Article
Chemistry, Physical
Aaron Doring, Yuan Xiong, Yanxiu Li, Julian Schneider, Sergei A. Cherevkov, Elena Ushakova, Andrey L. Rogach
Summary: Composite nanospheres were developed with nanometer-sized luminescent carbon dots incorporated in a polyhedral oligomeric silsesquioxane (POSS) matrix. The nanospheres emit in the blue region with high photoluminescence quantum yield (PL QY) and their optical transitions are dominated by the carbon domains inside the POSS matrix.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Polymer Science
Pen Yiao Ang, Marko Cehovski, Frederike Lompa, Christian Haenisch, Dinara Samigullina, Sebastian Reineke, Wolfgang Kowalsky, Hans-Hermann Johannes
Summary: Organic thin-film lasers are considered potential light sources with advantages such as low cost, high performance, and color tunability. This study tested the feasibility of using organic dye-doped PMMA as an organic dye laser and found the best sample design model.
Article
Construction & Building Technology
Wentong Wang, Aimin Sha, Zhen Lu, Meng Jia, Wei Jiang, Zhuangzhuang Liu, Dongdong Yuan
Summary: Self-luminescent cement-based composite materials (SLCCM) have been developed for environmental protection pavement and smart pavement applications by doping luminescent powder and reflective powder into cement-based materials. Mechanical and luminous properties, as well as the luminescence mechanism, were evaluated to determine the optimal mix for road pavement utilization.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Materials Science, Ceramics
Jie Gong, Peng Du, Weiping Li, Laihui Luo
Summary: A binary composite ceramic NBT:Er-0.3CT:Pr was fabricated via conventional solid state reaction, with investigations on the effects of sintering temperature on microstructure and electrical properties. It was found that macro long-ranged ferroelectric order cannot be induced by electric field in the composite ceramics, but visible ferroelectric switching can be observed under local electric field.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Engineering, Electrical & Electronic
Farah Deeba, Ankit K. Gupta, Vaibhav Kulshrestha, Minal Bafna, Ankur Jain
Summary: The effect of different concentrations of zinc oxide on the dielectric properties of composite films was studied. It was found that increasing the zinc oxide content significantly increased the dielectric constant, AC conductivity, and loss tangent. A direct correlation between the dielectric parameter and the mean relaxation time of polymer chain segmental dynamics was observed, suggesting that the dielectric properties of these materials can be tailored by varying the amount of metal oxide filler for use in microelectronics.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Peiyao Qi, Wang Shuo, Ju Ye, Zhongli Tang, Qu Jin, Junping Zheng, Xiaofei Liu
Summary: Polyacrylamide nanospheres can improve oilfield water flooding and reservoir stimulation, but their strength is not sufficient for practical production. Therefore, SiO2/PAM composite nanospheres were synthesized in this study to meet the needs of profile control and water shutoff in oilfields. The rheological properties of polyacrylamide nanospheres and SiO2/PAM composite nanospheres were compared, showing significant differences.
Article
Materials Science, Characterization & Testing
Kanchan Upadhyay, Sabu Thomas, Rini Thresia Varghese, Raunak kumar Tamrakar
Summary: Gd2O3:Er3+ nanophosphor powders were synthesized by the solution combustion method and incorporated into polymer solutions to obtain nanocomposites. Various characterization techniques were used to analyze the samples, showing different effects at different phosphor loading levels.
Article
Materials Science, Ceramics
Elena Gorokhova, Olga Dymshits, Ivan Venevtsev, Liza Basyrova, Irina Alekseeva, Alexander Khubetsov, Mikhail Baranov, Marina Tsenter, Aleksander Zhilin, Sergey Eron'ko, Eugenia Oreschenko, Faina Muktepavela, Karlis Kundzins, Pavel Loiko
Summary: In this study, zinc oxide optical ceramics containing 0-2 wt% ytterbium were prepared, with Yb2O3 acting as an inhibitor for ZnO grain growth. The ceramics exhibit transmittance up to 60% in the visible region and their infrared transmission is determined by free charge carrier absorption. Additionally, under X-ray excitation, intense luminescence bands are observed in the blue and green regions, with Yb2O3 causing a redistribution of luminescence intensity and faster emission decay.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Polymer Science
Vinayak S. Bhat, S. B. Kapatkar, N. H. Ayachit, Ishwar Naik, M. S. Murari
Summary: Composite films of PFO/PMMA with various PFO concentrations were prepared and studied for their optical properties. The segregation of PFO increased with doping concentration, while the absorption spectrum intensity, band gap values, Urbach energy values, and refractive index all showed changes with doping concentration, stabilizing around 1 wt% of PFO. This study demonstrates the impact of doping concentration on the optical properties of PFO/PMMA composite.
Review
Chemistry, Multidisciplinary
Guilherme Arroyos, Caroline M. da Silva, Lucas B. Theodoroviez, Jonatas E. M. Campanella, Regina C. G. Frem
Summary: Coordination polymers, including infinite coordination polymers (ICPs), exhibit various properties and have potential applications in sensing probes, light-emitting devices, and bioimaging. However, challenges need to be addressed for their future commercial usage.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Engineering, Manufacturing
Aiping Lin, Yang Zhang, Danjiao Zhao, Yu Wu, Shufen Wang, Jianmin Li, Lanlan Fan, Shixian Xiong, Lei Cao, Feng Gu
Summary: Flexible techniques for producing high-resolution and moderate efficiency luminescent patterns at the microscale have potential importance for various applications. An innovative droplet-based aerosol jet printing procedure has been developed for creating brightly luminescent patterns of europium-doped yttrium oxide (Y2O3:Eu3+) inorganic phosphors at a low calcining temperature. The procedure synchronized droplet deposition behavior and microreactions to effectively create microscale luminescent patterns. The printed patterns exhibited red emission similar to those calcined at 1000 degrees C, suggesting future applications in flat panel display systems.
ADDITIVE MANUFACTURING
(2023)
Article
Materials Science, Characterization & Testing
Shih-Chen Shi, Chi-Feng Lin, Chi-Fan Liu, Tao-Hsing Chen
Summary: Cellulose nanocrystals and cellulose nanofibers extracted from rice stalks effectively improve the tribological and mechanical properties of poly-methyl methacrylate. The addition of these reinforcements reduces wear volume and enhances flow stress. The cellulose nanofibers show better enhancement effect due to their longer length and higher aspect ratio, improving the structural integrity of the composites.
POLYMERS & POLYMER COMPOSITES
(2022)
Article
Multidisciplinary Sciences
Mohammad Reza Yari, Mohammad Sadegh Zakerhamidi, Hamid Ghomi
Summary: The effects of argon gas glow discharge plasma on the surface of DR1 dye-loaded PMMA polymer films were investigated. The plasma treatment immobilized the dye on the polymer surface through the activation of the surface and the formation of covalent bonds. Additionally, the plasma modification altered the surface topography, adjusted the dye conformation, and created new polar components, resulting in enhanced dye adsorption to the polymer matrix. This study suggests a novel and cost-effective technique for the fabrication of poly(MMA-co-DR1) copolymer with a homogeneous surface layer.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Electrical & Electronic
Ankita Subhrasmita Gadtya, Srikanta Moharana
Summary: Three-component PMMA-NaNbO3-starch percolative composites with enhanced dielectric and electrical properties were prepared. The improved electrical properties of the composites can be attributed to the synergistic effect of the NN ceramics and conductive starch particles within the polymer matrix.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Anees Ur Rehman, Najeeb Ullah, Muhammad Abid Saeed, Usman Khan Khalil
Summary: In this study, the concept of localized surface plasmon resonance was used to enhance the absorption efficiency of dye-sensitive solar cells. Different shapes of aluminum nanoparticles were investigated, and a three-dimensional model was developed using COMSOL Multiphysics. The results showed that aluminum nanoparticles with spherical, rod and triangle morphologies had higher absorption capability compared to aluminum-free nanoparticles. Additionally, the use of core-shell Al@SiO2 nanoparticles in a bilayer photoanode nanostructure demonstrated improved absorption performance.
Article
Chemistry, Physical
Haitao Zhang, Yijia Geng, Shuping Xu, Weiqing Xu, Yu Tian, Jie Yu, Wenyuan Deng, Bo Yu, Yu Liu
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Multidisciplinary
Ji-Chao Cheng, Ling-Yun Pan, Xiao-Li Huang, Yan-Ping Huang, Ying-Hui Wang, Shu-Ping Xu, Fang-Fei Li, Zhi-Wei Men, Tian Cui
Summary: This study explores the effect of interparticle spacing on CdSe/ZnS quantum dots (QDs) and finds that reducing the spacing has a stronger impact on exciton relaxation than enhancing the quantum confinement effect. Adjusting interparticle spacing using high pressure may expand the application of QDs further.
Article
Chemistry, Analytical
Qian Zhang, Yu Tian, Zihui Liang, Zizhun Wang, Shuping Xu, Qiang Ma
Summary: In this study, a DNA-mediated Au-Au dimer was constructed to enhance the ECL signal of GCN QDs. By regulating the dimer gap distance, the signal amplification effect was achieved, showing good analytical performance for detecting breast cancer susceptibility gene 1 with a detection limit of 0.83 fM.
ANALYTICAL CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Yi Wang, Fanzhou Lv, Jiaxu Chen, Yudie Huang, Shijia He, Weiqing Xu, Shuping Xu, Wenxin Wang
Summary: This work introduces a lithography-free approach of undervoltage oxidation (UVO) to regulate high symmetry points in the reciprocal space of a dielectric alumina superlattice. Embedding subunit cells at high symmetry points results in degenerate energy changes under normal and off-normal excitations. Systematic characterizations of the alumina membrane's dynamic evolution are presented, along with changes in the pore array structure.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Xiaozhang Qu, Dan Sun, Yuqi Cheng, Jiafeng Wang, Yan Wang, Weiqing Xu, Guohua Qi, Shuping Xu
Summary: The study used smart nanoprobes to discriminate and monitor the dynamic expression of PD-L1, revealing rapid modulation of PD-L1 content on cell membranes under external electrostimulation. The findings suggest that external electrostimulation may offer a superior approach for regulating PD-L1 compared to chemical drugs, showing potential clinical application value. This versatile strategy could be applied to many membrane protein-related studies, providing a practical method for assessing molecular profiles of cell membrane proteins in response to external stimuli.
Article
Engineering, Environmental
Peilin Wang, Yixin Nie, Yu Tian, Zihui Liang, Shuping Xu, Qiang Ma
Summary: In this study, a surface enhanced electrochemiluminescence (SEECL) sensing system based on whispering gallery mode was developed, utilizing Ni-doped MoS2 quantum dots as ECL emitters. This system incorporated Au nanoparticles and SiO2 dielectric microspheres to enhance ECL intensity, allowing for quantification of the K-RAS gene with a detection limit of 0.3 fM.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Yu Tian, Weiqing Xu, Kongshuo Ma, Lili Cong, Yanting Shen, Xiaoxia Han, Chongyang Liang, Lijia Liang, Guohua Qi, Yongdong Jin, Shuping Xu
Summary: A novel surface-enhanced Raman scattering (SERS) strategy, based on evanescent field excitation, is proposed for label-free analysis of membrane proteins in situ. By wrapping metal nanoparticles around extracted cell membranes and utilizing leaky mode of a waveguide, high-quality SERS profiles of membrane proteins are achieved. This method has broader applicability in establishing the Ramanomics of membrane proteins and revealing exact changes during physiological processes.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Engineering, Environmental
Jing Jin, Wei Song, Jiaqi Wang, Linjia Li, Yu Tian, Shoujun Zhu, Yuping Zhang, Shuping Xu, Bai Yang, Bing Zhao
Summary: A uniform and small-sized core-shell Ag/oxidized graphene quantum dots (o-GQDs) nanohybrid with enhanced SERS sensitivity and biocompatibility was prepared for intracellular SERS analysis and potential cancer cell therapy.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Lili Cong, Jiaqi Wang, Xinli Li, Yu Tian, Shizhi Xu, Chongyang Liang, Weiqing Xu, Weigang Wang, Shuping Xu
Summary: A microfluidic-based surface-enhanced Raman scattering (SERS) platform has been developed for analyzing cytokines secreted by single cells, demonstrating the importance of tracking specific cell-secreted cytokines and providing guidance for cancer early diagnosis and single-cell secretion research.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Applied
Jing Wang, Wanlu Yin, Shuping Xu, Xiangxin Xue, Lina Zhao, Weiqing Xu
Summary: This study proposes a new concept of using rare-earth ions as surface dopants for organic core-shell heterostructures. By doping Eu(III) and Tb(III) rare-earth ions on the surface of an organic cocrystal, a dual-color emission core-shell structure is achieved, and its optical behaviors are investigated. This research offers potential applications in optical wave-guides and optical logic gates.
Article
Chemistry, Multidisciplinary
Ning Chu, Lili Cong, Jing Yue, Weiqing Xu, Shuping Xu
Summary: This study developed a supramolecular fluorescent imaging probe based on host-guest assembly to target and illuminate mitochondria, allowing for investigation of the dynamic transformation of supramolecular assemblies inside cells.
Article
Engineering, Environmental
Peilin Wang, Zihui Liang, Junyi Zhao, Yixin Nie, Shuping Xu, Qiang Ma
Summary: A polarization-resolved surface plasmon coupling electrochemiluminescence (ECL) strategy based on orientational Au nanobipyramids (Au NBPs) patterned structures was developed. By controlling the patterned structures of Au NBPs, the polarized emission of SnS2 quantum dots was modulated, enabling the analysis of miRNA-21 and miRNA-205 expression levels in tumor tissues of triple negative breast cancer patients.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Huimin Wang, Ailing Su, Chengxin Bao, Chongyang Liang, Weiqing Xu, Jingjing Chang, Shuping Xu
Summary: A surface-enhanced Raman scattering (SERS) strategy combined with a CRISPR/Cas12a system is designed for amplification-free gene detection of African swine fever virus (ASFV). The method achieves high sensitivity and selectivity in liquid-phase detection, and is mainly used for on-site inspection and quick testing of gene samples.
Article
Materials Science, Multidisciplinary
Aisen Li, Fengjiao Li, Yi Chen, Yujun Xie, Xiaoning Li, Xiaobing Liu, Shuping Xu, Weiqing Xu, Jinfeng Wang, Zhen Li
Summary: The photophysical properties of N-conjugated materials in aggregate states are heavily dependent on molecular arrangements. This research demonstrates the regulation of molecular packing for optimizing optical properties, especially N-N interactions. Triphenylene is used as a model to show the continuous regulation of molecular packing and the emission enhancement attributed to strengthened N-N interactions under pressure.
ACS MATERIALS LETTERS
(2022)
Article
Biochemical Research Methods
Dan Sun, Fanghao Cao, Xuan Yi, Hongyan Zhu, Guohua Qi, Weiqing Xu, Shuping Xu
Summary: Analysis of single-cell microRNA is essential for revealing genetic heterogeneity at the cell level. In this study, SERS and fluorescence imaging technology were used to achieve direct in situ, nondestructive, and highly sensitive detection of a small number of microRNA-21 (miR-21) in a single intact living cell. A multifunctional plasmonic nanoprobe was designed, allowing for highly sensitive and reliable detection of miR-21 through dual-signal switching. The combination of SERS and microdroplets encapsulation provided a feasible way to determine miR-21 secreted by single cells without cell lysis and time-consuming isolation steps. The research accurately and quantitatively evaluated the cellular heterogeneity in miR-21 expression, providing important reference information for understanding the effects of miRNAs on cancer diseases at the single-cell level.
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)
