Article
Polymer Science
Yongzheng Zhao, Yan Li, Jiaxuan Li, Yifan Xiao, Wenmin Mu, Zhongwei Wang, Liang Song, Jinhong Yu
Summary: In this study, few-layer black phosphorus (BP)- and red phosphorus (RP)-modified epoxy resins were prepared and their flame-retardant properties were compared. It was found that both BP and RP improved the flame-retardant properties of the epoxy resins, with BP showing higher efficiency.
Article
Multidisciplinary Sciences
Yuchen Lei, Junwei Ma, Jiaming Luo, Shenyang Huang, Boyang Yu, Chaoyu Song, Qiaoxia Xing, Fanjie Wang, Yuangang Xie, Jiasheng Zhang, Lei Mu, Yixuan Ma, Chong Wang, Hugen Yan
Summary: The authors determine the exciton polarizabilities for 3- to 11-layer black phosphorus via frequency-resolved photocurrent measurements on dual-gate devices, and unveil the exciton response for higher-index sub-bands under the gate electrical field, as well as a carrier screening effect in thicker samples.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Mandeep Singh, Aviraj Ingle, Ana Gonzalez, Pyria Mariathomas, Rajesh Ramanathan, Patrick D. Taylor, Andrew J. Christofferson, Michelle J. S. Spencer, Mei Xian Low, Taimur Ahmed, Sumeet Walia, Susana Trasobares, Ramon Manzorro, Jose J. Calvino, Emilio Garcia-Fernandez, Angel Orte, Jose M. Dominguez-Vera, Vipul Bansal
Summary: Black phosphorus, a significant 2D material, tends to degrade under ambient conditions. This paper presents a more ambitious approach to improve the stability of black phosphorus by blocking oxidation and repairing it using the antioxidant molecule beta-carotene. The study suggests the potential of using natural antioxidant molecules to enhance the stability of other environmentally sensitive nanomaterials for technological and consumer applications.
Article
Nanoscience & Nanotechnology
Ho Young Jun, Sang Ouk Ryu, Se Hyun Kim, Jun Young Kim, Chih-Hung Chang, Si Ok Ryu, Chang-Ho Choi
Summary: The study introduces an efficient inkjet printing approach to fabricate patterned BP films, addressing ink formulation complexity and achieving high resolution. By integrating the printed BP pattern into a diode device, its potential for electronic devices is demonstrated.
ADVANCED ELECTRONIC MATERIALS
(2021)
Review
Energy & Fuels
Lianyi Shao, Jieduo Guan, Shige Wang, Lu Yu, Xiaoyan Shi, Zhipeng Sun, Fangyi Cheng
Summary: FLBP nanosheets have high charge storage capacity, large surface area, and adjustable intrinsic band gap. This article reviews the preparation of FLBP materials and their applications as anode materials in rechargeable batteries, discussing the relationship between structure and performance, as well as strategies to address challenges such as volume expansion and structural instability.
JOURNAL OF PHYSICS-ENERGY
(2021)
Article
Multidisciplinary Sciences
Feng Sheng, Chenqiang Hua, Man Cheng, Jie Hu, Xikang Sun, Qian Tao, Hengzhe Lu, Yunhao Lu, Mianzeng Zhong, Kenji Watanabe, Takashi Taniguchi, Qinglin Xia, Zhu-An Xu, Yi Zheng
Summary: In this study, synergistic effects between spin-orbit coupling and the Stark effect in centrosymmetric few-layer black arsenic are reported, leading to particle-hole asymmetric Rashba valley formation and exotic quantum Hall states controlled by electrostatic gating. These novel phenomena are rooted in the unique lattice structure and orbital symmetries of black arsenic, enabling gate-tunable manipulation of Rashba valleys for two-dimensional electronic systems with unconventional quantum Hall states.
Article
Chemistry, Multidisciplinary
Suk Woo Lee, Lu Qiu, Jong Chan Yoon, Yohan Kim, Da Li, Inseon Oh, Gil-Ho Lee, Jung-Woo Yoo, Hyung-Joon Shin, Feng Ding, Zonghoon Lee
Summary: The intercalation of copper in black phosphorus leads to anisotropic changes in electronic channels, transitioning from semiconductor to semimetal. The research also reveals the intercalation mechanism where copper atoms are inserted from top down, shedding light on the fundamental relationship between microstructure changes and properties in intercalated black phosphorus. The study demonstrates the potential for tailoring anisotropic 2D materials at the angstrom scale.
Review
Optics
Guowei Zhang, Shenyang Huang, Fanjie Wang, Hugen Yan
Summary: Black phosphorus, an emerging 2D semiconductor with strong interlayer interactions and tunable bandgaps, provides an ideal platform for investigating layer-dependent properties and the transition from 2D to 3D. This review comprehensively summarizes the fundamental physical properties of black phosphorus, emphasizing layer-dependence, and explores band structure engineering through various methods. The outlook for future research is also discussed.
LASER & PHOTONICS REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Florian Margot, Simone Lisi, Irene Cucchi, Edoardo Cappelli, Andrew Hunter, Ignacio Gutierrez-Lezama, KeYuan Ma, Fabian von Rohr, Christophe Berthod, Francesco Petocchi, Samuel Ponce, Nicola Marzari, Marco Gibertini, Anna Tamai, Alberto F. Morpurgo, Felix Baumberger
Summary: In this study, the electronic structure of 2-9 layer black phosphorus (BP) was determined by using a newly developed laser-based microfocus angle resolved photoemission (μ-ARPES) system. The results reveal ladder-like anisotropic, quantized subbands that deviate from the scaling observed in conventional semiconductor quantum wells. In addition, universal tight-binding parameters were determined to accurately describe the electronic structure for all thicknesses.
Article
Chemistry, Physical
Jingwen Wang, Shuilai Qiu, Liang Cheng, Weijian Chen, Yifan Zhou, Bin Zou, Longfei Han, Zhoumei Xu, Wenhao Yang, Yuan Hu, Lei Song
Summary: The integration of aryl diazonium modified few-layer black phosphorus with ultrafine yttrium oxide for reducing the fire hazard of epoxy resin showed significant improvement in flame retardancy, with peak heat release rate and total heat release reduced by 47.0% and 48.1% respectively. The addition of BP-NH-Y nanosheets also inhibited the diffusion of toxic gases during combustion, leading to epoxy composites achieving a UL-94 V-0 rating with only 1.0 wt% BP-NHY. This work holds promise for developing efficient covalent functionalized BP nanosheets for sustainable applications.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Michaela Sojkova, Igor Pis, Jana Hrda, Tatiana Vojtekova, Lenka Pribusova Slusna, Karol Vegso, Peter Siffalovic, Peter Nadazdy, Edmund Dobrocka, Milos Krbal, Paul J. Fons, Frans Munnik, Elena Magnano, Martin Hulman, Federica Bondino
Summary: It has been found that lithium can promote the epitaxial growth and horizontal alignment of MoS2, and lithiation can cause a vertical-to-horizontal reorientation in vertically aligned MoS2 films. The horizontally aligned Li-doped MoS2 exhibits good long-term stability and preserved chemical composition.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Xin Wang, Ming Ma, Xuewen Zhao, Peng Jiang, Yan Wang, Jiahong Wang, Jinying Zhang, Fuxiang Zhang
Summary: A VP/BP heterostructure was constructed using a phase engineering strategy, creating a well-matched heterophase interface to improve charge separation efficiency and photocatalytic activity for hydrogen evolution. This study highlights the feasibility of phase engineering and provides an alternative strategy to enhance the performance of photocatalysts.
Article
Chemistry, Multidisciplinary
Ning Wang, Nannan Mao, Zhien Wang, Xue Yang, Xi Zhou, Haining Liu, Shanlin Qiao, Xingfeng Lei, Junru Wang, Hua Xu, Xi Ling, Qiuyu Zhang, Qingliang Feng, Jing Kong
Summary: An electrochemical delamination strategy using weak Lewis acid intercalation has been developed to produce ultralarge FL-BP single-crystalline domains, significantly increasing the average domain size of crystals and demonstrating high hole mobility and broad photoresponse capability.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jens Matthies Wrogemann, Lukas Haneke, Thrinathreddy Ramireddy, Joop Enno Frerichs, Irin Sultana, Ying Ian Chen, Frank Brink, Michael Ryan Hansen, Martin Winter, Alexey M. Glushenkov, Tobias Placke
Summary: Dual-graphite batteries (DGBs) have gained attention as a low-cost technology for stationary energy storage. This study introduces a composite of black phosphorus with carbon (BP-C) as the negative electrode material for dual-ion batteries (DIBs) and investigates its electrochemical behavior.
Article
Chemistry, Multidisciplinary
Souvik Biswas, Joeson Wong, Supavit Pokawanvit, Wei-Chang David Yang, Huairuo Zhang, Hamidreza Akbari, Kenji Watanabe, Takashi Taniguchi, Albert V. Davydov, Felipe H. da Jornada, Harry A. Atwater
Summary: By characterizing and calculating the structure of the edges of black phosphorus (BP), researchers have discovered that certain atomic reconstructions on the edges can strongly confine excitons, resulting in unique emission features. They have also demonstrated efficient electrically-controlled emission from localized edge excitons. These findings provide insights for exploring nanoribbons and quantum dots as hosts for narrowband light generation.
Article
Chemistry, Physical
Yilv Guo, Yehui Zhang, Shuaihua Lu, Xiwen Zhang, Qionghua Zhou, Shijun Yuan, Jinlan Wang
Summary: In this study, a new two-dimensional ferromagnetic semiconductor material, monolayer Fe2Ti2O9, with moderate band gap and large magnetization strength, as well as a large piezoelectric coefficient, was predicted. This research provides a competitive candidate for multifunctional spintronics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Review
Chemistry, Physical
Zhanzhao Fu, Mingliang Wu, Yipeng Zhou, Zhiyang Lyu, Yixin Ouyang, Qiang Li, Jinlan Wang
Summary: This review provides an overview of recent progress in single-atom catalysts (SACs) for the electrochemical CO2 reduction reaction (CO2RR), focusing on the influence of catalyst supports such as graphene and conjugated macrocycle, as well as factors like heteroatom doping and bimetals on the activity and selectivity of the catalysts. Insights on the intrinsic connection between electronic structures and catalytic properties are summarized, along with discussions on the stability and dynamic structural changes of SACs under operating conditions. Challenges and perspectives for future development of efficient SACs based on graphene and conjugated macrocycle supports are also addressed.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Xinyu Chen, Qionghua Zhou, Jinlan Wang, Qian Chen
Summary: This study investigates the relationship between formation energy and structural parameters of graphene nanoscrolls through ab initio calculations. A quantified relationship is discovered, and further electronic structure calculations show the opening of bandgap in these nanoscrolls with high carrier mobilities. Molecular dynamic simulations confirm their structural stability at room temperature. This research provides insights into the rolling-up strategy and demonstrates the tunable properties of graphene nanoscrolls, expanding the scope of 2D materials research.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Zhanzhao Fu, Mingliang Wu, Qiang Li, Chongyi Ling, Jinlan Wang
Summary: The performance of supported catalysts is influenced by metal-support interactions, and quantifying the structure-activity relationship remains a challenge. This work constructs a simple descriptor to describe the effect of metal-support interaction on the nitrogen reduction reaction (NRR) activity. The descriptor accurately predicts the limiting potential (U-L) for the NRR without density functional theory calculations. The study also demonstrates the applicability of the descriptor to other materials and successfully selects promising NRR catalysts.
MATERIALS HORIZONS
(2023)
Article
Materials Science, Multidisciplinary
Xinyu Chen, Shuaihua Lu, Xinyang Wan, Qian Chen, Qionghua Zhou, Jinlan Wang
Summary: This article proposes a low-dimensional representation method (TAV) for building structure-property relationships, especially suitable for small datasets and diverse structures. The method is applied in the field of two-dimensional materials and can predict properties at a lower cost. In addition, the representation method is interpretable and provides a property-oriented search method.
PHYSICAL REVIEW MATERIALS
(2022)
Article
Chemistry, Physical
Zhilong Song, Qionghua Zhou, Shuaihua Lu, Sae Dieb, Chongyi Ling, Jinlan Wang
Summary: In this study, an adaptive design framework is developed to search for optimal materials starting from zero data and with minimal density functional theory (DFT) calculations. It is successfully applied to rapidly identify desired alloy catalysts for CO2 activation and methanation.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Zhilong Song, Qionghua Zhou, Shuaihua Lu, Sae Dieb, Chongyi Ling, Jinlan Wang
Summary: In this study, an adaptive design framework is proposed to search for optimal materials starting from zero data and with as few DFT calculations as possible. This framework integrates automatic density functional theory (DFT) calculations with an improved Monte Carlo tree search via reinforcement learning algorithm (MCTS-PG). As a successful example, it is applied to rapidly identify desired alloy catalysts for CO2 activation and methanation within 200 MCTS-PG steps. Seven alloy surfaces with high theoretical activity and selectivity for CO2 methanation are screened out and further validated by comprehensive free energy calculations. Our adaptive design framework enables the fast computational exploration of materials with desired properties via minimal DFT calculations.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Zhilong Song, Xiao Wang, Fangting Liu, Qionghua Zhou, Wan-Jian Yin, Hao Wu, Weiqiao Deng, Jinlan Wang
Summary: Developing activity descriptors using machine learning can accelerate the design of high-performance and low-cost electrocatalysts. In this study, a interpretable machine learning method, multi-task symbolic regression, was used to construct a universal activity descriptor for evaluating the oxygen evolution reaction (OER) performance of oxide perovskites. The descriptor achieved high accuracy and generalization ability. By utilizing this descriptor and Bayesian-optimized parameters, promising double perovskites with excellent OER activity were predicted and evaluated. The synthesis and characterization of the two best-performing nickel-based perovskites were successfully conducted experimentally. This work presents a new approach for machine learning-based material design by utilizing multiple data sources.
MATERIALS HORIZONS
(2023)
Article
Materials Science, Multidisciplinary
Tingbo Zhang, Zhaobo Zhou, Yehui Zhang, Xianghong Niu, Ming-Gang Ju, Qian Chen, Jinlan Wang
Summary: This study reveals that the high photovoltaic effect of nanotubes is achieved through quantum coherence between the band edges, resulting in enhanced carrier lifetime and increased photocurrent. Furthermore, it is found that WS2 nanotubes exhibit the longest carrier lifetime at a certain diameter.
Article
Materials Science, Multidisciplinary
Guitao Zhang, Kangjun Lu, Yifan Wang, Haowei Wang, Qian Chen
Summary: This paper investigates the mechanical and electronic properties of alpha-M2X3 (M = Ga, In; X = S, Se) monolayers, finding them to have excellent carrier mobility and low Young's modulus, maintaining good performance under strain. The 2D alpha-M2X3 materials are promising candidates for flexible electronic devices due to their excellent ductility and strain-promoted electronic properties.
Article
Engineering, Electrical & Electronic
Chenghuan Jiang, Kangjun Lu, Ruqian Wang, Qian Chen, Jinlan Wang
Summary: This study predicts the ferromagnetic ground state of the CrGa2Te4 monolayer with an alpha-FeGa2S4-1T phase and reveals its ferromagnetic half-metal properties and high Curie temperature. The further splitting of Cr orbitals results in a high-spin configuration of Cr2+ with an out-of-plane easy axis. This work expands our understanding of magnetic phenomena in 2D octahedral coordinated crystals.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yilei Wu, Shuaihua Lu, Ming-Gang Ju, Qionghua Zhou, Jinlan Wang
Summary: The study successfully combined advanced machine learning techniques and first-principles calculations to rapidly screen out 204 stable lead-free MDHOIPs with optimal bandgaps, among a total of 11,370 candidates. Two representative MDHOIP candidates, MA(2)GeSnI(4)Br(2) and MA(2)InBiI(2)Br(4), were highlighted for their suitable bandgaps, carrier effective masses, exciton binding energies, light absorption, and stability.
Article
Chemistry, Multidisciplinary
Zhanzhao Fu, Qiang Li, Xiaowan Bai, Yuhao Huang, Li Shi, Jinlan Wang
Summary: This study introduces a simple coordination regulation method of the active site to improve the efficiency of CO2 conversion, demonstrates the excellent catalytic performance of NiN3B in CH4 conversion, and highlights the synergistic dual active sites formed between non-metal B and metal Ni atoms in catalysis.
Article
Chemistry, Physical
Shiyan Wang, Xiaowan Bai, Qiang Li, Yixin Ouyang, Li Shi, Jinlan Wang
Summary: It has been demonstrated that two-dimensional Cu2S monolayers are promising photocatalysts for the reduction of CO2 into C2H5OH. The calculations show that these catalysts can greatly enhance the conversion efficiency of C2H5OH, while exhibiting satisfactory visible light absorption and band edge positions.
NANOSCALE HORIZONS
(2021)
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)
