Article
Engineering, Environmental
Ruozhen Wu, Kangkai Yan, Jinyun Zhao, Zhenghan Cai, Shaoju Jian, Liqing Qiu
Summary: 2D/2D van der Waals heterostructure is an effective approach for improving 2D layered nanomaterials' functions due to high-quality heterointerfaces. However, the influence of heterointerface quantity and quality on gas-sensing performance has been overlooked.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jian Jiang, Ruiqing Cheng, Wenyong Feng, Lei Yin, Yao Wen, Yanrong Wang, Yuchen Cai, Yong Liu, Hao Wang, Baoxing Zhai, Chuansheng Liu, Jun He, Zhenxing Wang
Summary: Ultrathin cobalt single-crystalline nanosheets with a sub-millimeter scale were synthesized via van der Waals epitaxy for the first time. The thickness can be as low as approximate to 6 nm. Theoretical calculations revealed their intrinsic ferromagnetic nature and epitaxial mechanism, providing a valuable case for synthesizing 2D elementary metal crystals with pure phase and room-temperature ferromagnetism.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Hao Wang, Jianmei Chen, Yanping Lin, Xiaohan Wang, Jianmin Li, Yao Li, Lijun Gao, Labao Zhang, Dongliang Chao, Xu Xiao, Jong-Min Lee
Summary: This review critically examines the progress of non-vdW 2D electrocatalysts, with a special emphasis on electronic structure modulation and performance enhancement. Strategies such as heteroatom doping, vacancy engineering, pore creation, alloying, and heterostructure engineering are analyzed for tuning electronic structures to achieve higher electrocatalytic performance. A roadmap for the future development of non-vdW 2D electrocatalysts is provided from material, mechanism, and performance perspectives.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yong Wang, Chengxin Zeng, Yu Zhang, Ran Su, Dingyi Yang, Zhaokun Wang, Yizhang Wu, Hongzhe Pan, Weidong Zhu, Wen Hu, Hong Liu, Rusen Yang
Summary: This study reveals that strain promotes the separation of photocarriers in two-dimensional van der Waals heterostructures, leading to improved photocatalytic activity.
MATERIALS TODAY PHYSICS
(2022)
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)
Review
Chemistry, Multidisciplinary
Xiankun Zhang, Yanzhe Zhang, Huihui Yu, Hang Zhao, Zhihong Cao, Zheng Zhang, Yue Zhang
Summary: As silicon-based electronic devices face challenges of material performance decrease and interface quality degradation, ultrathin 2D materials are considered as potential candidates in future electronics due to their atomically flat surfaces and excellent immunity to short-channel effects. By freely stacking and forming high-quality heterostructure interfaces, all-2D electronics based on 2D van der Waals (vdW) interfaces can exhibit more comprehensive functionality and better performance. However, improving the compatibility of 2D material devices with silicon-based industrial technology remains a critical challenge.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Alessandro De Vita, Thao Thi Phuong Nguyen, Roberto Sant, Gian Marco Pierantozzi, Danila Amoroso, Chiara Bigi, Vincent Polewczyk, Giovanni Vinai, Loi T. Nguyen, Tai Kong, Jun Fujii, Ivana Vobornik, Nicholas B. Brookes, Giorgio Rossi, Robert J. Cava, Federico Mazzola, Kunihiko Yamauchi, Silvia Picozzi, Giancarlo Panaccione
Summary: This research investigates the ground state electronic properties of CrI3 and VI3 and reveals the stability of different electronic phases and the influence of dimensionality effects.
Article
Chemistry, Analytical
Seyedali Hosseini, Azam Iraji Zad, Seyed Mohammad Mahdavi, Ali Esfandiar
Summary: A tunable gain SnS2/InSe Van der Waals heterostructure photodetector was studied, utilizing the favorable properties of two-dimensional materials such as SnS2 and InSe. The device showed high photoresponsivity and detectivity, making it a potential candidate for commercial visible image sensors.
Article
Chemistry, Multidisciplinary
Tianle Zhang, Yujun Zhang, Mingyuan Huang, Bo Li, Yinghui Sun, Zhe Qu, Xidong Duan, Chengbao Jiang, Shengxue Yang
Summary: In this study, the exchange bias effect in Fe3GeTe2 (FGT)/CrOCl heterostructures is investigated through anomalous Hall effect (AHE) and reflective magnetic circular dichroism (RMCD) measurements. The exchange bias field (H-EB) is successfully tuned by changing the FGT/CrOCl thickness and the cooling field. A larger H-EB in RMCD measurements is observed, which is proposed to be related to the distribution of uncompensated spins at the interface.
Article
Chemistry, Multidisciplinary
Sunny Gupta, Boris I. Yakobson
Summary: Rashba spin-orbit coupling allows for electric control of spin states, showing potential for advancements beyond traditional charge-based computing. A general scheme or descriptor for identifying systems with large tunable spin states is still missing, but based on first-principles calculations, the difference in Born effective charge of atoms at interfaces can be used as a descriptor. Additionally, commonly used parameters like alpha(R) may not accurately gauge the strength of the effect in most 2D materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Kenan Zhang, Changchun Ding, Baojun Pan, Zhen Wu, Austin Marga, Lijie Zhang, Hao Zeng, Shaoming Huang
Summary: This study investigates the growth mechanisms of 2D van der Waals heterostructures using a custom-built system and identifies a new growth mode with different rate and morphology. A model is proposed to explain the differences in morphologies and growth rates of the two modes. The findings from a range of material combinations may benefit the synthesis of other 2D heterostructures with controlled properties for future device applications.
ADVANCED MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Iosif Tantis, Smita Talande, Vasileios Tzitzios, Georgia Basina, Vishal Shrivastav, Aristides Bakandritsos, Radek Zboril
Summary: This review focuses on recent advances in electrochemical energy storage (EES) technologies related to 2D crystals originating from non-layered 3D solids (non-van der Waals; nvdW) and their influence on the materials' features. The methods and challenges in top-down and bottom-up strategies towards nvdW 2D sheets and their applications in EES are discussed. Moreover, the opportunities and challenges of nvdW 2D systems in various applications are highlighted.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Vishakha Gupta, Rakshit Jain, Yafei Ren, Xiyue S. Zhang, Husain F. Alnaser, Amit Vashist, Vikram V. Deshpande, David A. Muller, Di Xiao, Taylor D. Sparks, Daniel C. Ralph
Summary: The advantages of mechanically stacked samples of van der Waals materials for controlling the surface state of a three-dimensional topological insulator are demonstrated. The interaction between the topological surface state and an adjacent magnet layer can be controlled, resulting in an observed anomalous Hall effect.
Review
Chemistry, Multidisciplinary
Xiantong Yu, Xin Wang, Feifan Zhou, Junle Qu, Jun Song
Summary: 2D van der Waals heterojunctions are a novel type of metamaterial that are flexible, adjustable, and easy to assemble. By combining different 2D materials and stacking methods, they can exhibit more abundant optical properties and have made significant progress in the field of nanophotonic devices.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Leihao Feng, Xi Zhang, Quan Zheng, Ya Nie, Gang Xiang
Summary: The structural and electronic properties of a two-dimensional SiAs2/GeAs2 van der Waals heterostructure and its applications have been investigated by first-principles calculations and Silvaco Atlas simulations. The stable heterostructure exhibits an indirect bandgap of 0.99 eV in type II band alignment, making it suitable for light detection and energy harvesting. By applying an appropriate electric field, it can exhibit a direct bandgap up to 0.66 eV. The results show that the band alignment of the heterostructure can be tuned between type II and type I for various applications.
Article
Chemistry, Multidisciplinary
Alaauldeen A. Duhduh, Chou-Yi Hsu, Mustafa Humam Sami, Anupam Yadav, Russul Thabit, Sagr Alamri, Abdelmajeed Adam Lagum, Ali A. Rajhi
Summary: Density functional theory (DFT) calculations were used to investigate the application of a Zn12O12 nanocage as an anode material in Na-ion batteries (NIBs). The pure nanocage showed low performance, but encapsulating a chloride led to a significant increase in voltage, surpassing carbon nanotubes and C24 fullerene.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Hiroyuki Ikemoto, Toshihiko Fujimori, Takafumi Miyanaga, Reo Kawaguchi, Koki Urita, Masao Tabuchi
Summary: This study investigated the structures of two Se chains confined inside single-walled carbon nanotubes (SWCNTs), revealing that the chains were linear and parallel. The covalent bond between Se and SWCNT was found to be stronger than that between Se and trigonal Se (t-Se). The interaction between chains was attributed to the overlap of electronic orbitals, and the disappearance of this overlap in the encapsulated Se chains enhanced the covalent bonds.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Suman Yadav, Atul Gour, Sadhna Singh
Summary: In this study, we investigated the electronic and thermoelectric properties of rare-earth half-Heusler XPtBi (X = Gd, Nd, Y) topological semimetals compounds using density functional theory. Our results indicate that the inclusion of spin orbit coupling has a significant impact on the electronic band structure and spin order, making it promising for spintronic applications. We found different topological states in these compounds and observed enhanced power factor in YPtBi with the inclusion of SOC.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Takahiro Ozawa, Hiroshi Nakanishi, Koichi Kato, Ryota Shimizu, Taro Hitosugi, Katsuyuki Fukutani
Summary: In this study, we elucidate the hopping mechanism of hydrogen at intermediate temperature using a combination of experimental data and theoretical calculations. We find that the transition from thermal hopping to quantum tunneling is attributed to resonant tunneling, which is achieved through the resonant tunneling of discrete vibrational states between the edge octahedral site and the tetrahedral site. We also demonstrate that the tunneling rate can be tuned by energy level matching.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ankita Nandi, Ritam Mehera, Moumita Mandal, Paramesh Chandra, Swapan K. Mandal, Naznin Ara Begum, Chandan K. Jana, Nilanjana Das
Summary: In this study, stable biogenic ZnO nanoparticles were successfully synthesized using a biosynthesis method, and their effects on oxidative stress parameters in Saccharomyces cerevisiae were investigated. The results demonstrate that high concentrations of ZnO nanoparticles may induce oxidative stress conditions, suggesting caution in their extensive use.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
P. S. Dighe, A. A. Bhoite, V. L. Patil, N. L. Tarwal, P. B. Sarawade
Summary: In this study, Ni-Co layered double hydroxide (LDH) nanocomposites with excellent electrochemical properties were prepared using hydrothermal technique. The as-obtained material exhibited high specific capacitance and remarkable energy density, showing great potential for supercapacitor applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Muhammad Danish, Misbah ul Islam, Farooq Ahmad, M. Nadeem Madni, M. Jahangeer
Summary: This study synthesized M-type hexaferrite and graphene oxide using sol-gel auto-combustion and modified Hummer process. The structure and morphology of the materials were characterized by XRD and SEM. The experimental results showed that coupling magnetic ferrite with graphene oxide can tune the electromagnetic properties of the materials, with potential applications in various fields.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Abrar U. Hassan, Yuchuan Li
Summary: This study presents a new design strategy of N-doped fused ring electron acceptors for organic dye Y123 in photovoltaic and optical devices. The evaluation of five novel dyes shows their positive contributions to charge transfer. Impressive photovoltaic performance is observed in one of the dyes, with high light harvesting efficiency and maximum power output.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ashvin Kanzariya, Shardul Vadalkar, Sourav Kanti Jana, L. K. Saini, Prafulla K. Jha
Summary: Graphene quantum dots (GQDs) with quantum confinement and size effects show great potential for sensing applications. This computational study investigates the adsorption performance of pristine and transition metal-doped coronene GQDs to hazardous gases. The results suggest that doping with chromium (Cr) or nickel (Ni) enhances the gas adsorption performance, with Cr-doped GQDs showing strong interaction with gas molecules and potential as a gas remover, and Ni-doped GQDs showing potential as a CNCl sensor.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Vladimir V. Poborchii, Victor A. Sachkov, Alexander A. Shklyaev, Alexander V. Fokin, Pavel I. Geshev
Summary: This study investigates the polarized optical absorption and Raman spectra of -5 nm diameter tellurium nanowires confined in chrysotile asbestos nanotubes. The results show a strong interaction between the nanowires and light polarized parallel to the nanowires, while a weaker interaction is observed for light polarized perpendicular to the nanowires. This has significant implications for photonic and photo-electric applications.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Stanislav Cichon, Frantisek Maca, Vaclav Drchal, Katerina Horakova, Irena Kratochvilova, Jan Lancok, Vladimir Chab, Patrik Cermak, Jiri Navratil, Cestmir Drasar
Summary: In this study, a reliable method for preparing high-quality single crystal substrates doped with Bi2Se3 was developed. The electronic properties and chemical states of atoms in the substitutional position and native defects in the topological insulator were analyzed using experimental and theoretical methods. The relationship between the position of the Dirac cone and valence band maximum was explored and discussed.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Ikkurthi Kanaka Durga, Dasha Kumar Kulurumotlakatla, Tholkappiyan Ramachandran, Yedluri Anil Kumar, D. Amaranatha Reddy, K. V. G. Raghavendra, Asma A. Alothman, Sunkara Srinivasa Rao
Summary: Nickel molybdate oxide and tungsten trioxide have potential as electrode materials for supercapacitors, but their poor conductivity and fast capacitance fading limit their performance. By building a hierarchical nanoflower structure, the electrochemical performance of the supercapacitor is enhanced.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Elnaz Saadinia, Mohammad Almasi Kashi, Amir H. Montazer
Summary: Fe-based nanowires containing nonmagnetic elements, fabricated using a pulse electrodeposition method in porous anodic alumina membranes, exhibit magnetic tunability. The magnetic properties of Fe100-xSnx NW arrays, with a diameter of about 35 nm, such as coercivity and squareness values, decrease with increasing Sn content. The structure of the FeSn NWs, dominated by Fe or FeSn alloy crystal phase, can be either single domain or pseudo-single domain states depending on the Sn content.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Xinkai Liu, Tingting Liu, Yuanliang Zhou, Jing Wen, Jinmei Dong, Chenggong Chang, Weixin Zheng
Summary: CuS-Mg/S-BC composites modified by one-pot sulfurization exhibited higher removal efficiency in adsorption and photocatalytic removal of dyes, thanks to the functional groups and vacant sites formed at the interface for enhanced adsorption and photon capture.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Multidisciplinary
Yixing Hao, Fang Zhu, Hao Cheng, Sridhar Komarneni, Jianfeng Ma
Summary: A magnetic porous composite catalyst synthesized from CoFe2O4 and CuS showed high degradation efficiency for organic pollutants under visible light conditions, using non-radical degradation as the main pathway.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)