Review
Materials Science, Multidisciplinary
Lixin Liu, Tianyou Zhai
Summary: The article reviews the latest research activities on wafer-scale vdWHs and their applications, outlining preparation strategies and applications to showcase their potential in electronic, optoelectronic, and flexible devices fields.
Article
Chemistry, Physical
Xi Wu, Ruiyu Zhong, Xudong Lv, Zhuofeng Hu, Dehua Xia, Chuanhao Li, Bo Song, Shengwei Liu
Summary: Researchers achieved efficient photocatalytic conversion of CO2 to CH4 through a strongly coupled van der Waals heterostructure. The optimized structure, decorated with precious metal Pt, demonstrated a CH4 selectivity of 90.2% and an evolution rate of 11.79 mu mol g-1 h-1 without the need for sacrificial agents. By enabling photoelectron transfer and the presence of separate but cooperative reduction centers, CO2 was converted to CH4. This study offers a new perspective for selective tandem photocatalytic CO2 conversion by designing hybrid photocatalysts with spatially separated but cooperative active centers.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Nanoscience & Nanotechnology
Jacopo Oswald, Davide Beretta, Michael Stiefel, Roman Furrer, Alessia Romio, Michel Daher Mansour, Dominique Vuillaume, Michel Calame
Summary: This work investigates the charge injection and transport across Au/OSC/Gr vertical heterostructures, where the PMMA-free graphene layer functions as the top electrode. The research shows that the charge transport is limited by thermionic emission at high bias and by space charge at low bias.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Multidisciplinary
Xiangdong Guo, Wei Lyu, Tinghan Chen, Yang Luo, Chenchen Wu, Bei Yang, Zhipei Sun, F. Javier Garcia de Abajo, Xiaoxia Yang, Qing Dai
Summary: 2D monolayers can be vertically stacked in van der Waals heterostructures to support a wide range of confined polaritons. This offers advantages in terms of controlling the constituent layers, stacking sequence, and twist angles. These heterostructures have extended the performance and functions of polaritons, and potential applications include nanophotonic integrated circuits.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Yuchuan Pan, Xiaochi Liu, Junqiang Yang, Won Jong Yoo, Jian Sun
Summary: Two-dimensional transition-metal dichalcogenide (TMDC) based semiconducting van der Waals (vdW) heterostructures have unique and tunable properties, and controlling carrier type and band alignment is crucial for desired performances. In this study, carrier type and band alignment in a vertical MoTe2/MoS2 heterojunction are controlled via thickness engineering and surface charge transfer doping, leading to the realization of multifunctional diodes that are universal and applicable to emerging nanoelectronics based on 2D materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Y. Galvao Gobato, C. Serati de Brito, A. Chaves, M. A. Prosnikov, T. Wozniak, Shi Guo, Ingrid D. Barcelos, M. V. Milosevic, F. Withers, P. C. M. Christianen
Summary: We investigated the valley Zeeman splitting of excitonic peaks in high-quality hBN/WS2/MoSe2/hBN heterostructures under perpendicular magnetic fields. The lower-energy peak exhibits a smaller g-factor compared to other vdW heterostructures. Evidence suggests that this discernible difference is due to excitonic confinement in the potential landscape created by the moire pattern in heterobilayers.
Article
Nanoscience & Nanotechnology
Jinbo Bian, Zhiping Xu
Summary: In this work, a novel vertical strain engineering approach is proposed to modify the band structures and electronic coupling of 2D materials in heterostructures. This has significant implications for improving electronic transport and energy conversion efficiency in nanoelectronics.
Article
Chemistry, Multidisciplinary
Tan Zhang, Chunqi Zheng, Zhi Ning Chen, Cheng-Wei Qiu
Summary: Negative reflection and refraction can be achieved in biaxial vdW materials by manipulating the interface and crystal direction, allowing for high tunability. This discovery has potential applications in polaritonics and on-chip integrated circuits.
Article
Chemistry, Multidisciplinary
Yue Liu, Chade Lv, Jingxue Sun, Xin Zhou, Yansong Zhou, Gang Chen
Summary: In this study, a 2D/2D g-C3N4/SnS2 photocatalyst with vdW heterojunction was developed for high-efficiency hydrogen production under visible light illumination. The presence of vdW heterojunction was found to enhance the photocatalytic activity by optimizing the behavior of photogenerated carriers and promoting interaction between reactants and catalysts. The heterojunction also facilitated efficient interfacial charge migration and separation, as well as reduction in surface hydrogen adsorption-desorption.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Aneesh Bapat, Saurabh Dixit, Yashika Gupta, Tony Low, Anshuman Kumar
Summary: The recent discovery of natural biaxial hyperbolicity in van der Waals crystals has opened up new possibilities for mid-IR nanophotonics. This study investigates heterostructures of graphene and alpha-MoO3 for actively tunable phonon polariton modes. The hybridization of graphene plasmon polaritons with hyperbolic phonon polaritons is observed, and the system shows a broad operational bandwidth.
Review
Chemistry, Multidisciplinary
Hui-Lei Hou, Cosimo Anichini, Paolo Samori, Alejandro Criado, Maurizio Prato
Summary: In the past 15 years, 2D materials have revolutionized materials science and become powerful components for high-performance chemical sensors. By forming van der Waals heterostructures (VDWHs), the individual drawbacks of 2D materials can be overcome, leading to superior sensitivities, selectivity, and stability. This review discusses the latest developments in chemical sensors based on VDWHs of 2D materials, including sensing mechanisms and future directions with potential impact in environmental sciences and biomedical applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zongqi Bai, Yang Xiao, Qing Luo, Miaomiao Li, Gang Peng, Zhihong Zhu, Fang Luo, Mengjian Zhu, Shiqiao Qin, Kostya Novoselov
Summary: The emergence of two-dimensional materials has led to important applications in electronic and optoelectronic devices. However, there are limitations such as low ON/OFF ratio and Schottky barrier formation. In this study, highly tunable field-effect tunneling transistors based on vertical graphene-WS2-graphene heterostructures were demonstrated, overcoming these limitations and achieving low off-state current, high ON/OFF ratio, and controllable carrier transport polarity.
Article
Chemistry, Multidisciplinary
Muhammad A. K. Purbayanto, Madhurya Chandel, Magdalena Birowska, Andreas Rosenkranz, Agnieszka M. Jastrzebska
Summary: This article discusses the fundamental basis and recent findings in vertical vdW heterostructures composed of MXenes as a primary component and other 2D materials as secondary components. MXenes, with their rich surface chemistry and intriguing optical properties, offer a unique platform for optoelectronics applications. Coupling MXenes with other 2D materials in vdW heterostructures can provide new opportunities for exploring novel physical phenomena in quantum-confined nanostructures and devices.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Jie Jiang, Delong Duan, Jun Ma, Yawen Jiang, Ran Long, Chao Gao, Yujie Xiong
Summary: This study demonstrates that incorporating reduced graphene oxide with graphitic carbon nitride to form van der Waals heterostructures significantly enhances the efficiency of photocatalytic CO2 reduction and allows for control over the ratio of CO/H2 in the produced syngas. Adjusting the content of graphene provides tunability in the catalytic system.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Yixue Xu, Xiaoli Jin, Teng Ge, Haiquan Xie, Ruixue Sun, Fengyun Su, Xin Li, Liqun Ye
Summary: The study successfully constructed a vdW heterojunction between layered Bi3O4Cl and 2D g-C3N4 for photocatalytic CO2 reduction, exhibiting improved performance with the optimized Bi3O4Cl/20%g-C3N4 showing the highest CO2 conversion efficiency. This work not only provides a reference for vdW heterojunction systems based on Bi-based and g-C3N4 semiconductors, but also contributes to engineering vdW heterojunctions for satisfactory solar energy conversion performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Jieqi Zhang, Chao Zhang, Kai Ren, Xiuling Lin, Zhen Cui
Summary: In this investigation, the effects of organic molecule adsorption on the electronic and magnetic properties of CGT monolayer were systematically studied using first-principles calculations. The results show that the adsorption of these molecules can significantly tune the electronic and magnetic properties of CGT, and the Curie temperature can be enhanced by TTF adsorption.
Article
Nanoscience & Nanotechnology
Kai Ren, Huabing Shu, Wenyi Huo, Zhen Cui, Yujing Xu
Summary: A new two-dimensional carbon allotrope named biphenylene has been synthesized, and its electronic properties and doping effects have been studied. The results show that biphenylene exhibits metallic nature with n-type Dirac cone, and magnetism can be induced by Fe, Cl, Cr, and Mn doping. Furthermore, atomic doping has been found to significantly improve the hydrogen evolution reaction (HER) performance of biphenylene, with Fe doping showing great potential in HER catalysis.
Article
Materials Science, Multidisciplinary
Nana Zhao, Lehao Wang, Rongfu Xu, Teli Yao, Zhen Cui, Shujuan Li, Yunhua Xu, Heguang Liu
Summary: A micro/nano NbC reinforcement layer was prepared on a bearing steel surface using GCr15 bearing steel and high purity niobium plate as raw materials. The reinforcement layer exhibited dense and gradient layers, with NbC, Fe3C, alpha-Fe, and Cr7C3 as the main phases. The layer showed high volume fraction of NbC ceramic particles and strong interfacial bonding strength.
Article
Chemistry, Multidisciplinary
Lin Zhang, Zhen Cui
Summary: By using first-principles calculations, the properties of non-metal atoms adsorbed into germanium carbide (NM-GeC) systems were investigated. The results reveal that the adsorption positions and physical properties vary with different non-metal atoms. The study demonstrates the potential applications of semiconducting NM-GeC in spintronics, optoelectronics, and photovoltaic cells.
Article
Crystallography
Kai Ren, Zhengyang Zhu, Ke Wang, Wenyi Huo, Zhen Cui
Summary: In this study, the electronic characteristics and properties of a MoTe2/PtS2 van der Waals heterostructure (vdWH) were investigated through density functional calculations. The study found that the stacking structures of the heterostructure have a significant impact on the band structure, and proposed suitable stacking configurations for both photocatalytic and light-emitting device applications. The band alignment and potential drop were also studied to prevent charge recombination, and the heterostructure showed excellent optical absorption capacity in the visible wavelength range. The research provides a theoretical guide for designing and controlling 2D heterostructures for photocatalytic and photovoltaic devices.
Article
Engineering, Electrical & Electronic
Zhen Cui, Kunqi Yang, Kai Ren, Shuang Zhang, Lu Wang
Summary: The magnetic and electronic properties of metal atoms adsorbed on the MoSi2N4 monolayer were studied using density functional theory. The results showed that the behavior of the MoSi2N4 monolayer varied depending on the type of metal adsorbed. Charge transfer between the metal atoms and MoSi2N4 was observed. The adsorbed metal atoms on the MoSi2N4 system have the potential to be used in spintronic and vacuum electron emission nanodevices.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Physics, Applied
Shaoqiang Wang, Kunqi Yang, Zhen Cui
Summary: The optoelectronic and magnetic behaviors of GeC monolayer after transition metals (TMs) adsorption have been discussed using density functional theory. The results show that different TM-GeC systems exhibit different magnetic and semiconducting properties. The charge transfer between GeC and TM is also observed. The lowered work function of GeC after TM adsorption indicates the potential use of TM-GeC system in spintronic and nanoelectronic devices.
MODERN PHYSICS LETTERS B
(2022)
Article
Nanoscience & Nanotechnology
Fangping Wang, Enling Li, Zhen Cui, Pengfei Shen, Hongyuan Zhao, Yang Shen, Deming Ma
Summary: By using density functional theory, we found that the F-GaN-H in the buckled 2D GaN monolayers has the strongest polarity and the most stable structure. Based on its polarization direction and intensity, self-doping heterostructures can be constructed and the doping type and level can be effectively modulated. The resulting p-n junction in the graphene/GaN sandwich structure acts as a natural low-resistance contact.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Enling Li, Fangping Wang, Zhen Cui, Deming Ma, Yang Shen, Pengfei Shen, Hongyuan Zhao, Yuanhe Tang
Summary: In this paper, nonvolatile self-doped p-n junctions are formed in GaN-based heterostructures using density functional theory. High hole and electron carrier concentrations are achieved in TMDs/ML (BL) and (BL) ML/TMDs heterostructures. The results show that the band structures and carrier types of these heterostructures can be modulated by the self-doping induced by GaN polarization, providing a new doping strategy for 2D GaN materials.
Article
Materials Science, Multidisciplinary
Nana Zhao, Rui Shan, Zihan Wang, Teli Yao, Congcong Ren, Heguang Liu, Shujuan Li, Yunhua Xu, Zhen Cui
Summary: The hot-pressing diffusion method was used to fabricate a novel composite structure in this study. The NbC/Fe composite layer on the surface of HT300 was formed by keeping the temperature constant at 1000 degrees C and applying a pressure value of 40 MPa for different holding times. The microstructure, element distribution, microhardness, bonding property, and scratch deformation characteristics of the NbC/Fe composite layer were investigated. The results showed that the composite layer exhibited excellent bonding properties and good hardness.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Chemistry, Analytical
Yang Shen, Zhihao Yuan, Zhen Cui, Deming Ma, Pei Yuan, Kunqi Yang, Yanbo Dong, Fangping Wang, Enling Li
Summary: In this study, the adsorption of CO, NH3, NO, and NO2 gases on intrinsic and vacancy-deficient Graphite-like ZnO (g-ZnO) was systematically investigated using density functional theory (DFT). The results showed that the introduction of Zn vacancy (V-Zn) significantly increased the adsorption energy of NH3, NO, and NO2 on defective g-ZnO. Furthermore, vacancies also reduced the adsorption height of the gases on V-Zn/g-ZnO. These findings contribute to the enrichment of defect detection methods and the design of gas detection devices.
Article
Chemistry, Physical
Zhen Cui, Kunqi Yang, Yang Shen, Zhihao Yuan, Yanbo Dong, Pei Yuan, Enling Li
Summary: The magnetic and electronic behaviors of toxic gases (CO, NH3, NO, and NO2) adsorbed on intrinsic and defective WS2 were investigated using density functional theory. The adsorption energy of NO-VW/WS2 was lower than that of NO on intrinsic WS2, indicating the potential of VW/WS2 for NO capture. The band gap of defective WS2 was reduced by the adsorption of the toxic gases, and the type of band gap was changed by the introduction of a sulfur defect. Notably, the adsorption of NO2 (NO) transformed the band gap of intrinsic WS2 (VW/WS2) from direct to indirect, while the introduction of NO2 transformed the band gap of VS/WS2 from indirect to direct. Additionally, CO and NH3-VW/WS2 showed shorter recovery times compared to CO and NH3 on intrinsic WS2, making VW/WS2 an ideal reversible sensor for CO and NH3 detection. Overall, the adsorption of gas molecules and the presence of defects can modulate the magnetic and electronic properties of WS2, which is crucial for gas sensing and toxic gas detection.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Yanbo Dong, Enling Li, Zhen Cui, Yang Shen, Deming Ma, Fangping Wang, Zhihao Yuan, Kunqi Yang
Summary: The electronic structure, charge transfer, and photon scattering of buckled and planar few-layer 2D GaN have been investigated using first-principles calculations. The results show that buckled GaN with H passivation has a direct band gap, which decreases with increasing number of atomic layers. Planar GaN has an indirect band gap, which remains relatively stable as the number of atomic layers increases. Charge transfer occurs between adjacent layers in buckled structures, while it occurs within the layers in planar structures. The lattice vibration modes and Raman spectra of buckled and planar GaN are affected by the symmetry and interactions between atomic layers, with peak positions shifting with the number of atomic layers.
Article
Materials Science, Multidisciplinary
Nana Zhao, Teli Yao, Zihan Wang, Rui Shan, Congcong Ren, Heguang Liu, Shujuan Li, Yunhua Xu, Zhen Cui
Summary: The formation mechanism of an NbC-Fe composite layer on the surface of GCr15 bearing steel was investigated, considering the thermodynamics, dynamics, and crystal structure transformation processes involved in the in situ reaction. Computational thermodynamics revealed that at 1150°C-1200°C, the reaction allowed for the spontaneous formation and stabilization of NbC, Fe3C, Cr3C2, Cr7C3, and Cr23C6 phases in the Fe-C-Nb-CR system. Experimentally and computationally, a functional relationship between the growth thickness, time, and temperature of the NbC-Fe composite layer was obtained, with a calculated growth activation energy (Q) of 367.06 kJ mol(-1). The formation mechanism of NbC in the NbC-Fe layer involved the diffusion of C atoms from the bearing steel into the Nb plate, occupying the octahedral gap of the Nb unit cell to form NbC. C and Fe atoms from the pearlite also migrated and diffused towards the Nb plate to form the NbC-Fe composite layer.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Chemistry, Physical
Kunqi Yang, Zhen Cui, Enling Li, Yang Shen, Lin Zhang, Deming Ma, Zhihao Yuan, Yanbo Dong, Shuang Zhang
Summary: The electronic, magnetic, and optical absorption properties of WS2 systems with partial metal adsorption were calculated using the first-principles approach. The optimal adsorption sites for each metal on WS2 were found to vary. Pt, Mg, and Zn-WS2 systems were non-magnetic semiconductors, while Ag, Au, Cr, Fe, Mn, Mo, Nb, Ni, and Ti-WS2 systems exhibited magnetic semiconductor behavior. Ca, Li, and Na-WS2 systems showed magnetic metal properties. Ca and Nb-WS2 systems displayed a significant red-shift in the ultraviolet region, with the adsorption of Ca and Nb enhancing WS2 absorption in this region. The Nb-WS2 system showed a strong absorption peak at 448.3 nm with an intensity of 1.09×105 cm-1. Therefore, metal adsorbed WS2 systems have potential applications in the study of nano-spintronics and photovoltaic devices.
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.
