Article
Chemistry, Physical
A. Minakov, M. Pryazhnikov, Y. N. Suleymana, V. D. Meshkova, D. Guzei
Summary: The paper presents the results of systematic experimental studies on the interfacial tension and oil wettability of three different types of rock in nanosuspensions. It is shown that the contact angle of an oil droplet resting on a rock in a nanosuspension increases significantly with increasing nanoparticle concentration. The study also systematically investigates the effects of nanoparticle size and composition on interfacial tension and contact angle.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
M. Y. Ruan, C. Q. Yang, L. Wang, P. B. Jin, Z. L. Guo, X. L. Wei, W. X. Wu
Summary: The magnetization and electron spin resonance in nanocrystals of antiferromagnet GdVO4 were investigated, showing enhanced paramagnetic-like behavior with smaller grain sizes. Further reduction in grain size to around 30 nm resulted in dramatic decrease in saturation magnetization and negative entropy change. The aggregation effect was believed to be responsible for this decline.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
M. Y. Ruan, Z. L. Guo, Q. C. Luo, L. Wang, X. L. Wei, T. Y. Li
Summary: We investigated the size effect on the magnetocaloric effect (MCE) of Er2BaNiO5, a Haldane spin-chain antiferromagnet. The results showed that the decrease in average crystallite size led to an enhancement of magnetization and paramagnetic-like behavior. The dominant antiferromagnetic (AFM) interactions in the bulk sample were suppressed in the nano-size samples, resulting in a dramatic reduction of the Haldane gap. Additionally, the size effect significantly influenced the MCE, leading to a monotonic increase in MCE in the nano-size samples compared to the disappearance of negative MCE in the bulk sample. The maximum entropy change of the nano-size samples increased nearly 3.2 times compared to the bulk sample. The ESR results confirmed the increasing of paramagnetic (PM) ions in the nano-size samples, as evidenced by the observed ESR signals of Er3+ and Ni2+ ions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Polymer Science
Rui Shi, Linxiuzi Yu, Niboqia Zhang, Yang Yang, Zhong-Yuan Lu, Hu-Jun Qian
Summary: We investigate the molecular origin of mechanical reinforcement in a polymer nanocomposite (PNC) under a glass state via molecular dynamics simulations. The strength of the PNC system is mainly reinforced by reducing plastic deformations of the nanoparticle neighborhood. This reinforcement effect decays with increasing strain rate, and the amplitude depends on the difference between the energy barrier for activation of the nanoparticle neighborhood and the work done by applied stress.
Article
Engineering, Multidisciplinary
Gokberk Yalcin, Semiha Oztuna, Ahmet Selim Dalkilic, Somchai Wongwises
Summary: This experimental study investigated the impact of ZnO particle size on the viscosity of water-based nanofluids. Nanofluid samples with different volume concentrations and ZnO particle sizes were prepared and their viscosity was measured at various temperatures. The study found that the maximum relative viscosity was observed for 1% ZnO (50 to 150 nm) nanofluid, which was 1.35 times that of water. The stability of the samples was evaluated using Zeta potential values, and the correlation for dynamic viscosity showed a high level of accuracy.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Lei Sun, Dan Lv, Yi Yang, Wei Wang, Zhong-yue Gao, Jia Bao
Summary: By utilizing Monte Carlo simulation, the magnetic properties and magnetocaloric effect of a ferromagnetic Janus particle with mixed spins (1/2, 1, 3/2) were systematically examined. It was observed that the maximum values of the isothermal magnetic entropy change and adiabatic temperature change increase as the exchange couplings decrease or the external magnetic field increases.
Article
Engineering, Chemical
K. Lehtipalo, L. R. Ahonen, R. Baalbaki, J. Sulo, T. Chan, T. Laurila, L. Dada, J. Duplissy, E. Miettinen, J. Vanhanen, J. Kangasluoma, M. Kulmala, T. Petaja, T. Jokinen
Summary: Numerous research groups conduct measurements of aerosol particles and clusters smaller than 3 nm in diameter using tools like the Airmodus nano-Condensation Nucleus Counter. By changing the supersaturation of the working fluid, size analysis can provide accurate data for atmospheric field measurements of sub-3 nm clusters and particles.
JOURNAL OF AEROSOL SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Mamotaj Khatun, Sanjoy Mukherjee, Partha Mitra
Summary: In this work, the electrical, conductivity, and dielectric properties of zinc stannate nanoparticles synthesized by co-precipitation method followed by ball milling were investigated. The results showed that the particle size and band gap varied with the milling time. Complex impedance analysis revealed the presence of non-Debye type or multiple relaxations and depressed semicircles. The frequency dependent electrical conductivity showed the highest conductivity for the two hour milled sample, and the real and imaginary component of the dielectric constant were also maximum for this sample.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Jamieson Brechtl, Michael R. Koehler, Michael S. Kesler, Hunter B. Henderson, Alexander A. Baker, Kai Li, James Kiggans, Kashif Nawaz, Orlando Rios, Ayyoub M. Momen
Summary: Magnetocaloric alloys, such as LaFeMnSi, have shown potential for use in non-vapor compression cycles. The study revealed that high energy ball milling retained most of the original magnetocaloric phase in the powders, while also reducing crystallinity. Additionally, a decrease in Fe content was found to lead to a drop in the Curie temperature, with milling causing an increase in the Curie temperature by approximately 3-6 degrees Celsius.
Article
Chemistry, Inorganic & Nuclear
Hossein Barani, Boris Mahltig
Summary: Fluorescent silver nanoparticles were synthesized using trisodium citrate as a reducing and stabilizing agent via a microwave-assisted reduction process. The characteristics and fluorescent properties of the synthesized silver nanoparticles were influenced by the reaction duration, temperature, and trisodium citrate concentration. Lower trisodium citrate concentration resulted in a prolonged reduction process and the formation of larger silver nanoparticles, while higher reaction temperature led to sharper and narrower emission peaks.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shuji Yamashita, Shin-ichi Miyashita, Takafumi Hirata
Summary: Single particle inductively coupled plasma mass spectrometry was used to measure the size of individual nanoparticles. Two calibration approaches, particle size standard and ion standard solution, were evaluated for their uncertainties in size analysis. The relative uncertainties for 50 nm silver nanoparticles using particle size standards of 30 nm, 60 nm, and 100 nm were 15.0%, 9.9%, and 10.8% respectively. For the ion standard solution approach, the relative uncertainties for the 50 nm silver nanoparticles in solutions of 1 ng/g, 10 ng/g, and 100 ng/g were 18.5%, 7.6%, and 4.7% respectively. A high concentration working standard solution is recommended to improve precision on particle size determinations by spICP-MS.
Article
Chemistry, Multidisciplinary
Celestine Hong, Osaid Alser, Anthony Gebran, Yanpu He, Wontae Joo, Nikolaos Kokoroskos, George Velmahos, Bradley D. Olsen, Paula T. Hammond
Summary: In this study, the interaction between nanoparticles and platelets was systematically evaluated in vitro and in vivo, showing that particle size plays a crucial role. Smaller particles were found to bind a larger percentage of platelets, while intermediate particles recruited more platelets to the wound, leading to enhanced hemostasis. Furthermore, smaller and intermediate nanoparticles exhibited longer circulation lifetimes, while larger nanoparticles accumulated more in the lungs. These findings highlight the importance of platelet content in aggregates and extended nanoparticle circulation lifetimes in enhancing hemostasis, providing useful insights for engineering particulate hemostats.
Article
Engineering, Chemical
Zuyang Zhang, Daoyin Liu
Summary: This study develops a cohesive crack model based on the discrete-finite element method (FDEM) to simulate the collision behavior between a complex agglomerate and a wall. The model is validated by comparing the simulation results with experimental data. The sensitivity analysis reveals that the fragmentation distribution and damage ratio have specific relationships with other parameters.
Article
Physics, Multidisciplinary
Zhen-yu Liu, Wei Wang, Bo-chen Li, Zhen-yao Xu
Summary: The thermodynamic characteristics, magnetocaloric effect, and ground-state properties of an edge-decorated Ising multilayer nanoparticle with graphene-like structure are studied using Monte Carlo simulation. The findings demonstrate that the magnetic behaviors of the system can be controlled by size effect, crystal field, exchange coupling, and applied magnetic field. Additionally, the curves of magnetic entropy change and relative cooling power (RCP) induced by various physical parameters are given.
Article
Materials Science, Multidisciplinary
O. Yildirim, E. Yuzuak, O. Tozkoporan, I. Dincer, E. Duman
Summary: CoMn0.95V0.05Ge nano-powders prepared by ball milling exhibit a second order magnetic phase transition, making them a promising candidate for magnetic cooling technology.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sean M. Walker, Tarun Patel, Junichi Okamoto, Deler Langenberg, E. Annelise Bergeron, Jingjing Gao, Xuan Luo, Wenjian Lu, Yuping Sun, Adam W. Tsen, Jonathan Baugh
Summary: This study investigates the properties of ultrathin 1T-TaS2 and reveals the presence of nonequilibrium phases consisting of intertwined NC-like and C-like domains. The relationship between electronic inhomogeneity and bulk resistivity in ultrathin 1T-TaS2 is also explored.
Article
Chemistry, Physical
Wenhao Zhang, Degong Ding, Jingjing Gao, Kunliang Bu, Zongxiu Wu, Li Wang, Fangsen Li, Wei Wang, Xuan Luo, Wenjian Lu, Chuanhong Jin, Yuping Sun, Yi Yin
Summary: Intercalation is an effective method to modify physical properties and induce novel electronic states of transition metal dichalcogenide materials. In this study, the successful synthesis of copper-intercalated 1T-TaS2 is reported, and the structural and electronic modifications are characterized using various techniques. The intercalated copper atom suppresses the commensurate charge density wave phase and two specific electronic modulations are discovered in the near-commensurate charge density wave phase.
Article
Chemistry, Multidisciplinary
Yanan Huang, Jianguo Si, Shuai Lin, Hongyan Lv, Wenhai Song, Ranran Zhang, Xuan Luo, Wenjian Lu, Xuebin Zhu, Yuping Sun
Summary: This study reports the colossal 3D electrical anisotropy of layered MAB-phase MoAlB single crystal. Through experimental and theoretical investigations, it is demonstrated that the crystal structure, chemical bond, phonon vibration, and electronic structure of MoAlB result in its significant electrical conductivity anisotropy. This work provides valuable insights for the design of functional electronic devices and the synthesis of new 2D materials.
Article
Materials Science, Multidisciplinary
Wenhao Zhang, Jingjing Gao, Li Cheng, Kunliang Bu, Zongxiu Wu, Ying Fei, Yuan Zheng, Li Wang, Fangsen Li, Xuan Luo, Zheng Liu, Yuping Sun, Yi Yin
Summary: The electronic evolution of Ti-doped 1T-TaS2 is studied using scanning tunneling microscopy (STM), revealing the emergence of a clover-shaped orbital texture and a transition from insulator to metal. Trapped electrons are directly visualized in dI/dV conductance maps, providing insights into the electronic state evolution in doped strong-correlated systems.
NPJ QUANTUM MATERIALS
(2022)
Article
Physics, Applied
Meixin Cheng, Shazhou Zhong, Nicolas Rivas, Tina Dekker, Ariel Alcides Petruk, Patrick Gicala, Kostyantyn Pichugin, Fangchu Chen, Xuan Luo, Yuping Sun, Adam W. Tsen, German Sciaini
Summary: In this study, time-resolved broadband transient reflectivity (tr-bb-TR) measurements were used to investigate the photoinduced electronic changes and dynamics of interlayer shear phonon in T-d-MoTe2 single crystal under different incident pump fluences. The results show a gradual evolution of both the photoinduced electronic changes and interlayer shear phonon Fourier spectra as a function of pump fluence, ruling out the threshold-like change associated with the ultrafast photoinduced phase transition. Additionally, a large redshift of the interlayer shear phonon Fourier spectral features suggests significant renormalization effects on the dielectrically susceptible interband transitions.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Daozhi Shen, HeeBong Yang, Christian Spudat, Tarun Patel, Shazhou Zhong, Fangchu Chen, Jian Yan, Xuan Luo, Meixin Cheng, German Sciaini, Yuping Sun, Daniel A. Rhodes, Thomas Timusk, Y. Norman Zhou, Na Young Kim, Adam W. Tsen
Summary: In this study, we demonstrate a broadband photodetector based on a two-dimensional van der Waals heterostructure, which is sensitive to light from the mid-infrared to deep-ultraviolet range at room temperature. The device exhibits high detectivity and high bandwidth, and can be miniaturized to submicron dimensions for easy measurement of local optical properties on atomic-layer-thickness samples.
Article
Multidisciplinary Sciences
Shiwei Shen, Chenhaoping Wen, Pengfei Kong, Jingjing Gao, Jianguo Si, Xuan Luo, Wenjian Lu, Yuping Sun, Gang Chen, Shichao Yan
Summary: Researchers demonstrate a transition from an insulating gap to a tunable Kondo resonance in 1T-TaS2 by Pb intercalation, providing a pathway for creating and tuning many-body electronic states in layered narrow-electronic-band materials.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Tianyang Wang, Xuan Luo, Jingjing Gao, Zhongzhu Jiang, Wei Wang, Xingcai Yang, Nan Zhou, Xiaoguang Zhu, Lei Zhang, Wenjian Lu, Wenhai Song, Hongyan Lv, Yuping Sun
Summary: Fe-intercalated T-d-FexMoTe2 single crystals (0 < x < 0.15) were successfully grown and it was found that the phase transition temperature T-S is gradually suppressed with increasing x. Theoretical calculation suggests that the increased energy of the T-d phase, enhanced transition barrier, and more occupied bands in 1T' phase is responsible for the suppression in T-S. In addition, a rho(alpha)-lnT behavior induced by Kondo effect is observed with x >= 0.08, due to the coupling between conduction carriers and the local magnetic moments of intercalated Fe atoms. A spin-glass transition occurs at approximate to 10 K for T-d-Fe0.15MoTe2. The calculated band structure of T-d-Fe0.25MoTe2 shows that two flat bands exist near the Fermi level, which are mainly contributed by the d(yz) and dx2-y2 orbitals of the Fe atoms. The electronic phase diagram of T-d-FexMoTe2 is established for the first time in this work.
ADVANCED MATERIALS
(2023)
Article
Physics, Applied
Linlin An, Jianguo Si, Xiangde Zhu, Chuanying Xi, Nanyang Xu, Yuanjun Yang, Lan Wang, Wei Ning, Wenjian Lu, Mingliang Tian
Summary: We report experimental studies on the angular-dependent magnetoresistance (MR) of In3Rh single crystals under high magnetic fields. The crystals exhibit large, non-saturating linear MR and remarkable quantum oscillations with multi-frequencies. Analysis of the quantum oscillations reveals the presence of three bands hosting a nontrivial Berry phase, which is supported by first-principles calculations. Our work provides a platform for exploring topological materials in indium-rich transition metal compounds.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Multidisciplinary
Ding-Fu Shao, Yuan-Yuan Jiang, Jun Ding, Shu-Hui Zhang, Zi-An Wang, Rui-Chun Xiao, Gautam Gurung, W. J. Lu, Y. P. Sun, Evgeny Y. Tsymbal
Summary: It is demonstrated that fully compensated antiferromagnets can support Néel spin currents, which can be used to drive spin-dependent transport phenomena in antiferromagnetic tunnel junctions (AFMTJs). The study uncovers the potential of fully compensated antiferromagnets and opens a new route for efficient information writing and reading in antiferromagnetic spintronics.
PHYSICAL REVIEW LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Z. Z. Jiang, X. Liang, X. Luo, J. J. Gao, W. Wang, T. Y. Wang, X. C. Yang, X. L. Wang, L. Zhang, Y. Sun, P. Tong, J. F. Hu, W. H. Song, W. J. Lu, Y. P. Sun
Summary: The study on two-dimensional magnetic material Cr2Te3 reveals its response to external stimuli and the transition between different magnetic phases. The material undergoes a first-order phase transition from low-temperature ferromagnetic phase to antiferromagnetic phase, and a second-order phase transition between antiferromagnetic and paramagnetic phases. The material also exhibits strong spin-lattice coupling and notable negative thermal expansion and magnetostriction characteristics.
Article
Materials Science, Multidisciplinary
Ding-Fu Shao, Shu-Hui Zhang, Rui-Chun Xiao, Zi-An Wang, W. J. Lu, Y. P. Sun, Evgeny Y. Tsymbal
Summary: In this study, we demonstrate the realization of a spin-neutral tunneling anomalous Hall effect (TAHE) in an antiferromagnetic (AFM) tunnel junction driven by spin-neutral currents. We show that the symmetry mismatch between the AFM electrode and the nonmagnetic barrier with strong spin-orbit coupling (SOC) results in spin-dependent momentum filtering, generating transverse Hall currents in each electrode. This finding opens up new possibilities for research in magnetoelectronics and spintronics.
Article
Physics, Multidisciplinary
J. Yan, Z. Z. Jiang, R. C. Xiao, W. J. Lu, W. H. Song, X. B. Zhu, X. Luo, Y. P. Sun, M. Yamashita
Summary: This study investigates the magnetotransport properties of EuIn2As2 through detailed magnetoresistance and Hall measurements, revealing anomalous Hall effect and large topological Hall effect, suggesting their origins and providing insights for realizing axion insulator states.
PHYSICAL REVIEW RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Jian-Guo Si, Wen-Jian Lu, Yu-Ping Sun, Peng-Fei Liu, Bao-Tian Wang
Summary: The origin of the charge density wave (CDW) order and the superconducting properties of CsV3Sb5 under pressure are studied using first-principles calculations. The momentum-dependent electron-phonon coupling effect is found to play an important role in the formation of CDW order, and the experimentally observed double superconducting domes can be explained by the movement of the van Hove singularity and the redistribution of the electron-phonon coupling. The main contribution to the electron-phonon coupling shifts from in-plane vibrational modes to out-of-plane modes with increasing pressure.
Article
Physics, Condensed Matter
A. Jbeli, N. Zeiri, N. Yahyaoui, P. Baser, M. Said
Summary: The electronic and optical properties of CdSe/ZnSe semiconductor core/shell quantum dots with hydrogenic donor impurity were investigated theoretically. The perturbation and variational methods were used to calculate the binding energy, photoionization cross-section, polarizability, and diamagnetic susceptibility of the excited impurity under various conditions. A significant stark shift in the binding energy was observed under the influence of an external electric field.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Rahat Batool, Tariq Mahmood, Sajid Mahmood, Abdul Aziz Bhatti
Summary: This study investigates the effects of alkali metal doping (Na, K, Cs) on MAPbI3 through compositional engineering. The results show that doping Na, K, and Cs can improve the phase stability, thermodynamic stability, and optical absorption of MAPbI3.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
N. A. N. M. Nor, M. A. H. Razali, W. H. A. W. K. Annuar, N. N. Alam, F. N. Sazman, N. H. M. Zaki, A. S. Kamisan, A. I. Kamisan, M. H. Samat, A. M. M. Ali, O. H. Hassan, B. U. Haq, M. Z. A. Yahya, M. F. M. Taib
Summary: This study investigates the potential of quaternary chalcogenides semiconductors as thin film solar cell absorbers using density functional theory (DFT) and density functional theory plus Hubbard U (DFT + U) approach. The results show that by applying Hubbard U terms, the electronic band gaps can be accurately predicted, providing valuable insights for finding cost-effective new thin film solar cell materials.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Ashwani Kumar, Anuj Kumar, Mohaseen S. Tamboli, Mohd Ubaidullah, J. Jayarubi, S. K. Tripathi
Summary: In this study, lead-based perovskite solar cells are replaced by bismuth-based perovskite cells to overcome their instability and toxicity. CsBi3I10 perovskite films are fabricated using a modified drop-casting process, and the effects of post-annealing temperature on the morphological, structural, and optical properties are investigated. The photovoltaic performance of the cells without a hole transport layer is also quantitatively evaluated.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Yang Gao, Shu-Ming Chen, Shuo Cao, Shang-Zhou Zhang, Philippe Djemia, Qing-Miao Hu
Summary: This study investigates the phase stability, elastic modulus, and hardness of ternary nitride Ti1-xAlxN. It is found that the hardness increases with the Al content x. The cubic B1 structure is more stable for x < about 0.75, while the hexagonal structure (B4) is more stable for x > about 0.75. The composition dependent hardness and phase decomposition contribute to the convex shaped hardness curve of Ti1-xAlxN.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Fengqi Wang, Qinyan Ye, Xulin He, Kun Luo, Xiaolong Ran, Xingping Zheng, Cheng Liao, Ru Li
Summary: This report uses rigorous calculations based on density functional theory to study the piezoelectric and elastic properties of wurtzite aluminum nitride (w-AlN) with single- and co-alloying by Hf (or Zr) and Sc. The research finds that the (HfSc)0.375Al0.625N and (ZrSc)0.375Al0.625N with stable wurtzite phase have a large piezoelectric coefficient d33 of 49.18 pC/N and 47.00 pC/N, respectively. However, the piezoelectric voltage constant g33 and electromechanical coupling constant k233 of HfAlN, ZrAlN, HfScAlN, and ZrScAlN are smaller than that of ScAlN, which is attributed to the large dielectric constant epsilon 33 of Hf (or Zr) alloying samples. Furthermore, the calculations of internal parameter u and bond angle alpha elucidate the brittle-to-ductile transformation in alloying w-AlN crystal structure. Electronic structure calculations show that the bandgap decreases almost linearly with the increase of alloying concentration, and the Hf (or Zr) alloying compounds become n-type semiconductors due to the existing high-charge states.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
S. R. Athul, K. Arun, S. Swathi, U. D. Remya, Andrea Dzubinska, Marian Reiffers, Nagalakshmi Ramamoorthi
Summary: The magnetic and magnetocaloric characteristics of Ho6FeSb2 have been studied. The compound exhibits two second-order ferromagnetic transitions, enabling hysteresis-free magnetocaloric effect across a wide temperature range. The alloy has high relative cooling power and magnetoresistance, making it suitable for hysteresis-free magnetocaloric applications.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Reena Sharma, Neelam Hooda, Ashima Hooda, Satish Khasa
Summary: A polycrystalline double perovskite La2CoMnO6 sample was prepared and its structural, dielectric and magnetic properties were investigated. The sample exhibited complex structures and magnetic behavior, and showed good conductivity and dielectric performance. Its multi-domain magnetic structure suggests its suitability for memory device applications.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Shubha Dubey, Jisha A. Abraham, Kumud Dubey, Vineet Sahu, Anchit Modi, G. Pagare, N. K. Gaur
Summary: This study investigates the optoelectronic, thermodynamic, thermoelectric, and mechanical stability properties of RhTiP Half Heusler semiconductors. The results show that RhTiP is a non-magnetic material with confirmed mechanical stability. It is found to be an indirect-bandgap semiconductor with a good Seebeck coefficient. This study suggests that RhTiP has promising applications in the thermoelectric and optoelectronic fields.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Xun Xie, Jiong-Ju Hao, Hong-Wei Yang
Summary: This work presents a multilayer film structure that uses optical resonance to prepare highly efficient and saturated red, green, and blue transmittance colors. Numerical simulations and analysis show that the structure can produce R, G, and B colors with a purity comparable to standard RGB colors, while maintaining efficient transmission efficiency and obtaining a rich variety of structural colors. Additionally, a metallic interlayer is introduced to selectively suppress resonances in the short-wavelength region, improving the purity of the red color. The study also investigates the effect of the incidence angle on color purity and transmission efficiency.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Yueqiang Zhao
Summary: Solubility property is of great interest in chemical, physical, pharmaceutical, material, and environmental sciences. Understanding the intrinsic reason behind solubility behavior is a fascinating task. The theoretical relation between binary mutual solubility and liquid-liquid interfacial tension has been derived, where the partitioning of solute molecules between two coexisting liquid phases is determined by the transfer free energy per unit segment for a chain-like solute molecule expressed in terms of solute-solvent interfacial tension. This general theory of solubility is in good agreement with experimental results for binary mutual solubility and molar transfer free energy of solute molecules.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Osama K. M. Bashiar, R. E. Kroon, H. C. Swart, R. A. Harris
Summary: ZnO thin films with near-infrared emission were successfully fabricated using pulsed laser deposition under vacuum conditions, without the need for additional gases or implantation methods. The NIR emission was hypothesized to be caused by defects in the ZnO film due to high energy particle impacts on the sample surface.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
O. Stognei, A. Berezutskii, I. Anisimov, A. Deryabin
Summary: The influence of ZrOn matrix stoichiometry on the electrical and magnetoresistive properties of Fe-Zr-O nanocomposites has been studied. It was found that the magnetoresistive effect is not observed in composites with oxygen lack, while composites with oxygen excess show magnetoresistive effect and increased resistivity. Magnetoresistivity in composites with oxygen lack only appears after heat treatment. These results can be explained by the difference in the density of localized states in the oxide matrix of the composites and the ratio between two types of conductivity.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
Mehmet Bayirli, Aykut Ilgaz, Orhan Zeybek
Summary: The present study aims to understand the relationship between impedance characteristics and fractal behaviors. By producing neat and carbon nanotube doped composite specimens, the researchers investigated the electrical properties and surface heteromorphology using Nyquist plots and fractal analysis.
PHYSICA B-CONDENSED MATTER
(2024)
Article
Physics, Condensed Matter
M. I. Khan, Saddam Hussain, Muhamad Saleem, Fatimah Mohammed Alzahrani, Muhammad Siddique, M. S. Hassan, Allah Ditta Khalid, Munawar Iqbal
Summary: The sol-gel method was used to deposit Ti-doped MAPbBr3 films on FTO-glass substrates with different doping ratios (0%, 4%, and 6%). XRD analysis confirmed the cubic structure of all films, and the 4% Ti-doped film exhibited a large grain size, low band gap energy, and high refractive index. Solar cells fabricated using the 4% Ti-doped MAPbBr3 film showed improved performance in terms of current density, open circuit voltage, fill factor, and efficiency.
PHYSICA B-CONDENSED MATTER
(2024)
