Article
Engineering, Electrical & Electronic
Yong Zhang, Fei Yang, Hao Liu, Yan Zhang, Zhili Hu, Johan Liu
Summary: Graphene displayed excellent electrothermal performance as heating elements on glass substrates, with the adhesion between graphene and substrate being crucial, especially at high temperatures. Simulations helped rationalize the experimental results, indicating that graphene-based films are promising materials for the next generation of transparent heating elements.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Applied
Min Seon Kim, Yejin Ahn, Bong-Gi Kim
Summary: Layer-by-layer (LbL) coating improves the mechanical robustness of soft surfaces. This study successfully enhanced scratch resistance by alternating deposition of a polymer and montmorillonite (MMT) on hard-coating surfaces. The MMT-coated surface exhibited superior scratch resistance with over 95% optical transparency. Dynamic-scratch evaluations showed that the MMT-coated surfaces have improved performance compared to other films.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Chemistry, Multidisciplinary
Irina V. Antonova, Konstantin A. Kokh, Nadezhda A. Nebogatikova, Evgenii A. Suprun, Vladimir A. Golyashov, Oleg E. Tereshchenko
Summary: This study investigates the growth of Bi2Se3 films on printed graphene using vapor deposition. By using 2D-printed graphene and the capillary effect conditions, it is possible to form continuous films with a thickness of 8 nm or more and larger crystallites. The properties of the films grown on printed graphene are similar to those grown on CVD graphene. Additionally, heterostructures with high carrier mobility and transparent electrodes can be formed if the printed graphene contains residual organic additives.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Physical
Brahim Marfoua, Jisang Hong
Summary: Despite efforts to find room temperature ferromagnetic 2D materials, only a few have been synthesized. A recent study confirmed room temperature ferromagnetism in a multilayer structure. However, calculations showed an antiferromagnetic ground state in the monolayer and bilayer systems. Further investigation revealed that hydrogen-induced ferromagnetism was possible. The resulting systems showed a ferromagnetic ground state and optically transparent behavior.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Pingping Zhuang, Jing Liu, Junjie Huang, Chao Dou, Weiwei Cai, Weiyi Lin
Summary: This study investigates the charge distribution between layers in van der Waals stacked crystals using carbon isotope-labeled few-layer graphene. The electrical transfer characteristics of graphene field-effect transistors are used to calibrate the correspondence between Fermi level and G-phonon frequency. The results reveal that the charge concentration in both top and bottom layers of few-layer graphene is close and does not follow the exponential decay law. Additionally, each additional layer of graphene reduces the charge exchange at the graphene/dopant interface. These findings have important implications for electronic applications based on two-dimensional materials and provide a framework for further exploring the properties of other two-dimensional systems.
Article
Chemistry, Physical
Kengo Manabe, Yasuo Norikane
Summary: This study demonstrated that polymer multilayer graphene composite coatings exhibit simultaneous antifogging and self-healing properties. The fabricated layer-by-layer coatings exhibited zwitter-wettability and self-healing performances comparable to those of previously reported systems. This study provides a new zwitterwetting strategy that combines self-healing and antifogging properties.
SURFACES AND INTERFACES
(2023)
Review
Nanoscience & Nanotechnology
Francesco Lavini, Martin Rejhon, Elisa Riedo
Summary: This review examines the phase transformations in 2D materials, focusing on the transition from graphene to 2D diamond. It explores the effects of structural and environmental factors on the transformations and discusses the applications of these phase transitions in 2D materials.
NATURE REVIEWS MATERIALS
(2022)
Article
Chemistry, Physical
Jing Chen, Shuai Chen, Bingjing Chen, Yan Cao, Jiafu Chen, Yalin Cheng, Zhimin Chen, Jianwei Fu
Summary: A novel catalysis strategy was reported to construct nanometer-thick microporous carbon/few-layer graphene heterostructure, which showed high special capacitance and excellent rate performance. The mechanism behind these phenomena was studied.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
A. Mohapatra, S. Das, K. Majumdar, M. S. Ramachandra Rao, Manu Jaiswal
Summary: Wrinkles significantly influence the thermal transport in vertical assemblies of few-layer graphene crystallites. While the presence of wrinkles enhances the thermal conductivity locally, it also leads to a significant decrease in the total interface conductance compared to unwrinkled regions. This study highlights the strong impact of wrinkles on the thermal properties of layered 2D materials.
NANOSCALE ADVANCES
(2021)
Article
Engineering, Environmental
Kun Lu, Qingyuan Hu, Li Zhai, Zhiyu Zhu, Yunsong Xu, Zhaohui Ding, Hang Zeng, Shipeng Dong, Shixiang Gao, Liang Mao
Summary: This study reveals the biological fate of graphene in algae and its potential biological effects, which is important for assessing the environmental risks of graphene.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Zhijuan Zhao, Tianyu Hou, Nannan Wu, Shuping Jiao, Ke Zhou, Jun Yin, Ji Won Suk, Xu Cui, Mingfei Zhang, Shaopeng Li, Yan Qu, Weiguang Xie, Xi-Bo Li, Chuanxi Zhao, Yong Fu, Rong-Dun Hong, Shengshi Guo, Dingqu Lin, Weiwei Cai, Wenjie Mai, Zhengtang Luo, Yongtao Tian, Yun Lai, Yuanyue Liu, Luigi Colombo, Yufeng Hao
Summary: The study reveals that using atomically thin, polycrystalline few-layer graphene (FLG) as a protective coating film can effectively prevent metal corrosion in atmospheric environments by exploiting the misalignment of grain boundaries and energy barrier to corrosive molecules diffusion.
Article
Biophysics
Dipti Chauhan, Yogesh Kumar, Ramesh Chandra, Suveen Kumar
Summary: In this study, 2D few-layered transparent hydrogen substituted graphdiyne (HsGDY) nanosheets were synthesized and their electrochemical characteristics for cancer biomarker detection were explored for the first time. The HsGDY nano-interface platform showed a wider linear detection range, high sensitivity, and unprecedented ultralow level detection ability for ANXA2 cancer biomarker.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Yancheng Meng, Baowen Li, Luxian Li, Jianqiang Zhang
Summary: The buckling behavior of graphene on soft films has been extensively studied. This experiment systematically investigates the buckling behavior of monolayer, three-layer, and four-layer graphene on soft films under large compression. The cross-sections of buckling patterns are provided using FIB technology. Furthermore, the modulus of few-layer graphene is calculated, and it is found that the modulus is independent of the number of graphene layers when the number is less than four.
Article
Optics
Feng Wu, Mingyuan Chen, Zhanxu Chen, Chengping Yin
Summary: The study found that introducing few-layer graphene into one-dimensional photonic crystals can significantly broaden the bandwidth of omnidirectional photonic band gaps, with a stronger effect as the number of graphene layers increases. Few-layer graphene acts like an ultrathin metal layer within the frequency range of the OPBG, allowing for dynamic tuning of the bandwidth by the gate voltage of the graphene. This provides a practical way to promote various applications based on tunable terahertz OPBGs.
OPTICS COMMUNICATIONS
(2021)
Article
Thermodynamics
C. D. Jaimes-Paez, E. Morallon, D. Cazorla-Amors
Summary: Graphene-based materials were synthesized by electrochemical exfoliation method. Pt nanoparticles were incorporated into the graphene-based material to achieve high dispersion and distribution. The catalyst showed excellent activity, stability, and selectivity in oxygen reduction reaction and hydrogen evolution reaction, outperforming commercial Pt/C catalyst.
Article
Chemistry, Physical
Mingu Kang, Shiang Fang, Jonggyu Yoo, Brenden R. Ortiz, Yuzki M. Oey, Jonghyeok Choi, Sae Hee Ryu, Jimin Kim, Chris Jozwiak, Aaron Bostwick, Eli Rotenberg, Efthimios Kaxiras, Joseph G. Checkelsky, Stephen D. Wilson, Jae-Hoon Park, Riccardo Comin
Summary: The authors use high-resolution angle-resolved photoemission spectroscopy to determine the microscopic structure of three-dimensional charge order in AV(3)Sb(5) (A = K, Rb, Cs) and its interplay with superconductivity. The observed difference in charge order structure between CsV3Sb5 and the other compounds potentially explains the double-dome superconductivity in CsV3(Sb,Sn)(5) and the suppression of T-c in KV3Sb5 and RbV3Sb5. These findings provide fresh insights into the phase diagram of AV(3)Sb(5).
Article
Computer Science, Interdisciplinary Applications
Fernanda Farias, Alan A. Souza, Reynam C. Pestana
Summary: As we move towards larger 3D datasets, it is necessary for inversions based on the wave equation, such as LSRTM, to converge rapidly to reduce computational burden and provide accurate amplitudes. In this study, we explore stochastic optimization methods for LSRTM beyond the state-of-the-art minibatch SGD, and apply a second-order stochastic method known as the SFO algorithm. Our experiments using synthetic data demonstrate that the SFO algorithm outperforms minibatch SGD in terms of results and convergence speed.
COMPUTERS & GEOSCIENCES
(2023)
Article
Acoustics
L. Foglia, R. Mincigrucci, A. A. Maznev, G. Baldi, F. Capotondi, F. Caporaletti, R. Comin, D. De Angelis, R. A. Duncan, D. Fainozzi, G. Kurdi, J. Li, A. Martinelli, C. Masciovecchio, G. Monaco, A. Milloch, K. A. Nelson, C. A. Occhialini, M. Pancaldi, E. Pedersoli, J. S. Pelli-Cresi, A. Simoncig, F. Travasso, B. Wehinger, M. Zanatta, F. Bencivenga
Summary: Collective lattice dynamics play a critical role in determining the properties of condensed matter. The extreme ultraviolet transient grating (EUV TG) approach allows access to a previously inaccessible length-scale, providing valuable insights into the thermoelastic properties of matter. This technique has significant implications for fundamental physics and future technology development.
Article
Materials Science, Ceramics
Jessica Pauline Nunes Marinho, Natalia Paz Neme, Matheus Josue de Souza Matos, Ronaldo Junio Campos Batista, Waldemar Augusto de Almeida Macedo, Pedro Lana Gastelois, Dawidson Assis Gomes, Michele Angela Rodrigues, Marcelo Fernandes Cipreste, Edesia Martins Barros de Sousa
Summary: Osteosarcoma, the most common type of bone cancer, has low survival rates for metastatic and chemotherapy-resistant cases. Nanotechnology and hydroxyapatite nanoparticles have the potential to develop targeted and effective therapies using natural substances like curcumin to treat osteosarcoma. The study evaluated the stability and performance of hydroxyapatite nanorods as a carrier for curcumin.
CERAMICS INTERNATIONAL
(2023)
Article
Spectroscopy
Ian R. Amaral, Daniel M. Vasconcelos, Antonio G. Souza Filho, Victor V. Oliveira, Rafael S. Alencar, Alan S. de Menezes, Raphael L. M. Lobato, Luciano A. Montoro
Summary: Technological advances have led to a growing demand for energy, which has become a bottleneck for the development of complex equipment and processes. Therefore, there is a constant need for more efficient materials and techniques to improve the efficiency of energy storage devices.
JOURNAL OF RAMAN SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Connor A. Occhialini, Joshua J. Sanchez, Qian Song, Gilberto Fabbris, Yongseong Choi, Jong-Woo Kim, Philip J. Ryan, Riccardo Comin
Summary: The origin of nematicity in FeSe is studied using X-ray linear dichroism and X-ray diffraction measurements. It is found that spontaneous orbital polarization serves as the primary order parameter of the nematic phase, providing strong evidence for an orbital mechanism driving nematicity.
Article
Nanoscience & Nanotechnology
Luiz G. Pimenta Martins, David A. Ruiz-Tijerina, Connor A. Occhialini, Ji-Hoon Park, Qian Song, Ang-Yu Lu, Pedro Venezuela, Luiz G. Cancado, Mario S. C. Mazzoni, Matheus J. S. Matos, Jing Kong, Riccardo Comin
Summary: Hydrostatic pressure is used to enhance the moire potential in a MoS2/WSe2 heterostructure, and the effects are quantified via moire-activated Raman modes. This method provides valuable insights into the physics of two-dimensional heterostructures.
NATURE NANOTECHNOLOGY
(2023)
Review
Physics, Applied
Luiz G. Pimenta G. Martins, Riccardo Comin, Matheus J. S. Matos, Mario S. C. Mazzoni, Bernardo R. A. Neves, Matthew Yankowitz
Summary: Two-dimensional (2D) materials and their moire superlattices have unique properties due to their reduced dimensionality and tunability, making them a new frontier in quantum matter research. However, high-pressure studies of these materials have been underexplored, offering exciting opportunities for discovering new phenomena. This review discusses ongoing efforts to study atomically thin van der Waals (vdW) materials and heterostructures using high-pressure techniques and addresses challenges such as substrate influence and pressure modeling.
APPLIED PHYSICS REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Andreij C. Gadelha, Joyce C. C. Santos, Cassiano Rabelo, Thiago L. Vasconcelos, Rafael S. Alencar, Vitor Monken, Hudson L. S. Miranda, Luiz A. Cury, Ygor M. Jaques, Raphael M. Tromer, Douglas S. Galvao, Luiz G. Cancado, Bernardo R. A. Neves, Ado Jorio
Summary: Hybrid organic/inorganic Van der Waals heterostructures have great potential applications in nanotechnology and industry. The interfacial effects in these heterostructures can modulate the final properties and open up possibilities for innovative device design and operation. This study investigates a hybrid organic/inorganic heterostructure of coronene and few-layers MoS2, and reveals localized enhancement of MoS2 optical properties at the edges and defects due to the assembling of coronene molecules in MoS2. The results provide insights for engineering molecules in two-dimensional nanomaterials and controlling optical phenomena.
Article
Nanoscience & Nanotechnology
Douglas S. Ribeiro, Joyce C. C. Santos, Sebastian Grieger, Joao Luiz E. Campos, Lucas R. P. Machado, Flavia G. Pacheco, Thales F. D. Fernandes, Catarina C. Haase, Diego L. Silva, Marcos Guterres, Eder M. Soares, Rozana M. Martins, Jessica P. Del'Boccio, Rodrigo Altoe, Flavio Plentz, Adelina P. Santos, Clascidia A. Furtado, Omar Vilela P. Neto, Mario S. C. Mazzoni, Elmo S. S. Alves, Bernardo R. A. Neves, Claudia Backes, Luiz Gustavo Cancado
Summary: There is a primitive cubic lattice consisting of 1,000 atoms with 488 surface sites. The surface atoms play a crucial role in chemical interactions and determining the functionalities of nanostructures. A novel optical spectroscopy method is introduced to measure the surface area concentration of mass-produced graphene nanoflakes in liquid dispersions, which can be applied to the quality control of mechanically exfoliated two-dimensional nanomaterials.
ACS APPLIED NANO MATERIALS
(2023)
Article
Physics, Applied
Mirela R. Valentim, Matheus J. S. Matos, Mario S. C. Mazzoni
Summary: In this study, we characterized a two-dimensional material with the formula B2N2O2 using a combination of theoretical techniques. We predicted its energetic, thermal, and dynamic stability and determined its electronic properties. We found that the compound is a wideband-gap semiconductor and proposed a synthesis mechanism. Additionally, we demonstrated that these results can be generalized to represent a family of 2D compounds.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
F. D. V. Araujo, F. W. N. Silva, T. Zhang, C. Zhou, Zhong Lin, Nestor Perea-Lopez, Samuel F. Rodrigues, Mauricio Terrones, Antonio Gomes Souza Filho, R. S. Alencar, Bartolomeu C. Viana
Summary: In this study, the behavior of monolayer WS2 on a drilled Si3N4 substrate was investigated through Raman spectroscopy and photoluminescence measurements. It was found that the Si3N4 substrate affects the optical properties of monolayer WS2. Density functional theory and quantum molecular dynamics simulations showed that strain and charge transfer mechanism are important factors for the decrease in photoluminescence.
Article
Chemistry, Physical
Jie Sheng, Jingshan He, Dun Ma, Yuanbo Wang, Wu Shao, Tian Ding, Ronghao Cen, Jingwen He, Zhihao Deng, Wenjun Wu
Summary: This study presents an innovative approach to improve the photovoltaic conversion characteristics and stability of perovskite solar cells through carbon electrode interface modification. By in-situ polymerization and carbonization on the surface of nano-graphite, a dendritic structure carbon electrode is formed, reducing the work function and aligning the energy levels with perovskite. This leads to improved charge and hole collection efficiency, resulting in increased photovoltaic conversion efficiency. Furthermore, the modified carbon electrode-based perovskite solar cells exhibit exceptional stability, maintaining high efficiency even without encapsulation.
Article
Chemistry, Physical
Guodong Shi, Jian Song, Xiaoxiao Tian, Tongtong Liu, Zhanjun Wu
Summary: This study demonstrates the improvement of mechanical properties and reduction of coefficient of thermal expansion (CTE) in graphene oxide (GO)/epoxy (EP) nanocomposites by enhancing the interface between GO and EP through functionalization and incorporating rigid-flexible interphases. The results reveal that the SiO2-PEA-GO hybrid exhibits better strengthening and toughening effects, as well as lower CTE, compared to the PEA-GO hybrid due to the presence of rigid-flexible interfaces with higher bonding strength and better energy dissipation mechanisms. Additionally, the nanocomposites with longer polyetheramine (PEA) molecules in the rigid-flexible interphases demonstrate higher strength and toughness, while maintaining a lower CTE. This work provides a promising strategy for constructing adjustable flexible-rigid interfacial structures and offers potential in developing GO/EP nanocomposites with high mechanical properties and low CTE.
Article
Chemistry, Physical
Rafal Janus, Sebastian Jarczewski, Jacek Jagiello, Piotr Natkanski, Mariusz Wadrzyk, Marek Lewandowski, Marek Michalik, Piotr Kustrowski
Summary: In this study, a facile procedure for the synthesis of CMK-1 and CMK-2 carbon replicas was developed. The method utilizes basic laboratory equipment and a renewable carbon source, and operates under mild conditions. The resulting carbon mesostructures exhibit exquisite replication fidelity and structural homogeneity, making them suitable for applications in various fields.
Article
Chemistry, Physical
Anqi Wang, Connor J. MacRobbie, Alex Baranovsky, Jean-Pierre Hickey, John Z. Wen
Summary: In this study, a novel polymer-free nanothermite aerogel with a wide range of nanoparticle loading was fabricated via a new additive manufacturing process. The SEM images showed a unique porous structure formed by extra thin rGO sheets, wrapping individual nanothermite clusters. The DSC-TGA results and high-speed combustion videos confirmed the enhanced energetic performance of the printed specimen.
Article
Chemistry, Physical
Wanze Wu, Misheng Zhao, Shiwei Miao, Xiaoyan Li, Yongzhong Wu, Xiao Gong, Hangxiang Wang
Summary: Superhydrophobic solar-driven interfacial evaporator is an energy-efficient technology for seawater desalination, which is easily fabricated using robust photothermal superhydrophobic coating and substrate. The created bifunctional coating on the melamine sponge substrate shows stable and highly efficient photothermal and superhydrophobic performance for seawater desalination. This superhydrophobic solar-driven interfacial evaporator is expected to have wide applications in seawater desalination.
Article
Chemistry, Physical
Zichen Xiang, Zhi Song, Tiansheng Wang, Menghang Feng, Yijing Zhao, Qitu Zhang, Yi Hou, Lixi Wang
Summary: This study presents a co-electrospinning synthesis strategy to fabricate lightweight and porous Co@C composite nanofibres with wideband microwave attenuation capacity. The addition of MOF-derived Co additives enhances the low-frequency absorption performance.
Article
Chemistry, Physical
J. Snow, C. Olson, E. Torres, K. Shirley, E. Cazalas
Summary: This study investigates the use of a perovskite-based graphene field effect transistor (P-GFET) device for X-ray detection. The sensitivity and responsivity of the device were found to be influenced by factors such as X-ray tube voltage, current, and source-drain voltage. Simulation experiments were conducted to determine the dose rate and energy incident on the device during irradiation.
Article
Chemistry, Physical
Zuzana Jankovska, Lenka Matejova, Jonas Tokarsky, Pavlina Peikertova, Milan Dopita, Karolina Gorzolkova, Dominika Habermannova, Michal Vastyl, Jakub Belik
Summary: This study provides new insights into microwave-assisted pyrolysis of scrap tyres, demonstrating that it can produce microporous carbon black with potential application in xylene adsorption. Compared to conventional pyrolysis, microwave pyrolysis requires less time and energy while maintaining similar adsorption capacity.
Article
Chemistry, Physical
Max Bommert, Bruno Schuler, Carlo A. Pignedoli, Roland Widmer, Oliver Groning
Summary: A detailed understanding of the interaction between molecules and two-dimensional materials is crucial for incorporating functional molecular films into next-generation 2D material-organic hybrid devices. This study compares the energy level alignment of different-sized fullerenes on a Moire superstructure and finds that C-84 fullerenes can be either neutral or negatively charged depending on slight variations of the electrostatic potential. This discovery suggests a new path to achieve ambipolar charge transfer without overcoming the electronic gap of fullerenes.
Article
Chemistry, Physical
Yuanjing Cheng, Xianxian Sun, Ye Yuan, Shuang Yang, Yuanhao Ning, Dan Wang, Weilong Yin, Yibin Li
Summary: The dual-structure aerogel (GS) consisting of flexible silica fibers and graphene honeycomb structures exhibits excellent resilience, flexibility, and reliability. It also shows remarkable wave absorbing performance, making it an ideal candidate for microwave absorption applications such as flexible electronics and aerospace.
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Chemistry, Physical
Mengdi Wang, Sanyin Qu, Yanling Chen, Qin Yao, Lidong Chen
Summary: The improved thermoelectric properties of conducting polymers are achieved by selectively capturing single-walled carbon nanotubes (SWNTs) in a conducting polymer film, leading to increased carrier mobility and reduced thermal conductivity. The resulting composite film exhibits significantly higher electrical conductivity and lower thermal conductivity compared to films with a mixture of SWNTs. This work provides a convenient and efficient method to enhance the thermoelectric properties of conducting polymers.
Review
Chemistry, Physical
Heng Wei, Weihua Li, Kareem Bachagha
Summary: This article reviews the research progress of carbon nanotube-based microwave absorbing materials (MAMs) in recent years, covering the fundamental theory, design strategies, synthesis methods, and future development directions.
Article
Chemistry, Physical
Chenguang Shi, Junlong Huang, Zongheng Cen, Tan Yi, Shaohong Liu, Ruowen Fu
Summary: This study developed a high-performance Li metal host material, which achieved dendrite-free Li deposition with a low nucleation overpotential and high Coulombic efficiencies through the combination of Ti3C2-g-PV4P sheets and Ag nanoparticles. The full cells assembled with the Li@host anode and LiFePO4 cathode exhibited high discharge capacity and excellent cycling stability, demonstrating a perspective design for future energy storage devices.
Article
Chemistry, Physical
Tomotaro Mae, Kentaro Kaneko, Hiroki Sakurai, Suguru Noda
Summary: A new partial prelithiation method for SiO/C-CNT electrodes was developed, which showed reduced irreversible capacity and achieved high energy densities with good reversibility. The method allows for precise control of the degree of prelithiation and is applicable to various chemistries.