Related references
Note: Only part of the references are listed.
Article
Chemistry, Multidisciplinary
Mariarosa Cavallo et al.
Summary: As nanocrystal-based optoelectronics advances, there is a need for advanced techniques to reveal the electronic structure of nanocrystals, especially under device-relevant conditions. Previous efforts have mainly focused on optical spectroscopy and electrochemistry, which require an absolute energy reference. In this study, we explored the use of photoemission microscopy as a strategy for investigating nanocrystal-based devices in real-time. The method was found to be applicable to different materials and device geometries, providing direct access to important information such as metal-semiconductor interface band bending and gate effect propagation distance.
Review
Chemistry, Multidisciplinary
Dusan Mrdenovic et al.
Summary: Two-dimensional (2D) molecular materials have attracted great attention due to their unique properties and potential applications. However, sensitive analytical tools are needed to understand the structure-property relationship of these materials at the nanoscale. Tip-enhanced Raman spectroscopy (TERS) has emerged as a powerful technique for nanoscale chemical analysis by combining scanning probe microscopy and surface-enhanced Raman spectroscopy. In this review, the application of TERS for nanoscale chemical analysis of 2D molecular materials is discussed, and the progress in structural and chemical characterization is demonstrated with examples.
Article
Chemistry, Physical
S. Kazim et al.
Summary: We investigated the challenging CrCl3 surface using photon energy dependent photoemission (PE). By studying the core and valence electrons of cleaved single crystals in either ultra-high vacuum (UHV) or air, we confirmed the atomic composition with respect to the expected bulk atomic structure. The presence of a stable, but only partially ordered Cl-O-Cr surface was revealed by a common spectroscopic denominator. Through analysis of multiplet components, we quantified the electron charge transfer and the reduced crystal field due to the established polarization field. The methodology used in this study can have a significant impact on determining the structure of ordered sub-oxide phases in mono or bi-layer Cr trihalides.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Wadha Alfalasi et al.
Summary: The aim of this study is to search/design transition-metal TM doped transition-metal dichalcogenide TMD monolayers that can exhibit half-metallicity. The investigation showed positive results on (Mn, Fe, and Ni)-doped MoS2 MLs and (V, Mn, Fe, and Co)-doped MoSe2 in smaller sample sizes of 4 x 4, 5 x 5, and 6 x 6 primitive cells. The disappearance of half metallicity in larger samples can be attributed to the existence of ferromagnetic-coupling interactions and a drastic change in magnetization.
Review
Chemistry, Multidisciplinary
Kui Zhou et al.
Summary: This review provides an overview of recent advances in the synthesis of 2D metal oxides and their electronic applications. It discusses the tunable physical properties of 2D metal oxides related to structure, crystallinity, defects, and thickness. It also introduces advanced synthesis methods and various roles of 2D metal oxides in applications such as transistors, photodetectors, and solar cells.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Danil W. Boukhvalov et al.
Summary: In this study, the physicochemical properties of III-VI and IV-VI metal chalcogenides in both bulk and nanosheets forms were investigated. Their potential applications in electrocatalysis, photocatalysis, and gas sensing were explored using density function theory and surface-science experiments. GaSe, InSe, and GeSe were identified as promising low-cost catalysts due to their stability in water and resistance against CO poisoning. Both bulk and exfoliated III-VI and IV-VI metal chalcogenides exhibited oxidation, resulting in the formation of an oxide skin. This self-assembled heterostructure enhanced the electrocatalytic activity of the materials. Additionally, the modified band gap due to oxidation enabled the activation of photocatalytic processes with different wavelengths. The self-assembled metal-oxide/metal-chalcogenide heterostructure also allowed for gas sensing of NO2, NH3, and CO at elevated temperatures. Overall, III-VI and IV-VI metal chalcogenides show great potential in electrochemistry, photocatalysis, and chemical sensing due to their low cost and superior application capabilities.
ISRAEL JOURNAL OF CHEMISTRY
(2022)
Review
Chemistry, Analytical
Svitlana Nahirniak et al.
Summary: This paper summarizes the recent developments in promising 2D MXene-related materials and provides an outlook for further research on gas sensor applications. It summarizes the current synthesis routes and highlights the main properties of MXene compounds. The research on safe and non-hazardous synthesis approaches for MXene production as well as MXene heterostructures with other 2D materials has been considered.
Review
Chemistry, Physical
Gianluca D'Olimpio et al.
Summary: Tin diselenide (SnSe2) is a versatile layered semiconductor with broad application capabilities in the fields of energy storage, photocatalysis, and photodetection. The formation of a SnO2/SnSe2 heterostructure allows for effective adsorption and sensing of noxious gases, as well as fast large-area imaging for millimeter waves.
Article
Chemistry, Analytical
Ivan S. Maksymov et al.
Summary: This article reviews the recent developments in the field of magneto-electronic hydrogen sensors, focusing on Ferromagnetic Resonance (FMR)-based devices. These sensors have the ability to detect hydrogen gas in a wide range of concentrations with a fast response time. The article discusses the physical foundations, advantages, and disadvantages of magneto-electronic hydrogen sensors, and their applications in the safety of hydrogen-powered cars, hydrogen fuelling stations, and hydrogen concentration meters, including those operating inside fuel cells.
Review
Chemistry, Multidisciplinary
Harneet Kaur et al.
Summary: Researchers have been using liquid-phase exfoliation (LPE) to produce 2D nanosheets from layered crystals for nearly 15 years. However, recent studies have shown that nonlayered materials can also be exfoliated using LPE. This unexpected discovery has raised questions about our understanding of exfoliation. The structure, properties, and applications potential of nanoplatelets produced by LPE of nonlayered materials are examined in this review.
ADVANCED MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Sonam Rani et al.
Summary: TMDs have garnered attention for their unique electronic properties, making them promising candidates for advanced electronic and optoelectronic devices. Over 40 TMDs capable of being cleaved into 2D mono-layers have been reported, with potential applications in heterostructures to study correlated phenomena.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Hiroki Ago et al.
Summary: The past decades of materials science discoveries have laid the foundation for our present society. The recent discovery of graphene and other 2D materials offers a novel approach to synthesizing materials and exploring new physics and chemistry.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Suriya Duangmanee et al.
Summary: In this study, a simple and facile growth method was used to fabricate vertically aligned ZnO thin films, which were then applied in methane gas sensors. The results showed a good correlation between the film structure and sensor response.
Article
Chemistry, Multidisciplinary
Federica Bondino et al.
Summary: The surface oxidation of GaTe can be utilized to improve its performance, benefiting applications such as electrocatalysis, photocatalysis, and gas sensing. The sub-stoichiometric gallium-oxide/gallium-telluride heterostructure shows potential in catalysis and sensing due to enhanced charge redistribution after GaTe oxidation.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Nanoscience & Nanotechnology
Kin Fai Mak et al.
Summary: This article elaborates on the recent developments and future opportunities and challenges in fundamental research on semiconductor moire materials, with a particular focus on transition metal dichalcogenides.
NATURE NANOTECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Aidan J. Campbell et al.
Summary: This study investigates the behavior of exciton-polarons in strongly correlated electronic states and reveals the rich potential of the MoSe2/WSe2 platform.
NPJ 2D MATERIALS AND APPLICATIONS
(2022)
Article
Chemistry, Physical
Reihaneh Zinouri et al.
Article
Optics
Dario Mastrippolito et al.
Summary: Vanadium oxides have attracted research interest due to their optoelectronic properties, but the intensity of their photoluminescence emission is not sufficient for real applications. In this study, we propose a facile method to fabricate nanoporous vanadium oxide flakes through the spontaneous degradation of layered van der Waals VI3 crystal. The resulting nanostructured vanadium oxide exhibits intense room-temperature photoluminescence in the red light visible range, with high stability.
JOURNAL OF LUMINESCENCE
(2022)
Article
Green & Sustainable Science & Technology
Gianluca D'Olimpio et al.
Summary: Liquid-phase exfoliation of layered materials is an ideal method for scalable synthesis of nanosheets. However, the toxicity of existing solvents limits their application. In this study, a new solvent called Rhodiasolv Iris is validated for efficient liquid-phase exfoliation of van der Waals materials, providing high yield of 2D material flakes with high aspect ratio. The use of Iris opens up new possibilities for the ecofriendly production and industrial usage of 2D materials. The values of surface tension, Hansen solubility parameter, and viscosity of Rhodiasolv Iris are also reported for the first time.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Materials Science, Multidisciplinary
Sunil Kumar et al.
Materials Today Communications
(2022)
Article
Materials Science, Multidisciplinary
Dario Mastrippolito et al.
Summary: In this study, the magnetic properties of two-dimensional CrCl3 systems were investigated using density functional theory and Monte Carlo simulations. It was found that the introduction of Cl vacancies leads to a linear increase in magnetic moment, strengthening the ferromagnetic state and increasing the Curie temperature. Additionally, the presence of oxygen impurities results in the formation of a stable ordered phase, with antiferromagnetic coupling between chromium and oxygen atoms, giving rise to a two-dimensional ferrimagnetic hexagonal lattice system with a high magnetic ordering temperature.
JOURNAL OF PHYSICS-MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Jiaqi Shao et al.
Summary: The optoelectronic properties of 2D transition metal dichalcogenide (TMD) thin layers are strongly influenced by nanoscale defects. Tip-enhanced nanoscopy, such as tip-enhanced Raman spectroscopy (TERS) and tip-enhanced photoluminescence (TEPL), has emerged as a powerful tool to characterize the localized phonon and exciton behaviors of TMDs and heterojunctions (HJs) at the nanoscale. This article summarizes the recent progress of TERS and TEPL in characterizing typical defects in TMDs, investigating local strain and its dynamic control of phonon and exciton behaviors, characterizing TMD HJs, and utilizing TERS and TEPL with optoelectronic sensitive electronic scanning probe microscopy (SPM) in TMD applications.
Article
Nanoscience & Nanotechnology
Xiaozong Hu et al.
Summary: This article provides a systematic review on the preparation methods and applications of 2D oxides in electronics and optoelectronics. It first summarizes and classifies 2D oxides according to their elements, then introduces common preparation methods, and finally discusses the current challenges and future development prospects.
Article
Automation & Control Systems
Shirong Huang et al.
Summary: This paper demonstrates an ultrasensitive, highly discriminative platform for the detection and identification of ammonia and phosphine at room temperature using a graphene nanosensor. The graphene is exfoliated and functionalized with copper phthalocyanine derivate, and combined with efficient machine learning techniques, achieving excellent gas identification performance.
ADVANCED INTELLIGENT SYSTEMS
(2022)
Review
Chemistry, Analytical
Qingting Li et al.
Summary: MXene, a versatile two-dimensional material, has gained popularity in various fields due to its rich surface functional groups. Continuous research on preparation methods and applications has shown that MXene has great potential in the field of gas sensors, especially for detecting NH3 and VOC gases effectively.
Review
Engineering, Electrical & Electronic
Partha Bhattacharyya et al.
Summary: Tungsten disulfide (WS2) is a promising beyond graphene and beyond MoS2 layered material with exquisite properties, showing ultrahigh sensitivity in gas sensors at room temperature. Different device architectures have significant impacts on sensing performance indices, and researchers need to address challenges such as slow recovery, vulnerability to humidity, and oxidation to enhance commercial viability.
IEEE SENSORS JOURNAL
(2021)
Article
Multidisciplinary Sciences
P. Winkler et al.
Summary: Scanning photoelectron microscopy (SPEM) and photoemission electron microscopy (PEEM) techniques were used to study the high-Miller-index polycrystalline Rh surface structures, revealing the anisotropy of surface oxidation and its effect on catalytic hydrogen oxidation. The locally-resolved structure-sensitive surface oxide formation and comparison of reaction rates showed that Rh surface oxides exhibit high transient activity in hydrogen oxidation.
NATURE COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Cyrine Ernandes et al.
Summary: In transition metal dichalcogenide semiconductors, the transition from indirect to direct band gap occurs when the thickness drops to one monolayer, with different alloy compositions of WS2(1-x)Se2x significantly affecting this trend. The highest micro-PL intensity is found in bilayer WS2(1-x)Se2x (x = 0.8), with only a 2-fold decrease in its maximum value when transitioning from mono-layer to bi-layer. The high PL intensity in WS2(1-x)Se2x allows for the development of spectrally tunable light-emitting devices.
NPJ 2D MATERIALS AND APPLICATIONS
(2021)
Article
Biochemical Research Methods
V Nagarajan et al.
Summary: 2D materials, specifically arsenene sheets, are utilized as chemical and biosensors, with twisted bilayer arsenene sheets used to adsorb toluene and M-xylene vapours. The surface adsorption of these vapours modifies the electronic properties of TB-AsNS, facilitating molecule adsorption and desorption, and functioning as a sensing medium towards M-xylene and toluene.
JOURNAL OF MOLECULAR GRAPHICS & MODELLING
(2021)
Review
Materials Science, Ceramics
Chenyang Wang et al.
Summary: Graphene is considered a promising gas sensing material due to its high specific surface area and good conductivity. Recent studies have shown that graphene-based gas sensors doped with metals, polymers, and metal oxides exhibit good sensitivity, selectivity, and repeatability. Possible improvement methods and common problems characteristic of graphene-based gas sensors are discussed in this review.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Analytical
Liwei Liu et al.
Summary: A new sensing principle based on the change of surface work function induced by various impacts has been proposed and demonstrated. Gas sensing devices using van der Waals stacked 2D atomic crystals have been fabricated to detect NH3 and NO2 gases selectively. The devices show superior sensing performances in terms of sensitivity, power dissipation, response and recovery time.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Review
Chemistry, Multidisciplinary
Guenther Rupprechter
Summary: Operando characterization of catalysts is essential for identifying the relevant structure, composition, and adsorbed species, often achieved through techniques such as X-ray absorption spectroscopy and infrared spectroscopy. Combining experimental results with density functional theory allows for thorough interpretation. Understanding restructuring, surface composition alterations, and metal/oxide interface effects on catalytic performance is crucial for rational design and improvement.
Article
Chemistry, Multidisciplinary
Cyrine Ernandes et al.
Summary: Researchers investigated the band structure of WS2/graphene heterobilayer for various twist angles and found that strain quantitatively affects electronic features of WS2 monolayers, including the spin-orbit coupling strength. They demonstrated that the WS2 spin-orbit splitting can be tuned by strain, showing potential for controlling the band dispersion of van der Waals materials.
Review
Physics, Condensed Matter
Huaping Wang et al.
Summary: Gas sensor technology is widely utilized in various fields and continuous efforts are made to improve selectivity, sensitivity, and power consumption. Research has focused on the sensing layer, with emerging materials like nanocomposites and two-dimensional materials gaining interest. This roadmap aims to discuss the current status, progress, and challenges in gas sensing materials for future applications.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Review
Materials Science, Multidisciplinary
Adam J. Watson et al.
Summary: Two-dimensional materials provide opportunities for exploring fundamental science and applications at atomic thickness limits. The family of 2D semiconductors, particularly the group-VI transition metal dichalcogenides (TMDs), have attracted attention for their potential in high on-off ratio transistors and optoelectronic devices. Methods for transferring 2D films, especially those grown by chemical vapor deposition (CVD), are crucial for further investigation and improvement of device performance.
Review
Physics, Applied
Xue Jiang et al.
Summary: This review summarizes the recent progress on 2D magnets, focusing on magnetic exchange interaction, databases, and modification strategies. It presents various types of 2D magnetic materials and their interaction mechanisms.
APPLIED PHYSICS REVIEWS
(2021)
Review
Materials Science, Multidisciplinary
Wen-Jin Yin et al.
Summary: Low-dimensional Janus transition metal chalcogenides (TMDs) have attracted increasing attention due to their peculiar properties, such as tunable electronic band gaps and coexistence of various effects. Experimental and theoretical studies have shown that these properties originate from the breaking of mirror asymmetry in the Janus TMD structure. Despite substantial research, there is currently a lack of comprehensive overview of the theoretical and computational advances in this field.
MATERIALS ADVANCES
(2021)
Article
Chemistry, Analytical
Srinivasulu Kanaparthi et al.
Summary: A method was presented to quickly measure the concentration of CH4 at room temperature in just 30 seconds by analyzing the sensor's response at different fixed time intervals after gas exposure and mapping them to gas concentration for rapid measurement. This approach can be used in various applications where fast quantification of gas is essential.
ACS MEASUREMENT SCIENCE AU
(2021)
Review
Chemistry, Physical
Aditya Sharma et al.
Summary: This review provides insights into the comprehensive understanding of gas sensor mechanisms, including the physicochemical properties of sensing materials and their interaction with analyte gas molecules. It discusses the proposed models for chemiresistive gas sensing mechanisms, the use of in situ and operando spectroscopic techniques to gain fundamental working principles, and the recent developments in spectroscopic techniques to understand electronic structure and surface chemistry associated with gas molecules adsorption. The combination of spectroscopic and electrical characterization methods from in situ and operando studies offers key insights for the design of superior gas sensor devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Dario Mastrippolito et al.
Summary: Research on mechanically exfoliated CrCl3 flakes reveals that they spontaneously oxidize upon air exposure, forming an ordered oxidized structure on the surface and chromium oxide at the edges, with thermal stability up to 200 degrees C. The electronic structures of pure monolayer CrCl3 are insulating, while oxidized and defective phases show spin-polarized states and modifications in the band structures.
NANOSCALE ADVANCES
(2021)
Review
Energy & Fuels
Xiaohua Li et al.
Summary: This review article focuses on the synthesis methods of MXenes, advanced assembly technologies of MXene films, and recent progress in the applications of MXene films in fields such as electrochemical energy storage, membrane separation, and electromagnetic shielding.
TRANSACTIONS OF TIANJIN UNIVERSITY
(2021)
Article
Nanoscience & Nanotechnology
Ingvild J. T. Jensen et al.
Summary: In this study, the effect of charge transfer on the doping levels in MoS2 upon exposure to NOx gas was directly observed using scanning photoelectron microscopy (SPEM) on a monolayer MoS2 transistor. The results showed a downward shift in the Fermi level position, indicating that NOx gas made the MoS2 channel less n-type.
ACS APPLIED NANO MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Pratik Shinde et al.
Summary: Gas sensors work by translating gas adsorption effects on active materials into detectable signals, with magnetic gas sensors showing promise in addressing issues with chemical selectivity and sensitivity to humidity and high temperatures. However, challenges remain in modifying the magnetic properties of materials when exposed to gas molecules.
NANOSCALE ADVANCES
(2021)
Review
Chemistry, Multidisciplinary
Mauro Och et al.
Summary: Van der Waals atomically thin magnetic materials have been discovered recently and have potential for spin-based device properties, data storage, and communication devices. To understand magnetism in two dimensions, synthesis of 2D materials with precise thickness control over large areas is necessary. Ongoing research focuses on synthesis methods for these materials, challenges related to 2D magnets, and potential advancements in scalable production.
Review
Materials Science, Multidisciplinary
David J. Buckley et al.
Article
Multidisciplinary Sciences
See Wee Chee et al.
NATURE COMMUNICATIONS
(2020)
Article
Nanoscience & Nanotechnology
S. Kazim et al.
Article
Nanoscience & Nanotechnology
Valentina Paolucci et al.
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Multidisciplinary
Youngjun Kim et al.
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Deobrat Singh et al.
Article
Chemistry, Multidisciplinary
Dario Mastrippolito et al.
Review
Chemistry, Physical
Lei Zhang et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Nanoscience & Nanotechnology
Qingyun Wu et al.
Article
Chemistry, Analytical
Xin Geng et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2019)
Article
Chemistry, Physical
Francisco Hidalgo et al.
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Review
Chemistry, Analytical
Shaobin Feng et al.
Article
Chemistry, Analytical
Engin Ciftyuerek et al.
Review
Chemistry, Analytical
Ann-Kathrin Elger et al.
Article
Chemistry, Physical
Cui Jin et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Review
Electrochemistry
Eunji Lee et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2019)
Review
Materials Science, Multidisciplinary
Atanu Bag et al.
JOURNAL OF MATERIALS CHEMISTRY C
(2019)
Article
Chemistry, Physical
Ivan Brihuega et al.
JOURNAL OF PHYSICAL CHEMISTRY B
(2018)
Review
Chemistry, Multidisciplinary
Daniel S. Schulman et al.
CHEMICAL SOCIETY REVIEWS
(2018)
Review
Chemistry, Physical
Chris Arble et al.
SURFACE SCIENCE REPORTS
(2018)
Article
Chemistry, Physical
M. Vorokhta et al.
Article
Chemistry, Multidisciplinary
Taeyeong Yun et al.
ADVANCED FUNCTIONAL MATERIALS
(2018)
Review
Chemistry, Analytical
Maurizio Donarelli et al.
Review
Chemistry, Multidisciplinary
Eunji Lee et al.
Proceedings Paper
Materials Science, Multidisciplinary
A. A. Ramanathan
2ND INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS (ICAM-2017)
(2018)
Article
Multidisciplinary Sciences
Cheng Gong et al.
Article
Multidisciplinary Sciences
Bevin Huang et al.
Review
Physics, Applied
Shengxue Yang et al.
APPLIED PHYSICS REVIEWS
(2017)
Article
Physics, Applied
A. Gerber et al.
APPLIED PHYSICS LETTERS
(2017)
Article
Nanoscience & Nanotechnology
Byungjin Cho et al.
ACS APPLIED MATERIALS & INTERFACES
(2016)
Article
Chemistry, Analytical
M. Donarelli et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2015)
Article
Multidisciplinary Sciences
Byungjin Cho et al.
SCIENTIFIC REPORTS
(2015)
Article
Materials Science, Multidisciplinary
Maurizio Donarelli et al.
Article
Chemistry, Multidisciplinary
Dattatray J. Late et al.
Article
Chemistry, Physical
M. Donarelli et al.
CHEMICAL PHYSICS LETTERS
(2013)
Article
Chemistry, Physical
Stefano Prezioso et al.
JOURNAL OF PHYSICAL CHEMISTRY C
(2013)
Article
Multidisciplinary Sciences
A. K. Geim et al.
Article
Chemistry, Multidisciplinary
Hai Li et al.
Article
Chemistry, Physical
Santhosh Chenna et al.
Article
Chemistry, Physical
F. Schedin et al.
Article
Chemistry, Multidisciplinary
Simon Hadlington
Article
Multidisciplinary Sciences
PL Hansen et al.