Article
Optics
Yaqiao Wu, Kaiyue Wang, Xing Wei, Ruiang Guo, Zhijian Guo, Gangyuan Jia, Yufei Zhang, Zunpeng Xiao, Chunhui Ren, Yuming Tian
Summary: In this study, the effects of B ion irradiation on the optical centers of diamond were investigated using photoluminescence spectra. High density optical centers were observed at specific wavelengths, and it was found that B ion irradiation and subsequent annealing promoted the formation of these centers. Spatial distribution analysis revealed the mechanism of optical center formation.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Multidisciplinary
A. A. Razgulov, S. G. Lyapin, A. P. Novikov, E. A. Ekimov
Summary: This study reports on the temperature shift and broadening of the zero phonon line (ZPL) of SnV center in HPHT microcrystalline diamond in the temperature range of 80-300 K. By studying the pressure effect on the ZPL, contributions of lattice thermal expansion and electron-phonon coupling were separated. A strong nonlinearity observed in the electron-phonon part of the ZPL temperature shift appeared to be related to the effect of the strong softening of elastic springs, showing good agreement with a polynomial law increment.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Imen Elhamdi, Hajer Souissi, Olfa Taktak, Jaber Elghoul, Souha Kammoun, Essebti Dhahri, Benilde F. O. Costa
Summary: This work focuses on the synthesis and study of ZnO nanoparticles doped with nickel. The samples were synthesized using a co-precipitation technique and analyzed through various techniques. The results confirm the stoichiometry of the samples and reveal the hexagonal wurtzite phase of polycrystalline ZnO. The optical spectrum shows the presence of ultraviolet emission and characteristic luminescence from Ni2+.
Article
Chemistry, Physical
Sen Zhang, Benjian Liu, Jiwen Zhao, Yicun Li, Xiaobin Hao, Xiaohui Zhang, Pengfei Qiao, Ying Liang, Bo Liang, Wenchao Zhang, Wenxin Cao, Lei Yang, Jiecai Han, Kang Liu, Bing Dai, Jiaqi Zhu
Summary: This study found that increasing the conversion efficiency of color centers in diamonds on metal surfaces can improve lattice quality and PL intensity, which is significant for the applications of related technologies.
Article
Physics, Applied
Masanori Fujiwara, Haining Fu, Nene Hariki, Izuru Ohki, Yuto Makino, Ming Liu, Akihiko Tsurui, Taro Yoshikawa, Masahiro Nishikawa, Norikazu Mizuochi
Summary: Nanodiamonds with group-IV color centers, such as silicon-vacancy centers and germanium-vacancy (GeV) centers, have excellent properties and can be used for temperature sensing with sub-kelvin accuracy.
APPLIED PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Deepu Kumar, Rahul Kumar, Mahesh Kumar, Pradeep Kumar
Summary: This study investigates the dynamics of excitons/trions and their coupling with phonons and charge carriers in vertically and horizontally aligned MoS2. The results show that the dynamics of excitons/trions and their coupling are more affected in vertically aligned MoS2. Additionally, interlayer coupling has significant effects on both systems, as observed through temperature-dependent valence band splitting and trion binding energy. The intensity of the trion band also exhibits significant thermal quenching compared to the exciton bands.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Physics, Applied
Yafei Huang, Katsuhiko Saito, Tooru Tanaka, Qixin Guo
Summary: Monolithic and phosphor-free LEDs based on vertically integrated Ga2O3:Tm, Ga2O3:Eu, and Ga2O3:Er films have achieved direct white light emission with current-controlled color tunability. The white light emission results from the combination of emissions from different ions, demonstrating full color tunability by intentionally modifying the thickness ratios of different monolayers. This study paves the way for full-color displays and solid-state lighting technology using rare-earth doped Ga2O3.
APPLIED PHYSICS LETTERS
(2021)
Article
Optics
Man Zhao, Qijing Lin, Qingzhi Meng, Wenjun Shan, Liangquan Zhu, Yao Chen, Libo Zhao, Zhuangde Jiang
Summary: In this study, a cone-shaped microlens was fabricated and integrated with a multimode fiber to improve the laser excitation and fluorescence collection efficiency of NV centers in diamonds. Experimental results showed a 21-fold enhancement in fluorescence intensity and a 12-fold improvement in sensitivity. This research presents a robust fiber-microlens magnetometer probe with large numerical aperture, which can be used for magnetic field scanning and real-time monitoring.
Article
Chemistry, Physical
A. Watanabe, T. Nishikawa, H. Kato, M. Fujie, M. Fujiwara, T. Makino, S. Yamasaki, E. D. Herbschleb, N. Mizuochi
Summary: The study focuses on the spin and optical properties of NV centers in phosphorus-doped n-type diamond, demonstrating an extension of spin-coherence time, stabilization of charge state, and improvement of creation yield at a depth of approximately 15 nm. The longest T-2 of about 580 μs for shallow NV centers approaches the limit in bulk diamond, limited by the nuclear spins of natural abundant C-13.
Article
Chemistry, Physical
Jiance Jin, Yinghui Peng, Yuting Xu, Kai Han, Anran Zhang, Xiao-Bao Yang, Zhiguo Xia
Summary: This study doped Sb3+ into an inorganic non-emissive material and achieved bright green emission. Through a comparison of Raman spectra and Debye temperature, the mechanism of lattice softening caused by Sb3+ doping was elucidated. The results of this study demonstrate that efficient emission of metal halides can be triggered by Sb3+ doping.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Biao Yu, Bing Yang, Haining Li, Jiaqi Lu, Nan Huang, Lusheng Liu, Xin Jiang
Summary: Three different surface oxidation approaches were studied to investigate their effects on microstructural evolution and SiV photoluminescence in nanocrystalline diamond films. The results showed that the thickness and crystallinity of the oxidation layer played key roles in the PL enhancement of SiV centers.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Applied
Dinesh K. Bommidi, Andrea D. Pickel
Summary: Nitrogen vacancy (NV) centers, commonly used for thermometry, show temperature-dependent excited state lifetimes in individual nanodiamonds, which could lead to new approaches for all-optical temperature measurements. Experimental results demonstrate a significant decrease in excited state lifetimes with increasing temperature, providing potential for high-resolution single-ND temperature sensing.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Sadman Shakib, Benoit Rogez, Samira Khadir, Julien Polleux, Alois Wurger, Guillaume Baffou
Summary: Thermophoresis refers to the motion of particles along temperature gradients, which can be crucial in applications involving nano- and microscale heating. Recent studies have observed significant thermophoresis in nanoplasmonic applications and introduced a novel method for quantifying this effect.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Marios Zacharias, Pantelis C. Kelires
Summary: Through calculations and a special method, we demonstrate the quantum confinement scaling law of phonon-induced gap renormalization of graphene quantum dots, showing strong quantum confinement effects in GQDs within the sub-10 nm range and laying the foundation for designing temperature-dependent electronic structures.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Lu Cheng, Siqi Zhu, Xiaoping Ouyang, Wei Zheng
Summary: In this study, systematic measurements and analysis were conducted on the temperature dependence of the phonon-assisted intrinsic absorption edge of high-quality electronic-grade diamond in a wide temperature range (10-620 K). By combining the findings with an image model of the indirect phonon-assisted transition of diamond, a more accurate bandgap value of diamond (Eg = 5.480 +/- 0.004 eV) was obtained, with the temperature dependence of its bandgap also measured in detail. The results of this work are expected to provide more accurate references for the indirect bandgap and temperature dependence of diamond.
DIAMOND AND RELATED MATERIALS
(2023)
Review
Food Science & Technology
Qi Cui, Yang Xia, Qijun Wu, Qing Chang, Kaijun Niu, Yuhong Zhao
Summary: Food frequency questionnaires (FFQs) are commonly used tools for assessing dietary intake. This study comprehensively evaluated the validity of FFQs and found that they are suitable for assessing overall dietary intake in nutritional epidemiological studies.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Computer Science, Artificial Intelligence
Lingbo Liu, Zewei Yang, Guanbin Li, Kuo Wang, Tianshui Chen, Liang Lin
Summary: This paper discusses an important task in land remote-sensing analysis, which is the automatic extraction of traffic roads from remote-sensing data. To address this problem, the authors introduce a novel neural network framework that utilizes the complementary information from different data sources to enhance the accuracy and robustness of road extraction.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
Article
Chemistry, Multidisciplinary
Han-Yang Xu, Yan-Hong Jiao, Shi-Yu Li, Xu Zhu, Sheng Wang, Yu-Yang Zhang, Yi-Jun Wei, Yu-Jun Shen, Wei Wang, Yu-Xian Shen, Jun-Tang Shao
Summary: This study investigates the role of Mesencephalic astrocyte-derived neurotrophic factor (MANF) in alcohol-associated liver disease (ALD) and hepatic steatosis. The results demonstrate that MANF plays a protective role in ethanol-induced steatosis by enhancing arginosuccinate synthase 1 (ASS1) activity and activating the AMPK signaling pathway. This study reveals a new mechanism linking lipid metabolism and the hepatic urea cycle under excessive alcohol exposure.
ACTA PHARMACOLOGICA SINICA
(2023)
Article
Materials Science, Paper & Wood
Jianjun Gu, Xiaofei Yan, Dongming Qi, Ruyi Xie, Xiaoming Yang, Yaobang Li, Jiawei Li
Summary: In this study, a durable multifunctional coating was successfully fabricated on cotton fabric, providing it with flame retardant, antibacterial, superhydrophobic and self-cleaning properties. The coated fabric exhibited excellent durability even after multiple washing cycles.
Article
Medical Informatics
Jiajun Liu, Shein-Chung Chow
Summary: In clinical trials, when the primary analysis fails to meet the study objective, the observed positive results in a specific sub-population analysis raise the question of whether they can be used to support regulatory submission. This article proposes several statistical evaluations for confirming the integrity and validity of the observed sub-population analysis results. The evaluations address selection bias, reproducibility, consistency, generalizability, and sensitivity index. A numerical example of a global clinical trial is presented, along with recommendations for incorporating statistical evaluations. Real-world data and evidence are suggested as possible solutions to address regulatory concerns and increase statistical power.
THERAPEUTIC INNOVATION & REGULATORY SCIENCE
(2023)
Article
Computer Science, Interdisciplinary Applications
Maolin Yang, Pingyu Jiang, Jiajun Liu
Summary: Social product design (SPD) is a new pattern that utilizes socialized design resources to enhance design power with lower costs. However, the characteristics of socialized designers (SDs) result in problems such as low collaboration efficiency and trust. To address these problems, a Blockchain and modified Best-worst algorithm enhanced Blackboard model is established. The model improves collaboration efficiency and provides reliable recording and estimation of SDs' contributions during the SPD process, enhancing the operability of SPD application.
COMPUTERS & INDUSTRIAL ENGINEERING
(2023)
Article
Polymer Science
Yanning Zeng, Jiawei Li, Chaoying Hu, Bin Yang, Zhao Ning
Summary: Novel self-healing, weldable, and recyclable HTPB-based PU networks with dual reversible covalent bonds were fabricated using one-pot polycondensation. The networks exhibited good mechanical properties and the ability to be recycled.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Spectroscopy
Kang Wang, Gang Li, Mei Zhou, Huiquan Wang, Dan Wang, Ling Lin
Summary: This paper presents a novel method called spectral elimination for noninvasive quantitative analysis of human blood components. The method reduces the influence of non-target components on the detection of target components, resulting in high accuracy. Experimental results demonstrate the effectiveness of the method in predicting the content of multiple human blood components.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Obstetrics & Gynecology
Jun-Qi Zhao, Xiao-Bin Wang, Xu Leng, Yi-Fan Wei, Dong-Hui Huang, Jia-Le Lv, Qiang Du, Ren-Hao Guo, Bo-Chen Pan, Qi-Jun Wu, Yu-Hong Zhao
Summary: This study found that plant-based fat consumption was associated with decreased odds of asthenozoospermia, while animal-based monounsaturated fatty acid (MUFA) consumption was positively related to increased odds of asthenozoospermia. These findings provide novel evidence for the prevention of asthenozoospermia through decreasing animal-derived fat and fatty acid consumption and smoking cessation.
HUMAN REPRODUCTION OPEN
(2023)
Article
Immunology
Songling Zhu, Shufen Zhong, Kebin Cheng, Li-Sha Zhang, Jiu-wu Bai, Zu Cao, Su Wang, Wen Chen, Shipeng Cheng, Liyan Ma, Zhiyang Ling, Yuying Huang, Wangpeng Gu, Xiaoyu Sun, Chunyan Yi, Meng Zhao, Shuo Liang, Jin-Fu Xu, Bing Sun, Yaguang Zhang
Summary: Vitamin B6 regulates MDM2-mediated IL-33 stability to constrain the type 2 immune response, which may help develop a potential preventive and therapeutic agent for allergy-related diseases.
CELLULAR & MOLECULAR IMMUNOLOGY
(2023)
Article
Computer Science, Artificial Intelligence
Lingyun Sun, Zhuoshu Li, Zhibin Zhou, Shanghua Lou, Wenan Li, Yuyang Zhang
Summary: With the increasing utilization of machine learning, the design research community has been exploring how to support the conceptual design of ML-enhanced products. However, creating UX value for these products remains challenging due to the unique characteristics of ML and complex factors in conceptual design. To address this, a UX value framework and CoMLUX design process were developed, providing a systematic understanding of the co-creators of ML-enhanced products and guidance for designing with growability and transparency. The usage methods of the framework and process were demonstrated in an actual project, along with a summary of inspirations and limitations.
AI EDAM-ARTIFICIAL INTELLIGENCE FOR ENGINEERING DESIGN ANALYSIS AND MANUFACTURING
(2023)
Article
Public, Environmental & Occupational Health
Zhendong Wu, Chen Xu, Liyan Zhang, Yang Wang, George W. Leeson, Gong Chen, Julien S. Baker, Xiao-Guang Yue
Summary: Older adults are prone to higher levels of depression due to physical deterioration and shrinking social networks after retirement. Volunteering is an important social activity that can help alleviate depression by building social networks. This study, using data from the China Longitudinal Aging Social Survey, examines the impact of volunteering on depression among older adults. The results show that participating in volunteering, especially demanding specialized skills, more frequent participation, and a wider variety of activities, has a positive influence on depression levels in older adults.
INTERNATIONAL JOURNAL OF MENTAL HEALTH PROMOTION
(2023)
Article
Biochemical Research Methods
Wenshuai Wu, Gaozhe Cai, Yang Liu, Yuanjie Suo, Boran Zhang, Wei Jin, Yinghua Yu, Ying Mu
Summary: A 3D microwell array chip is developed for comprehensive antibiotic susceptibility testing (AST) of pathogens in urine at the single-cell level. The chip features high integration, dynamic range, and requires minimal user input, enabling faster AST results in 3 hours compared to conventional methods. The chip allows for simultaneous assessment of bacterial concentration and minimum inhibitory concentrations for comprehensive infection information.
Article
Cell & Tissue Engineering
Aoyuan Fan, Genbin Wu, Jianfang Wang, Laiya Lu, Jingyi Wang, Hanjing Wei, Yuxi Sun, Yanhua Xu, Chunyang Mo, Xiaoying Zhang, Zhiying Pang, Zhangyi Pan, Yiming Wang, Liangyu Lu, Guojian Fu, Mengqiu Ma, Qiaoling Zhu, Dandan Cao, Jiachen Qin, Feng Yin, Rui Yue
Summary: Fap degrades denatured type II collagen and plays a critical role in osteoarthritis progression. Its inhibition can ameliorate cartilage degradation and may be a potential therapeutic target.
Article
Computer Science, Artificial Intelligence
Xiang Shi, Yinpeng Liu, Jiawei Liu, Qikai Cheng, Wei Lu
Summary: Scientific papers are crucial for academic communication, but many of them lack in-depth research and present core content ambiguously, hindering the progression of science and technology. To address this challenge, the INTEGrity vERification (INTEGER) task is introduced to help researchers assess the integrity of their papers and verify the clarity of each knowledge unit. A multi-task learning model utilizing Tucker decomposition and span-level attention mechanism is proposed to accurately identify terms and their integrity. Experimental results show the effectiveness of the model.
EXPERT SYSTEMS WITH APPLICATIONS
(2024)
Article
Materials Science, Multidisciplinary
Shuanghui Zeng, Xue Wang, Yunqian Zhang, Jiaojing Shao, Zhao Ding, Jie Zhao
Summary: A free-standing 3D core/shell composite material CNTs@Co9S8 on nickel mesh has been prepared using a simple two-step method. The composite material exhibits excellent conductivity and charge storage capability, making it a promising candidate for supercapacitor applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Marieta Belcheva, Georgi Georgiev, Boyko Tsyntsarski, Urszula Szeluga, Lyudmila Kabaivanova
Summary: This study successfully prepared new antibacterial materials by combining activated carbon with metal nanoparticles, taking advantage of the well-known antibacterial activity of metal nanoparticles. The obtained composites exhibited strong antibacterial effects against E. coli and S. aureus, with the antibacterial activity depending on the contact time, bacterial species, nature of the metal, and metal concentration. The findings provide novel materials with antibacterial properties for further development and potential application in hygiene devices.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
V. P. Madhurima, Kusum Kumari, P. K. Jain
Summary: In this study, carbon nanomaterials were synthesized using the arc discharge technique, with a focus on optimizing process parameters to improve yield and quality. The materials were characterized using various analytical tools, and their dye adsorption capabilities were evaluated. The results showed that carbon soot had better adsorption performance compared to carbon nanotubes, indicating the potential of these carbon nanomaterials for environmental remediation applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaolong Sun, Bo Cui, Pingping Liang, Qimeng Liu, Nan Gao, Hongdong Li
Summary: This study explores the potential of hafnium (Hf) terminated diamond surfaces in achieving negative electron affinity (NEA). By using swarm-intelligence structural search and first-principles calculations, the researchers found that Hf-terminated diamond surfaces exhibit stable NEA properties and high thermal stability, making them promising candidate materials for electron emission applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
N. Soltani, N. Tavakkoli, E. Eslami, L. S. Mirmohammadi
Summary: In this project, a carbon paste electrode modified with graphene and ZnFe2O4 spinel nanoparticles (Gr/ZnFe2O4/CPE) was used to measure naproxen, and various electrochemical methods were used to investigate its behavior. By optimizing the parameters, good measurement results were obtained.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xiwei Cui, Yue Qin, Xin Han, Huanyi Chen, Xinxin Ruan, Hui Zhang, Chengcheng Jiao, Rongqi Mao, Jinglin Hao, Sizhuang Zhao, Shuai Hou, Xiaoxuan Pian, Yandong Wang, Kazuhito Nishimura, Lifen Deng, Nan Jiang
Summary: This paper investigates the friction and wear behaviors of two types of polycrystalline diamonds against different materials. The results show that increasing surface roughness leads to an increase in coefficient of friction. The coefficient of friction and wear rate of ceramic Si3N4 balls are generally lower than those of steel GCr15 balls, except for one type of polycrystalline diamond. Transfer films of SiO2 and its hydrate are observed at the friction interface, which contribute to smoother friction and wear. Carbon-based transfer films are also identified, mainly catalyzed by residual cobalt in the polycrystalline diamonds, leading to a phase transformation.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Menglei Sun, Pengjun Li, Mao Wang, Yidan Liang, Xudong Yang, Shujie Pang
Summary: In this study, carbonized polymer dots were synthesized by a one-step hydrothermal method, and silver nanoclusters were synthesized by UV lamp irradiation. They were then self-assembled by electrostatic force to prepare a dual-emission fluorescent nanocomposite that responds to temperature changes. The nanocomposite showed two emission peaks and exhibited excellent linearity between 20°C and 80°C.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Mohamed J. Saadh, Durgesh Singh, Diego Mayorga, Anjan Kumar, Maria Albuja, Ahmad Ismael Saber, Mohammed Ahmed Mustafa, Yasser Elmasry, Noubu Sun
Summary: Based on density functional theory, it is found that the C3N monolayer has good adsorption capability for Hg0 and a short recovery time. This study suggests that the C3N monolayer is a promising adsorbent material for efficient control of gaseous mercury.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Rajendra Kumar Nare, Sivalingam Ramesh, Vijay Kakani, Yuvaraj Haldorai, Chandrasekaran Karthikeyan, Basivi Praveen Kumar, Nadavala Siva Kumar, Mohammad Asif, S. Naresh Kumar, D. Prakash Babu, K. Ramakrishna Reddy, Visweswara Rao Pasupuleti
Summary: This study examines the latest advancements in carbon nanotube (CNT) supercapacitors and related composites, aiming to identify strategies for enhancing their performance. The researchers used ultrasonication aided hydrothermal technique to synthesize a composite made of nitrogen doped carbon nanotubes and porous NiCo2O4 nanomaterial. The composite electrode exhibited excellent cycling stability and a rising specific capacitance, making it appealing for high-performance supercapacitor applications.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
D. Mary Deena, S. Arockia Anushya, A. Dhanusha, T. C. Sabari Girisun, A. Philominal
Summary: A single-beam Z-Scan experiment was conducted to investigate the nonlinear optical absorption and optical limiting properties of Bi2O3, rGO/Bi2O3, Bi2O3/WO3, and rGO/Bi2O3/WO3 nanostructures. The results showed that the synthesized nanostructures exhibited varying levels of nonlinear absorption, with bismuth-based nanostructures showing the lowest optical limiting threshold and a higher two-photon absorption coefficient. The presence of rGO contributed to the extended conjugation for charge transfer, while the strong UV-Visible absorption of Bi2O3 and WO3 led to a unique nonlinear optical response.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Weibing Guo, Yiren Hu, Tao Wang, Xiaoguang Chen
Summary: This study investigated the microstructure and forming mechanism of graphite/copper joints that were brazed using Ti-containing filler. The results showed that increasing the brazing temperature improved the heat transfer and tensile properties of the composites. Additionally, the composites exhibited high heat flux and faster heating rate compared to copper and aluminum.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ming Li, ZhiWen Wang, Yu Teng, Hongyu Zhao, Bowei Li, Yang Liu, Shengxue Wang, Zhenze Yang, Liangchao Chen, Hongan Ma, Xiaopeng Jia
Summary: In the experiment, different Ni-content catalysts were used to synthesize diamond crystals, and the properties of the synthesized diamonds were analyzed. The results revealed that the Ni content in the catalyst affects the crystallinity of diamond crystals and the nitrogen crystallinity. The photoluminescence spectroscopy also showed that the diamond synthesized by using Fe-containing catalyst has specific NV-color center structure.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ling-Feng Mao
Summary: This study proposes an LSTM model to predict the work function of adsorbed metal atoms on graphene, which can quickly screen surface structures with target work function, saving computing and time costs, and improving device performance.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Runzhou Xu, Yinshui Liu, Qian Cheng, Zhenyao Wang, Kai Ma, Peiling Ke, Yipan Deng
Summary: The wear resistance of 17-4PH stainless steel was significantly improved by depositing multi-layered Cr/CrC/DLC coating at wide temperature range. The coating exhibited excellent lubrication and protective properties, and the wear mechanism changed with increasing temperature. The tribochemical reaction during the wear process played a crucial role in the graphitization transformation and friction properties of the coating.
DIAMOND AND RELATED MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Xilong Guo, Jiaxin Song, Shanling Wang, Li Lei, Omololu Odunmbaku, Ayoub Taallah, Yi He, Aiqun Gu, Filippo S. Boi
Summary: The recent observations of superconductive-ordering in carbon-based systems consisting of rhombohedral stacking-faults, trilayer graphene (ABC-stacks) or dislocation-rich interfaces (pyrolytic graphite) have attracted significant attention. In this study, an unusual nucleation of rhombohedral stacking-faults in low-dimensional systems comprising of multiwall carbon nanotube (CNT) buckypapers was reported. The presence of sulfur doping resulted in a broad-band at the Raman shift from 1800 to 2000 cm(-1), indicating contributions arising from disorder-rich regions with rhombohedral stacking-order (ABC-stacks). These observations were further supported by X-ray diffraction and Rietveld refinements.
DIAMOND AND RELATED MATERIALS
(2024)
