.128230","DOIUrl":"10.1016/j.jcrysgro.2025.128230","url":null,"abstract":"<div><div>Multifunctional nanoscale, pure and high crystalline ZnO (Zincite) at room temperature synthesis through zinc nitrate hexahydrate and ammonium hydroxide prefers to develop hexagonal wurtzite structure consisting of lattice parameters a=b= 3.251 Å, c= 5.208 Å; α=β= 90°, γ= 120° with a Zn-O bond length of 1.9785 Å. Different crystallographic parameter calculated and several identical models were employed to analyze crystallite sizes, lattice strain, stress and density. The specific processing condition prefers to grow in direction of (1<!--> <!-->0<!--> <!-->1), which may influence electronic, optical and functional properties. The Rietveld refinement revealed that synthesized material consists entirely of 100 % Zincite phase. Transmission electron microscope (TEM) analysis revealed a homogeneous distribution of interface nanocrystals, indicating the nanocrystals were in pure form and exhibited a unified contribution with polyhedral morphology. TEM histogram of Zincite showed a nanoscale particle distribution with an average size of approximately 48.39 nm. Selected area electron diffraction (SAED) pattern analysis confirmed that Zincite crystals were highly oriented, predominantly along the (0<!--> <!-->0<!--> <!-->2) plane, with d-spacing of 0.2577 nm, indicating a highly crystalline and well-ordered lattice structure. The atomic mass composition was calculated to be 81 % Zn and 19 % O, confirming a unified crystal structure. Vibrating sample magnetometer (VSM) analysis revealed that the synthesized Zincite nanocrystals exhibited paramagnetic behavior. X-ray photoelectron spectrometer (XPS) analysis explored characteristic Zn 2p peaks, with Zn 2p<sub>3/2</sub> at a binding energy of 1022.19 eV, indicating the presence of Zn<sup>2+</sup> in wurtzite (ZnO) structure.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"666 ","pages":"Article 128230"},"PeriodicalIF":1.7,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922356","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}
Mohamed Yacine Debili , Mohamed Fares , Mohammed Messaoudi
{"title":"In situ XRD study of nano-crystalline NiO formation on Ni-coated carbon fibers: Structural and optical properties","authors":"Mohamed Yacine Debili , Mohamed Fares , Mohammed Messaoudi","doi":"10.1016/j.jcrysgro.2025.128231","DOIUrl":"10.1016/j.jcrysgro.2025.128231","url":null,"abstract":"<div><div>The study focused on nickel-coated carbon fibers, where nickel was partially substituted by carbon, forming a compound Ni<sub>1-x</sub>C<sub>x</sub> (with x = 0 < x < 1). These modified fibers exhibit excellent surface properties, making them promising for nuclear applications, such as detectors and reflectors. The fibers were subjected to annealing treatments under vacuum and in open air at 500 °C. X-ray diffraction (XRD) analysis revealed that oxidation induces long-range carbon diffusion and results in the formation of a NiO layer on the fiber surfaces. Notably, cubic-type nanostructured NiO (NaCl type) was observed to begin forming at 350 °C. Scanning Electron Microscopy (SEM) showed that the coated fibers exhibit a granular morphology with nanometer-sized grains. Using a 375 nm excitation wavelength, photoluminescence measurements displayed two broad emission peaks. These peaks are likely attributed to electronic transitions involving the 3d electrons of Ni<sup>2+</sup> ions. Overall, the work demonstrates that controlled oxidation can tailor the surface properties of these fibers, potentially enhancing their performance in nuclear applications by combining semiconducting and reflective characteristics.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"666 ","pages":"Article 128231"},"PeriodicalIF":1.7,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922355","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":"Green synthesis of α-MoO3 nanorods using Tridax procumbens leaf extract for photodegradation and antimicrobial applications against cationic tri-pigments","authors":"Aswin M. , Ambrose Rejo Jeice , Prammitha Rajaram","doi":"10.1016/j.jcrysgro.2025.128229","DOIUrl":"10.1016/j.jcrysgro.2025.128229","url":null,"abstract":"<div><div>In this study, an eco-friendly synthesis route was developed for the fabrication of α-MoO<sub>3</sub> nanorods using <em>Tridax procumbens</em> leaf extract as a natural reducing and stabilizing agent in a divergent medium. The phytochemicals present in the extract played a crucial role in directing the nanorod formation while eliminating the need for hazardous chemicals. Structural, morphological, and optical properties of the synthesized nanorods were thoroughly examined using X-ray diffraction (XRD), UV–visible spectroscopy (UV–Vis), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDAX), and micro-Raman spectroscopy. The results confirmed the formation of orthorhombic phase α-MoO<sub>3</sub> with a band gap energy of 2.58 eV and a distinct nanorod morphology. The antimicrobial potential of the synthesized α-MoO<sub>3</sub> nanorods was evaluated against <em>Aspergillus flavus</em>, <em>Staphylococcus aureus</em>, and <em>Escherichia coli</em>, showing notable inhibitory effects. Additionally, photocatalytic studies under UV–Vis light revealed efficient degradation of cationic dyes, including Methylene Blue (MB), Brilliant Green (BG), and Rhodamine B (RhB). The enhanced photocatalytic activity is attributed to the reduced band gap and increased surface area of the nanorods. Overall, the green-synthesized α-MoO<sub>3</sub> nanorods demonstrate promising applications in wastewater treatment and antimicrobial processes, offering a sustainable solution for environmental remediation.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"666 ","pages":"Article 128229"},"PeriodicalIF":1.7,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934948","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}
Ning Zhang , Xiufang Chen , Zheyang Li , Xuejian Xie , Xianglong Yang , Wancheng Yu , Xiaobo Hu , Guanglei Zhong , Le Yu , Rui Jin , Xiangang Xu
{"title":"Numerical simulation of thick SiC crystal based on ring-shaped powder structure","authors":"Ning Zhang , Xiufang Chen , Zheyang Li , Xuejian Xie , Xianglong Yang , Wancheng Yu , Xiaobo Hu , Guanglei Zhong , Le Yu , Rui Jin , Xiangang Xu","doi":"10.1016/j.jcrysgro.2025.128220","DOIUrl":"10.1016/j.jcrysgro.2025.128220","url":null,"abstract":"<div><div>Silicon carbide (SiC) has important application prospects in power and radio frequency (RF) devices. However, the expensive SiC substrate is a key factor restricting the cost of the devices. Developing large-diameter and thick SiC crystal growth technology is expected to reduce the cost of SiC substrate. Currently, challenges such as limited thickness, elevated thermal stress, and high defect density remain in SiC crystal growth. Based on simulation tools, the effect of the powder size and the distance between the seed and powders surface on thermal field, crystal thickness and dislocation density are analysed. Then, a ring-shaped powder structure is proposed to enhance both the growth rate and the quality of the crystal. Simulations with different powder sizes in the inner circle and outer ring reveal that when the powder sizes are 500 μm in the inner circle and 10,000 μm in the outer ring, a uniform temperature field, a rapid crystal growth rate, and a low dislocation density can be achieved. Additionally, by optimizing the insulation structure, the crystal achieves a slightly convex surface and a lower dislocation density. The results indicate that the ring-shaped powder structure can enhance powder utilization, enable the growth of thick crystals, and reduce dislocation density.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"665 ","pages":"Article 128220"},"PeriodicalIF":1.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898389","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}
Guanrong Zhu, Tingting Zhang, Xiaoxiao Wei, Guorong Zhang, Leilei Ji, Jiahui Lv, Zeyu Lu, Yuchen Song, Hao Lei, Changyou Liu, Tao Wang, Lingyan Xu, Wanqi Jie
{"title":"The growth of void-free ZnTe-based crystals from Te solution by re-dissolution procedure","authors":"Guanrong Zhu, Tingting Zhang, Xiaoxiao Wei, Guorong Zhang, Leilei Ji, Jiahui Lv, Zeyu Lu, Yuchen Song, Hao Lei, Changyou Liu, Tao Wang, Lingyan Xu, Wanqi Jie","doi":"10.1016/j.jcrysgro.2025.128219","DOIUrl":"10.1016/j.jcrysgro.2025.128219","url":null,"abstract":"<div><div>Void defects are prevalent in ZnTe-based crystals and detrimentally impact their properties. This research aims to elucidate the composition and formation mechanism of the voids. In this experiment, ZnTe crystals were grown by the Te solution method. Energy dispersive spectroscopy (EDS) results demonstrate that the C, Te and Zn elements are distributed on the void surfaces. X-ray photoelectron spectroscopy (XPS) results indicate that the C element mainly exists as zero valence. These results suggest that the carbon film coated on the surface of the quartz crucible must be implicated in the bubble formation. Carbon film possibly reacts with the Te solution to produce a kind of CTe<sub>n</sub> gas, which then dissolves into the Te solution. When the temperature decreases, the solubility of the gases diminishes, leading to the bubbles nucleate at the solid–liquid interface or within the Te solution, and further grow. When a bubble is wrapped by the solid–liquid interface, it evolves into a void in the crystal. To eliminate void in ZnTe-based crystals, the low–high temperature cycle procedure was developed to re-dissolve the crystals near the interface and released void, during the crystal growth. Fourier transform infrared spectrometer (FTIR) spectrum demonstrates that the optical properties of the ZnTe-based crystals grown by the re-dissolution procedure are improved significantly.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"665 ","pages":"Article 128219"},"PeriodicalIF":1.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890878","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}
Haiqin Bian, XuMing Zhang, Wei Wei, ZhengYu OuYang, Jiangying wang, Zhengmei Zhang, Tao Wang
{"title":"Fast adsorption combined with Z-scheme charge migration in ZIF-8/CeO2 enables efficient photocatalytic performance","authors":"Haiqin Bian, XuMing Zhang, Wei Wei, ZhengYu OuYang, Jiangying wang, Zhengmei Zhang, Tao Wang","doi":"10.1016/j.jcrysgro.2025.128217","DOIUrl":"10.1016/j.jcrysgro.2025.128217","url":null,"abstract":"<div><div>Constructing a heterostructure is a key factor in effectively enhancing photocatalytic activity. In this paper, CeO<sub>2</sub> was tightly anchored on the surface of ZIF-8 through a simple co-precipitation method, successfully constructing a Z-scheme heterostructure and accelerating the separation of photogenerated carriers. The photocatalytic activity was evaluated by eliminating RhB and MB with the assistance of visible light. The results showed that the optimized ZC2 exhibited better photocatalytic degradation ability than pure ZIF-8 and CeO<sub>2</sub>, with a degradation rate of 92.8 % and 85.38 % for RhB for MB within 90 min. The improvement of the photocatalytic ability of the ZC series is due to constructing a Z-scheme heterostructure between ZIF-8 and CeO<sub>2</sub>, resulting in effectively reduced interface impedance and increased the separation of photogenerated electron-hole pairs and improving the electron utilization rate. Moreover, the increase in the specific surface area of the composite material provides more active sites for reactants and more possibilities for degrading organic pollutants. The coexistence of multiple free radicals was proved by free radical trapping experiments to achieve efficient degradation of pollutants. In addition, this paper will discuss in detail the transfer of photogenerated carriers and the possible photocatalytic mechanism.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"665 ","pages":"Article 128217"},"PeriodicalIF":1.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895702","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}
Theresa Höldrich , Andrea Wieland , Florian Pantle , Julia Winnerl , Martin Stutzmann
{"title":"Selective growth and characterization of GaN nanowires on SiC substrates","authors":"Theresa Höldrich , Andrea Wieland , Florian Pantle , Julia Winnerl , Martin Stutzmann","doi":"10.1016/j.jcrysgro.2025.128194","DOIUrl":"10.1016/j.jcrysgro.2025.128194","url":null,"abstract":"<div><div>GaN on SiC is a promising material combination for high power devices, where especially nanostructures, such as nanowires or nanofins, are a space and resource saving solution. In this work we demonstrate the selective area growth of GaN nanowires on SiC substrates, using the polytype 6H-SiC. We investigate the influence of the Si- and C-polarity of the substrate on the structural properties of the GaN nanowires by scanning electron microscopy and photoluminescence spectroscopy. On both substrates uniform and hexagonal nanowires are achieved for the respective optimal growth temperature, which is determined to be 20<!--> <sup>$circ $</sup>C higher for Si-polarity. As the polarity combination of the SiC substrate and GaN nanowires strongly influences the electrical properties at the heterointerface due to different charge accumulations, it is necessary to investigate the epitaxial relationship. X-ray diffraction revealed that the GaN nanowires exclusively adopt the orientation of the underlying SiC lattice, leading to an in-plane epitaxial relationship of (1<span><math><mover><mrow><mn>1</mn></mrow><mo>¯</mo></mover></math></span>00)GaN/(1<span><math><mover><mrow><mn>1</mn></mrow><mo>¯</mo></mover></math></span>00)6H-SiC. Polarity-selective wet chemical etching and Kelvin probe force microscopy showed that the GaN nanowires preserve the polarity of the substrate, thus, either a predominantly metal-polar (Si-polar/Ga-polar) or non-metal-polar (C-polar/N-polar) orientation is present. The complete epitaxial relationship on both substrate polarities can be identified as (1<span><math><mover><mrow><mn>1</mn></mrow><mo>¯</mo></mover></math></span>00)[0001]GaN<span><math><mrow><mo>|</mo><mo>|</mo></mrow></math></span>(1<span><math><mover><mrow><mn>1</mn></mrow><mo>¯</mo></mover></math></span>00)[0001]6H-SiC for the large majority of NWs at their respective optimum growth temperatures.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"665 ","pages":"Article 128194"},"PeriodicalIF":1.7,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898390","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}
Lei Zong , Qian Wang , Yuhao Zhang , Lixi Wang , Yuntao Wu
{"title":"Effects of Sc3+ and Y3+ codoping on luminescence and scintillation properties of LaBr3:Ce single crystals","authors":"Lei Zong , Qian Wang , Yuhao Zhang , Lixi Wang , Yuntao Wu","doi":"10.1016/j.jcrysgro.2025.128207","DOIUrl":"10.1016/j.jcrysgro.2025.128207","url":null,"abstract":"<div><div>In this work, the effects of Sc and Y codoping on the luminescence and scintillation properties of LaBr<sub>3</sub>:Ce single crystals were systematically studied. LaBr<sub>3</sub>:Ce single crystals with a diameter of 7 mm codoped with different Sc and Y concentrations were grown by the vertical Bridgman method. It was found the incorporation of Sc codoping does not alter the luminescence mechanism and exhibits limited effects on light yield and energy resolution. In contrast, with the introduction of Y codopant, the LaBr<sub>3</sub>:Ce single crystals exhibit coloration. In addition to the feature Ce<sup>3+</sup> 5d-4f emission, Y codoped LaBr<sub>3</sub>:Ce has a defect-related emission ranging from 450 nm to 800 nm under both photoluminescence and X-ray excitation. Moreover, Y codoping introduces a slow scintillation decay component of 260 ns and an enhanced X-ray afterglow level. Both light yield and energy resolution of LaBr<sub>3</sub>:Ce were significantly deteriorated after Y codoping.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"664 ","pages":"Article 128207"},"PeriodicalIF":1.7,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878972","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":"Czochralski growth and composition control of Tb3Ga5O12 single crystals","authors":"Miki Watanabe , Yuki Maruyama , Katsuhiko Nagao , Yutaka Anzai , Masanori Nagao , Satoshi Watauchi , Isao Tanaka","doi":"10.1016/j.jcrysgro.2025.128205","DOIUrl":"10.1016/j.jcrysgro.2025.128205","url":null,"abstract":"<div><div>Tb<sub>3</sub>Ga<sub>5</sub>O<sub>12</sub> (TGG) single crystals have excellent optical isolator characteristics. However, TGG single crystals grown by the Czochralski method sometimes contain radial stripes along the growth direction, which degrade their optical isolator characteristics. These radial stripes may be caused by a composition mismatch between the melt and crystals. In this study, we grew 25 mmϕ TGG single crystals from Tb-rich melts and precisely measured their lattice constants. The relationship between the composition and lattice constants was determined using sintered polycrystalline TGG. Based on these experiments, the congruent-melting composition was found to be 37.9 mol% Tb<sub>2</sub>O<sub>3</sub>. High-quality, 50-mmϕ TGG single crystals without radial stripes were grown using a starting material composition of 37.8 mol% Tb<sub>2</sub>O<sub>3</sub>, considering the evaporation of Ga<sub>2</sub>O<sub>3</sub> from the melt during crystal growth. We repeatedly grew TGG single crystals by adding the TGG starting material to the residue in the crucible used for growth to complete four additional growth processes. The fluctuation of in the lattice constant of the TGG boules for the first and fifth growths was within 0.0002 Å, which corresponds to a Tb<sub>2</sub>O<sub>3</sub> composition uniformity of 0.01 mol% Tb<sub>2</sub>O<sub>3</sub>. Therefore, we have succeeded in growing uniform TGG single crystals industrially with composition fluctuations within only 0.01 mol% by optimizing the composition of the TGG starting material to 37.8 mol% Tb<sub>2</sub>O<sub>3</sub>.</div></div>","PeriodicalId":353,"journal":{"name":"Journal of Crystal Growth","volume":"665 ","pages":"Article 128205"},"PeriodicalIF":1.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890876","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}