Article
Nanoscience & Nanotechnology
Alexander K. Fedotov, Uladzislaw E. Gumiennik, Vladimir A. Skuratov, Dmitry V. Yurasov, Julia A. Fedotova, Alexey V. Novikov, Alexander S. Fedotov, Pavel Yu. Apel
Summary: In this study, the influence of Swift Heavy Ions (SHI) irradiation on electron transport in a silicon structure doped with antimony was investigated. It was found that the irradiation induced the competition between defect formation and annealing, and the low temperature carrier transport was mainly carried out by the delta-layer. Additionally, a transition in magnetoresistance was observed as the temperature decreased.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Nanoscience & Nanotechnology
N. Ishikawa, Y. Fujimura, K. Kondo, G. L. Szabo, R. A. Wilhelm, H. Ogawa, T. Taguchi
Summary: In this study, the formation of irradiation-induced hillock chains in a doped SrTiO3 crystal was examined using atomic force microscopy and scanning electron microscopy. It was found that the formation of multiple hillocks is accompanied by the presence of continuous ion tracks. Cross-sectional transmission electron microscopy revealed that the size of ion tracks varies with depth, with larger tracks in the near-surface region and smaller tracks in the deeper region. The absence of recrystallization in the near-surface region was attributed to material transport towards the surface.
Article
Nuclear Science & Technology
R. A. Rymzhanov, A. Akzhunussov, A. E. Volkov, A. D. Ibrayeva, V. A. Skuratov
Summary: The effect of ion irradiation on thermal transport in alumina was studied using molecular dynamics simulation. It was found that increasing ion flux leads to a decrease in thermal conductivity of alumina. The experimental and simulated results are in reasonable agreement, and it was observed that the highly damaged core of ion tracks has a significant impact on heat transport.
NUCLEAR MATERIALS AND ENERGY
(2022)
Article
Chemistry, Physical
M. Karlusic, R. A. Rymzhanov, J. H. O'Connell, L. Brockers, K. Tomic Luketic, Z. Siketic, S. Fazinic, P. Dubcek, M. Jaksic, G. Provatas, N. Medvedev, A. E. Volkov, M. Schleberger
Summary: The experimental study showed that Al2O3 and MgO surfaces exhibit distinct nanometric modifications when irradiated with 23 MeV I beam at a grazing incidence angle compared to normal incidence. Numerical simulations revealed that the presence of the surface inhibits recrystallization process, preventing transient tracks from recovery and forming observable nanopatterns. The differences in viscosities in molten states between Al2O3 and MgO explain the variation in nanostructures created on the surfaces.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
R. Assylbayev, A. Akilbekov, G. Baubekova, K. Chernenko, M. Zdorovetz, E. Feldbach, E. Shablonin, A. Lushchik
Summary: This study investigates low-temperature cathodo- and photoluminescence in MgO single crystals, specifically the F and F+ centers as well as bivacancies. The results show that the cathodoluminescence bands associated with the F, F+ and P centers strengthen with Xe-irradiation fluence up to 10(13) ions/cm(2), but experience drastic emission attenuation at higher fluences. The limitations of using luminescence methods for detecting structural point defects induced by heavy irradiation are also discussed.
Article
Nuclear Science & Technology
Li-Qing Zhang, Chong-Hong Zhang, Chen-Chun Hao, Guo-Dong Hu, Zheng-Dong Feng, Yong-Jian Tang, Wen-Kun Zhu, Jian-Yang Li, Qing Huang
Summary: SiC fibers were irradiated with Sn-112(27.3+) ions and the effects on mechanical properties and surface characteristics were studied. Carbon concentration on the fiber surface increased while silicon concentration decreased. The average tensile strength and elastic modulus of the fibers decreased with increasing ion fluence.
NUCLEAR SCIENCE AND TECHNIQUES
(2022)
Article
Chemistry, Physical
M. Karlusic, M. Micetic, M. Kresic, M. Jaksic, B. Santic, I. Bogdanovic-Radovic, S. Bernstorff, H. Lebius, B. Ban-d'Etat, K. Zuzek Rozman, J. H. O'Connell, U. Hagemann, M. Schleberger
Summary: The study demonstrates that by tuning ion energy and fluence, different surface nanopattern morphologies like individual chains of nanohillocks, nanostripes, or nanoscaled ripples can be selected. Chemical etching can be used to create a negative replica of the nanopattern, while thermal annealing in vacuum can remove the surface track, offering new ways for achieving control over nanoscale surface modifications using swift heavy ion beams.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Azat Abdullaev, Ainur Koshkinbayeva, Vinay Chauhan, Zhangatay Nurekeyev, Jacques O'Connell, Arno Janse van Vuuren, Vladimir Skuratov, Marat Khafizov, Zhandos N. Utegulov
Summary: Thermal transport in swift heavy ion (SHI) irradiated insulating single crystalline oxide materials was investigated. The study revealed that different materials were affected by different forms of damage, resulting in a decrease in thermal conductivity. It was also found that materials with lower penetrating thermal waves were more likely to form surface hillocks. An analytical model and depth profiling were used to determine the depth-dependent damage. YAG material had the highest level of damage, while MgO showed the strongest dependence. This research provides important insights into the thermal transport degradation and recovery of oxide ceramics for next-generation nuclear reactor applications.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Nuclear Science & Technology
Shao-Jun Zhang, Yuan-Yuan Liu, Sha-Sha Lv, Jian-Ping Cheng, Bin Liao, Pan Pang, Zhi Deng, Li He
Summary: Surface metallization of PTFE is necessary to improve the interface bonding strength with metal copper for optimized electronic substrates at extremely low temperatures. The introduction of SiO2/TiO2 particles enhances the electrical and mechanical properties of low-background PTFE.
NUCLEAR SCIENCE AND TECHNIQUES
(2022)
Article
Crystallography
Kristina Tomic Luketic, Juraj Hanzek, Catalina G. Mihalcea, Pavo Dubcek, Andreja Gajovic, Zdravko Siketic, Milko Jaksic, Corneliu Ghica, Marko Karlusic
Summary: This experimental study investigated the influence of ion beam charge state on damage production in nanomaterials. The findings showed a significant effect of ion charge state on damage production in monolayer graphene, but no evidence of this effect in bilayer and trilayer graphene, graphite, CaF2, and SiO2 nanocrystals irradiated by the same ion beam.
Article
Instruments & Instrumentation
Sergey V. Rogozhkin, Aleksei A. Bogachev, Alexander A. Nikitin, Alexander L. Vasiliev, Michael Yu. Presnyakov, Marilena Tomut, Christina Trautmann
Summary: The irradiation of oxide dispersion strengthened steels ODS Eurofer and ODS 13.5Cr-0.3Ti with Xe and Au ions at room temperature led to an increase in the fraction of small oxide inclusions and the formation of amorphous tracks in larger yttrium oxide inclusions.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2021)
Article
Chemistry, Physical
V. C. Bharath Sabarish, A. Durairajan, M. P. F. Graca, M. A. Valente, J. Gajendiran, B. N. Rajasekhar, Asim Kumar Das, Rajeev Bhatt, Indranil Bhaumik, A. K. Karnal, S. Gokulraj, G. Ramesh Kumar
Summary: The study showed that Nickel Swift Heavy Ion irradiation significantly affects the properties of ferroelectric TGS single crystals, leading to an increase in dielectric constant, improvement in piezoelectric coefficient, and decrease in coercive field.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Romeo Juge, Kaushik Bairagi, Kumari Gaurav Rana, Jan Vogel, Mamour Sall, Dominique Mailly, Van Tuong Pham, Qiang Zhang, Naveen Sisodia, Michael Foerster, Lucia Aballe, Mohamed Belmeguenai, Yves Roussigne, Stephane Auffret, Liliana D. Buda-Prejbeanu, Gilles Gaudin, Dafine Ravelosona, Olivier Boulle
Summary: Magnetic skyrmions can be successfully created and guided in racetrack devices using focused He+-ion-irradiation, leading to stable and isolated skyrmions. By tuning the magnetic properties, the maximum skyrmion velocity can be enhanced, suppressing the skyrmion Hall effect and opening up new possibilities for practical applications.
Article
Chemistry, Physical
Yajie Liu, Zhixin Tai, Ido Rozen, Zhipeng Yu, Ziyu Lu, Alec P. LaGrow, Oleksandr Bondarchuk, Qingqing Chen, Gil Goobes, Yi Li, Lifeng Liu
Summary: By regulating the Li+ and Na+ flux using a glass fiber separator impregnated with polytetrafluoroethylene nanospheres, dendrites can be effectively mitigated in lithium and sodium metal batteries, leading to homogeneous deposition of Li and Na during charging. The introduction of negatively charged PTFE-NSs into the separator enhances the local electric field near the anode, boosting the transfer of cations. Li//Li and Na//Na symmetric cells utilizing a PTFE-GF separator exhibit outstanding cycle stability, while Li//LiFePO4 and Na//Na3V2(PO4)(2)F-3 full cells show remarkably improved capacity retention when cycled, in the presence of a PTFE-GF separator.
ADVANCED ENERGY MATERIALS
(2023)
Article
Physics, Multidisciplinary
Ning Liu, Li-Min Zhang, Xue-Ting Liu, Shuo Zhang, Tie-Shan Wang, Hong-Xia Guo
Summary: The microstructural responses of In0.32Ga0.68N and In0.9Ga0.1N films to 2.25 GeV Xe ion irradiation were investigated. It was found that the In-rich In0.9Ga0.1N is more susceptible to irradiation than the Ga-rich In0.32Ga0.68N. Point defects and small defect clusters were introduced after Xe ion irradiation.
Article
Materials Science, Multidisciplinary
Samriti, Prateek, Manish Chandra Joshi, Raju Kumar Gupta, Jai Prakash
Summary: This work presents an alkali hydrothermal synthesis method for the fabrication of TiO2 nanorods (NRs) and Ta doped TiO2 NRs, which exhibit enhanced optical and charge transfer properties. The soaking treatment after synthesis plays a crucial role in the formation and performance enhancement of the nanorods. The results showed that the optimized soaking time in HCl solution led to the production of highly uniform and crystalline TiO2 NRs with a band gap of 2.95 eV. Similarly, Ta doped TiO2 NRs with a band gap of 2.58 eV were obtained. The SERS activity of both undoped and Ta doped TiO2 NRs was significantly enhanced compared to TiO2 nanopowder, due to the formation of surface/lattice defects and abundant energy levels.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Ratnesh Gupta, K. Sangeeth, M. Gupta, R. J. Choudhary, A. Sagdeo, F. Singh, Ajay Gupta
Summary: The FeCo/CoO bilayer shows exchange bias at 10K, with the value being enhanced by thermal annealing. X-ray diffraction confirms the phase formation in the CoO layer, and a correlation is observed between soft X-ray absorption and magnetic characteristics. Ion irradiation affects the exchange bias value, with higher ion fluence reducing the value due to defects in the film.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Physical
Md Akhlak Alam, Ayushi Trivedi, M. K. Tiwari, Devarani Devi, Sanjay Rai, Mukul Gupta, D. K. Avasthi
Summary: Gold ion implantation in silicon substrates is widely used in microelectronics, with research indicating significant effects on both the crystalline structure and surface of the silicon material.
APPLIED SURFACE SCIENCE
(2022)
Article
Environmental Sciences
Pratibha Sharma, Jai Prakash, Raj Kaushal
Summary: Green synthesis of silica nanoparticles (SiO2 NPs) is an environmentally friendly approach with excellent adsorption properties. These nanoparticles exhibit diverse physical and chemical characteristics, making them suitable for various applications in water pollutants removal and other fields. The use of natural resources in the synthesis process reduces costs and toxicity, while the manipulation of synthesis parameters allows for control over the morphology and properties of the nanoparticles.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Pratibha Sharma, Jai Prakash, Tapas Palai, Raj Kaushal
Summary: The present study reports the eco-friendly synthesis and surface modification of SiO2 nanoparticles as nano-adsorbents for the removal of Cr(VI) ions from aqueous solution. The functionalization of SiO2 nanoparticles significantly enhances their adsorption capacity for Cr(VI), with A-SiO2 nanoparticles exhibiting the highest adsorption capacity and excellent recyclability.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Anuradha Verma, Sakshi Saxena, Neeraj Kumar Biswas, Anupam Srivastav, Udai Bhan Singh, Saif A. Khan, Rohit Shrivastav, Devesh Kumar Avasthi, Sahab Dass
Summary: In this study, sputter-deposited Au nanoparticles on ITO-coated glass substrate were fabricated and characterized. The results showed that a 5 nm thickness Au thin film exhibited the strongest surface plasmon resonance effect under certain annealing parameters.
Review
Chemistry, Physical
Jai Prakash, Suresh Babu Naidu Krishna, Promod Kumar, Vinod Kumar, Kalyan S. Ghosh, Hendrik C. Swart, Stefano Bellucci, Junghyun Cho
Summary: Photocatalysis, a process that occurs in the presence of light radiation, has the potential to control environmental pollution and improve public health. In recent years, research has focused on developing efficient photocatalytic nanomaterials that can disinfect surfaces, air, and water indoors, particularly in response to the COVID-19 pandemic.
Article
Physics, Condensed Matter
H. S. Lokesha, K. R. Nagabhushana, Fouran Singh, N. R. Thejavathi, Sonia Hatsue Tatumi, A. R. E. Prinsloo, C. J. Sheppard
Summary: This study investigates the impact of 120 MeV swift Au9+ ion irradiation on the structures of monoclinic, tetragonal, and cubic ZrO2 using X-ray diffraction (XRD) and Raman spectroscopy. The results show a partial phase transition from monoclinic to tetragonal ZrO2, with a transition rate of approximately 74%. Interestingly, a phase transition from cubic to tetragonal ZrO2 was observed under 120 MeV Au9+ ion irradiation. The study discusses the effects of transient temperature, defects, and strain induced by swift heavy ions. This research provides insights into the structural stability of different phases of ZrO2 under swift heavy ion irradiation, which is valuable for selecting potential applications in nuclear reactors, oxygen sensors, accelerators, and radiation shielding.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Engineering, Electrical & Electronic
Shikha Kaushik, Rahul Singhal, Ramcharan Meena, Amit K. Chawla, Devesh Kumar Avasthi
Summary: This study demonstrates that the performance of RRAM devices in both ZnO and Zn-rich ZnO is significantly improved by ion irradiation, which is achieved by improving the thickness, stoichiometry, and crystallinity of zinc oxide thin films.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Physics, Multidisciplinary
Harpreet Singh, Palwinder Singh, Kamaljit Singh, Fouran Singh, Abhinav Pratap Singh, Akshay Kumar, Anup Thakur
Summary: This study investigates the effect of swift heavy silver (Ag9+) ion-irradiation on the structural, optical, and morphological properties of SbSe thin films. The films undergo a transition from amorphous to crystalline upon annealing and from crystalline to amorphous upon irradiation. This phase transition results in significant changes in morphology and optical properties, making it suitable for various optoelectronic applications.
Article
Chemistry, Analytical
Baoyu Huang, Xinwei Tong, Xiangpeng Zhang, Qiuxia Feng, Marina N. Rumyantseva, Jai Prakash, Xiaogan Li
Summary: MXene/NiO-composite-based formaldehyde (HCHO) sensing materials were synthesized by an in situ precipitation method. The heterostructures between MXene and NiO nanoparticles were confirmed through TEM, XRD, and XPS analyses. The chemiresistive-type sensors based on MXene/NiO-P2 displayed enhanced sensing performance to HCHO gas at room temperature. The MXene/NiO-P2 sensor exhibited good selectivity, long-term stability, and a low detection limit for HCHO gas.
Article
Environmental Sciences
Samriti, Marina Rumyantseva, Shuhui Sun, Andrej Kuznetsov, Jai Prakash
Summary: This paper discusses the research on the detection and removal of air pollutants using novel multifunctional nanomaterials. These emerging nano materials have high stability, sensitivity down to parts per-billion level, and excellent removal efficiency for air pollutants. The focus is on their specific strategies and recent highlights in environmental and health monitoring. The challenges and future prospects are also discussed.
CURRENT OPINION IN ENVIRONMENTAL SCIENCE & HEALTH
(2023)
Review
Chemistry, Physical
Jai Prakash, Pragati Kumar, Nupur Saxena, Zonghua Pu, Zhangsen Chen, Ankit Tyagi, Gaixia Zhang, Shuhui Sun
Summary: Semiconductor photocatalyst nanomaterials, especially CdS-based 3D nano/micro-architectures, have shown promising potential in solving energy and environmental problems by utilizing solar light. These nanostructures possess high surface/volume ratio and exhibit significant improvement in photocatalytic activities, making them suitable for various energy and environment applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Engineering, Electrical & Electronic
Jai Prakash, Junghyun Cho, Yogendra Kumar Mishra
Summary: Amid the global pandemic of the coronavirus, there is an urgent need for the development of new technologies, medical innovations, and innovative materials to control SARS-CoV-2 infection. Titanium dioxide (TiO2) photocatalysts have shown promising potential as effective disinfectants against SARS-CoV-2 and other viruses and bacteria, with their excellent antibacterial and antiviral activities.
MICRO AND NANO ENGINEERING
(2022)
Review
Chemistry, Physical
Jai Prakash, Samriti, Dharshana N. Wijesundera, Indrajith Rajapaksa, Wei-Kan Chu
Summary: Ion beam nanoengineering of surfaces is a promising way to tailor surface properties for various technological applications. One unique application is synthesizing embedded nanostructures near the surface of materials to control dopant concentration and space localization without introducing contamination. It has emerged as a technique for surface modification to enhance Raman scattering sensitivity, particularly for molecular detection in environmental and biomedical research.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Ping Zhang, Xiujie Yue, Yeran Gao, Zhenyong Lin, Shunxiang Wang, Songting Zhang
Summary: This paper investigates the strengthening mechanism of highspeed cutting and solid particle-entrained waterjet peening (HSC-WJP) composite reinforcement on 7075-T6 aluminum alloy. The research results show that composite reinforcement can improve surface quality, reduce surface pits and roughness, and decrease the size of precipitation-free zone (PFZ) at grain boundaries.
Article
Materials Science, Multidisciplinary
Sangyoon Lee, Hwi Yoon, Sanghun Lee, Seung-min Chung, Hyungjun Kim
Summary: The wettability of metal oxides, particularly HfO2 thin films deposited via atomic layer deposition, and its correlation with surface free energy have been studied. It was found that surface oxygen species significantly affect the intrinsic hydrophilicity of HfO2 thin films, and the crystalline orientations also evolve with film thickness.
Article
Materials Science, Multidisciplinary
Changdong Yin, Yiwen Wu, Zhou Xu, Dongdong Ye, Jun Yao, Jianjun Chen, Qiang Liu, Xin Ge, Meiling Ding
Summary: This study proposed a new strategy to indirectly estimate the hydrogen diffusivity of metallic materials under tensile stress by combining the electrochemical hydrogen permeation test (EHPT), the hydrogen diffusion descriptive equation based on Fick's law, and hydrogen pre-charged tensile test. The results showed that the hydrogen permeation curve obtained was highly approximate to the theoretical trend. The hydrogen embrittlement (HE) susceptibility of the specimens increased with increasing stress.
Article
Materials Science, Multidisciplinary
Huan Luo, Wei-yi Wang, Xin Yu, Xian-jun Lei, Lang Liu, Guo-zheng Zha, Wen-long Jiang, Bin Yang, Bao-qiang Xu
Summary: Separating selenium and tellurium is a general challenge in material and non-ferrous metallurgical industries. This paper proposes a novel method that achieved efficient separation of selenium and tellurium using gas-liquid equilibrium phase diagram and valence regulation-vacuum gasification technique.
Article
Materials Science, Multidisciplinary
Fan Zhang, Rong Xin Wang, Aiqin Tian, Fangzhi Li, Jianping Liu, Hui Yang
Summary: Deposition of Pd/Pt/Au three-layer films on p-GaN under high and ultra-high vacuum conditions was studied to investigate the electrical contact properties. Linear I-V curves were observed in samples deposited under ultra-high vacuum conditions, while nonlinear I-V characteristics were obtained in samples deposited under high vacuum conditions. The study also found that the samples deposited under high vacuum conditions had higher amounts of oxygen and Pd oxide. The oxide layer had an additional influence on the electrical characteristics of the Pd/Pt/Au/p-GaN contact.
Article
Materials Science, Multidisciplinary
Hongli Liu, Chengzhe Liu, Ying Sui, Zhongxian Liu, Tiangang Zhang, Zhiqiang Zhang, Shuang Sun, Jianwei Jia
Summary: This study utilized polysiloxane and hafnium carbide to produce Si-N-C-O-Hf hybridized ceramic fibers, and obtained ceramic fibers with hemispherical particles on the surface through electrostatic spinning and pyrolysis. The ceramic fibers exhibited excellent thermal stability, oxidation resistance, and high temperature insulation.
Article
Materials Science, Multidisciplinary
M. Abaker, Nazar Elamin Ahmed, A. Saad, H. F. Khalil, E. M. M. Ibrahim, A. M. Adam
Summary: This paper systematically studied the internal structure and thermoelectric properties of In1-xGaxSb alloys prepared by melting synthesis at 1123 K. The results showed that doping with Ga in the In sites led to a significant increase in the Seebeck coefficient and power factor, while reducing the thermal conductivity. The maximum dimensionless figure of merit was observed at 403 K.
Article
Materials Science, Multidisciplinary
Fucheng Yu, Jinlong Ren, Jielin Zhang, Haiyang Chen, Xin Tian, Chenchen Feng, Cuixia Li, Jianbin Zhang, Xianxi Tang, Xiaogang Hou
Summary: An environmentally friendly ZnO@BiVO4 composite photocatalyst was prepared using in-situ self-assembly and solvothermal methods, demonstrating good photocatalytic performance. The mass ratio of BiVO4 and NCZ was found to influence the photocatalytic performance of the composite.
Article
Materials Science, Multidisciplinary
Yaoming Shao, Pingping Zheng, Tianhao Dong, Lianghuan Wei, Haifei Wu, Jianxiao Si
Summary: In this paper, Mg3Bi2 films were prepared on glass substrate using magnetron sputtering, and the phase composition and thermoelectric properties of the films were investigated with different atomic ratios. The films displayed a metastable cubic phase and high conductivity when the atomic ratio exceeded stoichiometry.
Article
Materials Science, Multidisciplinary
I. V. Uimanov, D. L. Shmelev, S. A. Barengolts
Summary: A two-dimensional axisymmetric model has been developed to study the prebreakdown processes in a cathode microprotrusion under an external electric field. The simulation results show that electrohydrodynamic instability leads to the formation of a nanometer-sized conical protrusion on the microprotrusion tip, significantly accelerating the heating process.
Article
Materials Science, Multidisciplinary
Weilun Zhang, Di Yang, Feng Gong, Yongjun Chen, Tian Chen, Zhiwen Xie, Sirui Yang
Summary: A novel Pt doping method was designed to improve the thermal stability of CrWN coating. The doping of Pt atoms effectively blocks the coherent growth of the grains and creates a significant mixing effect, resulting in a smooth surface with uniform element distribution.
Article
Materials Science, Multidisciplinary
Xiaoye Wang, Xiaoguang Yang, Wenna Du, Tao Yang
Summary: In this study, the effects of multiple growth parameters on self-catalyzed growth of InAs/GaSb axial heterostructured nanowires on Si substrate by MOCVD were investigated. It was found that the growth temperature and switching time have significant influences on the nanowire growth.
Article
Materials Science, Multidisciplinary
Weizhong Cui, Yan Zhao, Can Cui, Xing Liu, Beili Pang, Jianguang Feng, Hongzhou Dong, Liyan Yu, Lifeng Dong
Summary: This study introduces Co2+ cations into Cs2AgBiBr6 film to improve its quality, grain size, and conductivity, resulting in enhanced solar cell efficiency.
Article
Materials Science, Multidisciplinary
Jian Wang, Ke Yang, Xianming Cheng, Yalin Lu, Ganghui Wu, Yang Zhang, Yun Kan
Summary: The corrosion behavior and microstructural evolution of Sc microalloyed Al-3.2Cu-1.5Li alloys were investigated in detail. The microstructural results showed higher levels of dislocations density in the Sc microalloyed sample, which resulted in significantly refined grains and T1 precipitates. Microalloying with Sc changed the corrosion mode of the alloy and localized corrosion was found to occur preferentially at the subgrain within unrecrystallized grains with high grain stored energy.
Article
Materials Science, Multidisciplinary
Weifeng Liu, Na Liu, Kaiqiang Song, Meiqin Zeng, Zhongchen Lu
Summary: Monoclinic WO3 prepared through plasma milling exhibits higher photocatalytic activity due to its higher surface area, increased oxygen vacancies, and defects.
