Article
Chemistry, Multidisciplinary
Jian Zhang, Haochun Zhang, Weifeng Li, Gang Zhang
Summary: In recent years, the regulation of nanoscale heat flux has been a forefront of research. In this paper, we designed heat flux concentrators using patterned amorphous and nanomesh structures and found that the heat flux in the central regions is significantly higher than that in the adjacent regions. This work provides a direct design strategy for thermal concentrators using practical nanofabrication technologies.
NANOSCALE ADVANCES
(2023)
Article
Physics, Applied
Feng Gao, Amine Bermak, Sarah Benchabane, Marina Raschetti, Abdelkrim Khelif
Summary: This paper reports on observing nonlinear effects in a nanostrip phononic metasurface which allows for tuning of resonance frequencies through power stimulation. The nonlinearity is found to be caused by power-dependent coupling of adjacent nanostrips, leading to an improvement in the quality factor of the resonator.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Soheil Zibod, Payman Rasekh, Murat Yildrim, Wei Cui, Ravi Bhardwaj, Jean-Michel Menard, Robert W. Boyd, Ksenia Dolgaleva
Summary: This study demonstrates a strong nonlinear response in crystalline quartz in the terahertz frequency region. A theoretical model is modified to predict the Kerr coefficient and the time-domain analysis shows a saturation process with increasing THz amplitude. The nonlinear refractive index is estimated to be several orders of magnitude larger than typical values in the visible region, and a negative fifth-order susceptibility is measured.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Rajnish Kumar, Shlomi Arnon
Summary: This paper presents an optimization algorithm for ground station's electronically switchable subarray, which maximizes the signal-to-noise ratio (SNR) within the range of satellite elevation angles, improving the performance of LEO satellite communication.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Chemistry, Physical
Jose A. Alarco, Bharati Gupta, Mahboobeh Shahbazi, Dominique Appadoo, Ian D. R. Mackinnon
Summary: THz/Far Infrared synchrotron absorption experiments on pure and doped MgB2 samples show that the absorption spectral weight at low wavenumber evolves as temperature decreases to 10 K. Increased peak intensities as MgB2 and doped MgB2 approach, and cross, the superconducting transition temperature suggest a strong link to superconductivity induced by subtle shifts in structural symmetry. The observed significant increases in absorption at frequencies corresponding to superconducting gaps, along with the identification of key integer ratios in real and reciprocal spaces, support the connection between superlattice frequencies and the superconducting transition in MgB2.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Physics, Applied
Julio Andres Iglesias Martinez, Johnny Moughames, Gwenn Ulliac, Muamer Kadic, Vincent Laude
Summary: Phononic crystals have the ability to efficiently manipulate acoustic and elastic waves, but their application in areas such as medical imaging faces challenges. This study presents a three-dimensional phononic crystal with a wide bandgap, manufactured using two-photon lithography for experimental characterization.
APPLIED PHYSICS LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Mathias Pech, Dirk Schulz
Summary: The gain compression and excitation of higher order harmonics in 3 nm wide on-insulator type FinFETs are investigated, and the high computational burden associated with the time-resolved analysis of such three-dimensional devices is addressed by applying a mode-space approach onto a Quantum Liouville-type Equation.
SOLID-STATE ELECTRONICS
(2023)
Article
Physics, Applied
Leonardo Medrano Sandonas, Alvaro Rodriguez Mendez, Rafael Gutierrez, Gianaurelio Cuniberti, Vladimiro Mujica
Summary: The study proposes a nanoscale phononic analog of the Ranque-Hilsch vortex tube, where heat flowing at a given temperature is split into two streams to induce a temperature asymmetry. The results show that structural asymmetry in the contact regions is crucial for producing this effect, which can be controlled by adjusting parameters. The research provides insights into thermal management in nanoscale materials and raises the question of whether thermal asymmetry can survive phonon scattering over long distances.
PHYSICAL REVIEW APPLIED
(2021)
Article
Engineering, Electrical & Electronic
Tobias Doeker, Christoph Herold, Johannes M. M. Eckhardt, Thomas Kurner
Summary: Low terahertz frequencies are potential candidates for future wireless communication systems. Despite the high path losses, highly directive antennas can be used to compensate for the losses, making eavesdropping challenging. This article evaluates eavesdropping possibilities by investigating the scattering properties of common office objects, such as a coffee cup, a thermos, and a laptop. The results show that eavesdropping opportunities are good when a thermos is used, while for other objects, direct eavesdropping results in lower secrecy capacity in most cases.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Materials Science, Multidisciplinary
Roman Anufriev, Yunhui Wu, Jose Ordonez-Miranda, Masahiro Nomura
Summary: This study investigates the thermal conductivity of SiC nanostructures and finds that it is lower than that in bulk materials and scales proportionally with the narrowest dimension of the structures. The observed suppression of heat conduction is linked to surface phonon scattering, which limits the phonon mean free path and reduces the thermal conductivity.
NPG ASIA MATERIALS
(2022)
Review
Nanoscience & Nanotechnology
Roman Anufriev, Jeremie Maire, Masahiro Nomura
Summary: Phononic crystals manipulate phonon transport through phonon interference in periodic structures and have found applications in microscale optomechanical devices. The reduction of thermal conductivity in 1D phononic crystals predicted by theoretical works is not consistently observed, with most evidence suggesting incoherent heat conduction at room temperature.
Article
Computer Science, Information Systems
Brecht De Beelde, Emmeric Tanghe, Claude Desset, Andre Bourdoux, David Plets, Wout Joseph
Summary: The article presents channel measurements in an office environment, discussing the model of Line-of-Sight path loss and attenuation due to blockage by desk objects and plant obstructions. The experiment found that the measured attenuation is higher when the distance between antennas decreases.
Article
Engineering, Electrical & Electronic
Sumit Pratap Singh, Timo Rahkonen, Marko E. Leinonen, Aarno Parssinen
Summary: This article presents the design and analysis of a single-stage single-ended (SE) and a multistage pseudo-differential cascode low-noise amplifiers (D-LNA) with center frequencies of 235 GHz and 290 GHz, respectively. The gain-boosting and noise reduction techniques in the cascode structure are explored, and it is found that they are not effective beyond f(max)/2. The single-stage SE LNA achieves a small signal gain of 7.8 dB at 235 GHz with a 3-dB bandwidth of 50 GHz and power consumption of 18 mW. The four-stage differential LNA achieves a gain of 12.9 dB at 290 GHz and 11.2 dB at 300 GHz with a current draw of 68 mA from a 2-V supply.
IEEE JOURNAL OF SOLID-STATE CIRCUITS
(2023)
Article
Optics
Anna Theodosi, Odysseas Tsilipakos, Costas M. Soukoulis, Eleftherios N. Economou, Maria Kafesaki
Summary: Graphene is a promising material for nonlinear applications in the THz regime due to its high third order nonlinearity and ability to support surface plasmons. In this study, 2D-patterned graphene-patch metasurfaces are investigated for efficient third harmonic generation. The efficiency is enhanced by aligning the fundamental and third harmonic frequencies with the metasurface resonances, achieved through 2D-patterning that modifies the dispersion of plasmons. High efficiencies of -20dB (1%) for input intensity 0.1 MW/cm(2) are achieved, and the results demonstrate the potential of graphene-based metasurfaces for nonlinear applications.
Article
Engineering, Electrical & Electronic
Chun-Hsing Li, Te-Yen Chiu
Summary: This article proposes low-loss terahertz (THz) interconnects for THz system-on-package heterogeneous integration, with the capability of single-band, dual-band, and broadband operations. The proposed interconnects are experimentally validated and provide low insertion loss and high return loss at different frequencies of interest.
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Aristotelis P. Sgouros, Charalampos Androulidakis, Georgia Tsoukleri, George Kalosakas, Nikos Delikoukos, Stefano Signetti, Nicola M. Pugno, John Parthenios, Costas Galiotis, Konstantinos Papagelis
Summary: The study demonstrates that embedding few graphene flakes into polymer matrices in a ladder-like morphology allows for significant deformation. This unique architecture prevents interlayer sliding and optimizes strain transfer efficiency, indicating potential for various applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Aristotelis P. Sgouros, Eleni Karantagli, Mihail M. Sigalas
Summary: This study investigated the effect of nanopatterning and additional superstrate layers on photovoltaics efficiency through numerical calculations. The results showed that both superstrate deposition and periodic patterns can significantly improve absorption efficiency of wafers, allowing for maximum efficiency even at high incidence angles.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS
(2021)
Article
Polymer Science
Aristotelis P. Sgouros, Constantinos J. Revelas, Apostolos T. Lakkas, Doros N. Theodorou
Summary: The study uses self-consistent field theory to investigate the contact of single or opposing silica plates with bare or grafted surfaces in vacuum or melt phases. Non-bonded interactions are described using Hamaker potential and free energy densities, with a focus on wetting conditions and the potential of mean force between plates. The research also examines the impact of asymmetries, grafting density, and chain length of grafted molecules on steric stabilization.
Article
Physics, Applied
A. Mohammadzadeh, A. Rehman, F. Kargar, S. Rumyantsev, J. M. Smulko, W. Knap, R. K. Lake, A. A. Balandin
Summary: This study focuses on the depinning of nearly commensurate charge-density waves in 1T-TaS2 thin films at room temperature. The depinning process in 1T-TaS2 does not show a noticeable increase in electric current, unlike conventional charge-density-wave materials with quasi-1D crystal structure. The results suggest important implications for potential applications of charge-density wave devices in electronics.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Applied
Amrit De, Tonmoy K. Bhowmick, Roger K. Lake
Summary: Large magneto-optic Kerr effects are observed in the proximity-coupled antiferromagnet and topological insulator film. The MOKE signal can be significantly enhanced by optimizing thickness and electrically switched by varying the Fermi energy, showing potential for low-power spintronics and magneto-optic devices. The simple structure is also resilient to material growth errors up to 5%.
PHYSICAL REVIEW APPLIED
(2021)
Article
Physics, Applied
Z. R. Yan, Y. Z. Liu, Y. Guang, K. Yue, J. F. Feng, R. K. Lake, G. Q. Yu, X. F. Han
Summary: A skyrmionic programmable logic device (SPLD) with complete Boolean logic functions is proposed and analyzed through micromagnetic simulations. The device is based on an antiferromagnet-ferromagnet bilayer structure, where artificially introduced pinning sites trap skyrmions to achieve different logic functions. The SPLD shows robust performance even under thermal fluctuations and inhomogeneity effects, providing insights for the design of programmable spin-logic devices.
PHYSICAL REVIEW APPLIED
(2021)
Article
Chemistry, Physical
Nikos Kanistras, Aristotelis P. Sgouros, George Kalosakas, Michail M. Sigalas
Summary: Recent experimental advances have made it possible to synthesize a wide range of transition-metal dichalcogenides (TMDs) and combine TMDs of different compositions in the same planar structure. In this study, the in-plane heat dissipation of these materials is investigated using molecular dynamics simulations. The results show that the heat dissipation of bilayer heterostructures is significantly enhanced compared to single-layer ones.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Alexander A. Balandin, Fariborz Kargar, Tina T. Salguero, Roger K. Lake
Summary: The advent of graphene and other two-dimensional van der Waals materials has led to significant progress in fundamental science. This review focuses on the emerging field of one-dimensional van der Waals quantum materials, which involves atomic chains and their unique properties. The authors discuss various quantum effects, such as charge-density-wave condensate and topological phases, as well as the potential applications of these materials in composites.
Article
Chemistry, Physical
Aristotelis P. Sgouros, Constantinos J. Revelas, Apostolos T. Lakkas, Doros N. Theodorou
Summary: Predicting the distribution of a chemical species in different phases is crucial for environmental protection, pharmaceuticals, and high added-value chemicals. This study develops a theoretical framework to determine the solvation free energy of grafted particles in a molten polymer matrix, which can be used to estimate their partition coefficients in polymer melts.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Polymer Science
Constantinos J. Revelas, Aristotelis P. Sgouros, Apostolos T. Lakkas, Doros N. Theodorou
Summary: We have developed a three-dimensional self-consistent field-theoretic approach (3D-SCFT) to study polymer matrix nano composites with different geometries. By using the finite element method (FEM), we discretized Edwards's diffusion equation in space and time. The accuracy of the smearing approximation (SA), which treats grafting points as delocalized across a spherical shell, was assessed by comparing it with the 3D-SCFT. The SA is able to reproduce important structural and thermodynamic properties of the nano composites, but deviations are observed in the mushroom regime. The 3D-SCFT, which fixes grafting points in space, provides a more accurate description of chain stretching and offers detailed visualization of the brush transition.
Article
Mathematics, Interdisciplinary Applications
Aristotelis P. Sgouros, Doros N. Theodorou
Summary: Mesoscopic simulations are commonly used to study long polymer chains and soft matter systems and understand their relaxation processes. However, coarse-grained chains may experience unphysical intercrossing due to their softness. This issue is addressed by introducing slip-springs to restore topological constraints. The fixed image convention (FIC) is proposed as a more stable and efficient method for determining the separation vectors of overextended bonds compared to the commonly used minimum image convention (MIC).
Article
Nanoscience & Nanotechnology
Yuan Li, Hector Gomez, Jason Tran, Yanwei He, Chengyun Shou, Tianchen Yang, Peng Wei, Roger K. Lake, Jianlin Liu
Summary: In this study, the growth of monolayer h-BN on Ni substrates incorporated with oxygen atoms was investigated. It was found that the increase of incorporated oxygen concentration in the Ni substrate had an adverse effect on the morphology and growth rate of h-BN. Density functional theory calculations revealed that substitutional oxygen atoms can inhibit the growth of h-BN films. The as-grown h-BN monolayers on oxygen-incorporated Ni substrates exhibited high-quality properties.
Article
Physics, Applied
Jonas O. Brown, Maedeh Taheri, Fariborz Kargar, Ruben Salgado, Tekwam Geremew, Sergey Rumyantsev, Roger K. Lake, Alexander A. Balandin
Summary: This study investigates the temperature dependence of current fluctuations in thin films of quasi-two-dimensional 1T-TaS2 van der Waals material. The current fluctuations appear prominently at electric fields corresponding to transitions between charge-density-wave phases and at the onset of charge density wave domain depinning. The depinning threshold field, ED, increases monotonically with decreasing temperature and film thickness, indicating surface pinning of charge density waves.
APPLIED PHYSICS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Fariborz Kargar, Andrey Krayev, Michelle Wurch, Yassamin Ghafouri, Topojit Debnath, Darshana Wickramaratne, Tina T. Salguero, Roger K. Lake, Ludwig Bartels, Alexander A. Balandin
Summary: We conducted a study of quasi-1D TaSe3-delta nanoribbons exfoliated onto gold substrates using tip-enhanced Raman scattering spectroscopy and photoluminescence. The results showed that the nanoribbons exhibit either metallic or semiconducting behavior depending on the selenium deficiency. The study also found that TERS is essential for understanding the properties of low-dimensional systems.
Article
Materials Science, Multidisciplinary
Jie-Xiang Yu, Jiadong Zang, Roger K. Lake, Yi Zhang, Gen Yin
Summary: The quantum geometry of the Fermi surface can be described numerically by a three-dimensional discrete quantum manifold, avoiding singularities in the Fermi sea and enabling precise computation of the intrinsic Hall conductivity resolved in spin. The method remains accurate even when the Fermi level is arbitrarily close to singularities, and robust when Kramers degeneracy is protected by symmetry.
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
