Article
Materials Science, Multidisciplinary
Nandarapu Purushotham Reddy, Rompivalasa Santhosh, Jean Maria Fernandes, Reddivari Muniramaiah, Banavoth Murali, D. Paul Joseph
Summary: Undoped and Sb-doped BaSn(1-x)SbxO3 perovskite nanoparticles were synthesized using a peroxide-precipitate method and annealed at 900 degrees C. The nanoparticles exhibited a single-phase cubic structure, as confirmed by X-ray diffraction and transmission electron microscopy. Sb-doping led to a reduction in reflectance intensity and optical bandgap. Dye-sensitized solar cells fabricated using the Sb-doped nanoparticles showed improved power conversion efficiency and short-circuit current density, consistent with electrochemical impedance data.
Article
Materials Science, Multidisciplinary
M. Rekha, Renuka Yadav, L. Cindrella
Summary: Dye-sensitized solar cells (DSSCs) with Ni1-xFexMnO3 (x=0, 0.2, 0.5, 0.8, 1.0) perovskite nanoparticles as photoanodes are investigated in this study. The synthesized perovskites exhibit impressive optical properties and suitable surface morphologies for DSSC application. Compared to pristine NiMnO3-based DSSCs, the DSSCs with iron-incorporated NiMnO3 photoanodes show increased power conversion efficiency (PCE). Among the materials studied, Ni0.2Fe0.8MnO3-based DSSC achieves the highest PCE of 0.79% and a high open-circuit voltage (VOC) of 0.95 V. The optimized stoichiometry of perovskite composition is attributed to the alignment of the conduction band edge with the lowest unoccupied molecular orbital (LUMO) of N3 dye sensitizer. FeMnO3-based DSSC exhibits the highest VOC of 1.02 V. These findings provide a pathway for unconventional perovskite materials to be used as promising photoanodes in DSSCs, leading to increased VOC and PCE.
Review
Physics, Applied
Md Sariful Sheikh, Anurag Roy, Alo Dutta, Senthilarasu Sundaram, Tapas K. Mallick, T. P. Sinha
Summary: The dye-sensitized solar cell technology offers low-cost and simple fabrication procedures, but its overall performance still lags behind standard PV technologies. Nanostructured perovskite oxides show promise in overcoming the limitations of traditional DSSCs and improving their efficiency.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Chaoqiang Liao, Kaiwen Zeng, Hanlun Wu, Qingliang Zeng, Hao Tang, Lingyun Wang, Herbert Meier, Yongshu Xie, Derong Cao
Summary: The use of pillar[5]arene dyes can enhance the open-circuit voltage of DSSCs, while also inhibiting dye aggregation and charge recombination, leading to improved performance. Additionally, host-guest interactions with the electrolyte can further adjust the voltage and photocurrent of the DSSCs.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Sultana Rahman, Abdul Haleem, Muhammad Siddiq, Muhammad Khalid Hussain, Samina Qamar, Safia Hameed, Muhammad Waris
Summary: The financial progress of a country depends heavily on the energy sector, which is crucial for the growth and development of various industries. The use of renewable resources is essential to overcome the energy crisis and reduce the negative impact of hydrocarbon fuels on the environment. This review focuses on the dyes used in dye-sensitized solar cells (DSSC) and discusses the progress in both inorganic and natural dyes.
Article
Materials Science, Multidisciplinary
Xiaojuan Fan
Summary: A solution-based process to create flexible dye-sensitized solar cells on aluminum foils is reported. The process involves spin coating mesoporous TiO2 electrode on aluminum foil and incorporating a porphyrin dye and a perovskite halide salt as the hole transport material. A high photo-electric conversion efficiency is achieved.
JOURNAL OF MATERIALS RESEARCH
(2022)
Review
Engineering, Electrical & Electronic
J. Lakshmi Prasanna, Ekta Goel, Amarjit Kumar, Atul Kumar
Summary: Recent studies have shown that the growing demand for energy in industries has led to increased research interest in environmental and energy issues. This has resulted in intensified research on renewable energy sources such as solar cells, wind energy, and piezoelectric materials. This review article focuses on dye-sensitized solar cells (DSSCs) and specifically emphasizes perovskite solar cells (PSCs), particularly metal halide perovskite solar cells (MHPSCs). The article provides insights on the remarkable properties of MHPSCs, including defect tolerance, high absorption coefficients, low cost, and long lifetime, as well as their potential integration with diverse nanomaterials for low-cost solar cell applications. The article also highlights the evolution of perovskite solar cells from DSSCs and discusses the need for solid-state devices. Additionally, various applications of nanomaterials in DSSCs and PSCs are reviewed, and future research directions for different nanomaterials in perovskite solar cells are presented.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Review
Chemistry, Multidisciplinary
Ana Belen Munoz-Garcia, Iacopo Benesperi, Gerrit Boschloo, Javier J. Concepcion, Jared H. Delcamp, Elizabeth A. Gibson, Gerald J. Meyer, Michele Pavone, Henrik Pettersson, Anders Hagfeldt, Marina Freitag
Summary: Dye-sensitized solar cells (DSCs) and dye-sensitized photoelectrochemical cells (DSPECs) have seen a revival in recent years as they offer unique properties such as low cost, non-toxic materials, colorfulness, transparency, and efficiency in low light conditions. This review covers advancements in DSC technology over the past decade, including theoretical studies, characterization techniques, materials, applications, and commercialization efforts by various companies.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Takahito Shoji, Manabu Hagiwara, Shinobu Fujihara
Summary: Submicrometer-sized CeO2 crystals were synthesized by a hydrothermal reaction method, and their morphology varied among different shapes. The film formability and light-scattering ability of the CeO2 crystals coated on glass substrates depended on their morphology. The CeO2 light-scattering layer was found to enhance the short-circuit photocurrent density in DSSCs with nanoparticulate ZnO electrodes.
Article
Chemistry, Physical
Pawel Gnida, Pawel Jarka, Pavel Chulkin, Aleksandra Drygala, Marcin Libera, Tomasz Tanski, Ewa Schab-Balcerzak
Summary: The impact of various TiO2 nanostructures on the properties of photoanodes and the photovoltaic parameters of dye-sensitized solar cells was investigated. It was found that the addition of nanotubes to the photoanode resulted in the highest UV-Vis absorption, indicating a higher number of sensitizer molecules anchored to the titanium dioxide. This led to the highest power conversion efficiency in the solar cells containing nanotubes and a mixture of dyes with a co-adsorbent.
Article
Engineering, Environmental
Lin Yang, Pengfei Hou, Baoning Wang, Chunxiang Dall'Agnese, Yohan Dall'Agnese, Gang Chen, Yury Gogotsi, Xing Meng, Xiao-Feng Wang
Summary: This study enhances the photovoltaic performance and long-term stability of Cs2AgBiBr6 perovskite solar cells by sensitizing the TiO2 electron transport layer with D149 indoline dye and introducing Ti3C2Tx MXene nanosheets.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Yili Liu, Cheng Zhou, Can Cui, Xing Liu, Beili Pang, Jianguang Feng, Hongzhou Dong, Liyan Yu, Lifeng Dong
Summary: In this study, turmeric and carotene natural dyes are explored as additives to refine the crystal structure of CsPbBr3 film in inorganic perovskite solar cells. These dyes enhance light absorption and carrier transport, leading to improved efficiency and stability of the devices.
Article
Nanoscience & Nanotechnology
Wenruo Fang, Pan Hu, Zhenqiu Wu, Youfeng Xiao, Yunxia Sui, Dalong Pan, Guangxu Su, Mingwei Zhu, Peng Zhan, Fanxin Liu, Wei Wu
Summary: The study demonstrates the use of collapsible gold nanofingers to construct plasmonic dye-sensitized solar cells, which can enhance light absorption and power conversion efficiency by adjusting material thickness and structure. The results show that compared to traditional film-type solar cells, this plasmonic nanostructure can significantly improve the photovoltaic conversion efficiency.
Article
Chemistry, Multidisciplinary
Yuan Cai, Jian Cui, Ming Chen, Miaomiao Zhang, Yu Han, Fang Qian, Huan Zhao, Shaomin Yang, Zhou Yang, Hongtao Bian, Tao Wang, Kunpeng Guo, Molang Cai, Songyuan Dai, Zhike Liu, Shengzhong (Frank) Liu
Summary: Using the multifunctional molecule DFPDA as an additive, the stability issues of perovskite solar cells have been effectively addressed, resulting in high-quality films with an efficiency of 22.21% and significantly improved stability against moisture, heat, and light.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Applied
Haoran Zhou, Jung-Min Ji, Hwan Kyu Kim
Summary: Two porphyrin-based sensitizers, SGT-028 and SGT-029, were designed and synthesized via acceptor engineering for application in dye-sensitized solar cells (DSSCs). Despite similar absorption range and energy band gap to the reference dye SGT-021, SGT-029 achieved a higher power conversion efficiency (PCE) of 10.5% compared to SGT-028 with 9.1%, but was inferior to the benchmark porphyrin sensitizer SGT-021 (12.7%).
Article
Nanoscience & Nanotechnology
Deborah Ogulu, Pranjal P. Bora, Manisha Bihani, Sudripet Sharma, Tharique N. Ansari, Andrew J. Wilson, Jacek B. Jasinski, Fabrice Gallou, Sachin Handa
Summary: Phosphine ligand-free bimetallic nanoparticles catalyze highly selective reductions of various substrates under aqueous micellar conditions without impacting other functional groups. Multiple analysis methods provide evidence of metal-micelle binding and information about the morphology and chemical composition of the nanoparticles.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
William Arnold, Varun Shreyas, Yang Li, Milinda Kalutara Koralalage, Jacek B. Jasinski, Arjun Thapa, Gamini Sumanasekera, Anh T. Ngo, Badri Narayanan, Hui Wang
Summary: Solid-state lithium metal batteries with novel solid electrolytes have the potential for high energy density and safety. Sulfide-based argyrodite-class solid electrolytes are attractive due to their excellent ionic conductivity. This study synthesized F-doped argyrodites with dual dopants using a solvent-based approach and found that Li6PS5F0.5Cl0.5 exhibited the highest Li-ion conductivity and cycling performance at room temperature. The enhanced interfacial stability of Li6PS5F0.5Cl0.5 was attributed to the formation of a stable solid electrolyte interphase containing conductive species.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Mohammad Shahinur Rahaman, Sarttrawut Tulaphol, Md Anwar Hossain, Jacek B. Jasinski, Ning Sun, Anthe George, Blake A. Simmons, Thana Maihom, Mark Crocker, Noppadon Sathitsuksanoh
Summary: The study developed a dual acid phosphotungstic acid-encapsulated MOF catalyst for efficient conversion of biomass-derived glucose to 5-hydroxymethylfurfural. The catalyst design improved HMF selectivity and stability, providing insights for the design of new bifunctional solid acid catalysts.
Article
Chemistry, Physical
Mohammad Shahinur Rahaman, Sarttrawut Tulaphol, Anwar Hossain, Jacek B. Jasinski, Shashi B. Lalvani, Mark Crocker, Thana Maihom, Noppadon Sathitsuksanoh
Summary: Aluminum-containing metal-organic frameworks (Al-MOFs) show activity, selectivity, stability, and reusability for glucose isomerization in ethanol. Al-MOFs achieved high fructose selectivity at high glucose conversion, and the catalyst is stable and can be reused at least four times.
Article
Energy & Fuels
Jitendra Bahadur, Amir H. Ghahremani, Blake Martin, Sahar Pishgar, Mahendra K. Sunkara, Thad Druffel, Kaushik Pal
Summary: Rapid growth in photovoltaic performance of lead-halide-based perovskite solar cells has made them a potential candidate for emerging solar technology. In this study, low-temperature solution-processed Cu-doped SnO2 was demonstrated as an effective electron transport layer, improving device performance. The results showed that Cu-doped SnO2 has the potential to be a candidate for high-throughput and cost-effective manufacturing of perovskite solar cells.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Chemistry, Multidisciplinary
Usman O. Abu, Sharmin Akter, Bimal Nepal, Kathryn A. Pitton, Beth S. Guiton, Douglas R. Strachan, Gamini Sumanasekera, Hui Wang, Jacek B. Jasinski
Summary: This study presents a facile and straightforward method to synthesize phosphorene nanoribbons with good uniform widths via an electrochemical process in black phosphorus, demonstrating novel electronic properties. This approach is of significant importance for the preparation of narrow width structures.
Article
Nanoscience & Nanotechnology
Gaganpreet Kaur, Jacek B. Jasinski, Fabrice Gallou, Sachin Handa
Summary: A novel strategy has been developed to spontaneously form ligand-free Pd(0) nanoparticles from water- and air-sensitive Pd(2)dba(3) in water. These naturally formed NPs are more efficient than synthetic NPs formed under a hydrogen atmosphere and traditional NPs formed using the air-sensitive Grignard reagent.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Sudripet Sharma, Jacek B. Jasinski, Wilfried M. Braje, Sachin Handa
Summary: A simple and environmentally friendly method for synthesizing nanoparticles on the surface of the food additive HPMC and their application in organic solvent-free cycloaddition reactions were reported. The method showed high efficiency and the obtained products were of high purity.
Article
Energy & Fuels
Arjun Kumar Thapa, Brandon W. Lavery, Ram K. Hona, Nawraj Sapkota, Milinda Kalutara Koralalage, Ayodeji Adeniran, Babajide Patrick Ajayi, Muhammad Akram Zain, Hui Wang, Thad Druffel, Jacek B. Jasinski, Gamini U. Sumanasekera, Mahendra K. Sunkara, Masaki Yoshio
Summary: This article introduces a synthesis strategy for high-rate NMC cathodes, specifically LiNi0.2Mn0.6Co0.2O2 (NMC262), which exhibit high discharge capacities and excellent rate capabilities.
Article
Chemistry, Analytical
Prasadanie K. Adhihetty, Sujoy Halder, Jacek B. Jasinski, Xiao-An Fu, Michael H. Nantz
Summary: This article explores the non-covalent interactions between cations and z-systems and demonstrates their potential use as a sensing mechanism for detecting aromatic volatile organic compounds (VOCs). The results suggest that cation-z interactions could be a promising avenue for developing selective sensors for aromatic VOCs.
Article
Materials Science, Multidisciplinary
Nagalingam Rajamanickam, Kathirvel Ramachandran
Summary: In this study, a breakthrough in perovskite SrTiO3 was achieved by enriching the open circuit voltage and power conversion efficiency through Cr doping. The short-circuit current density (Jsc) for SrTi0.95Cr0.05O3 photoelectrodes was improved by 219% compared to pristine SrTiO3. Additionally, a power conversion efficiency of 5.62% was achieved in nanoparticles of SrTi0.95Cr0.05O3 with TiO2 scattering layer photoanodes. These impressive results were attributed to the higher dielectric constant and high conductivity of the material, paving the way for replacing traditional TiO2 as an electron transporter in future DSSC technology.
Article
Engineering, Chemical
Usman O. Abu, Dinushika Vithanage, Ashan Vitharana, Jacek B. Jasinski, Gamini Sumanasekera
Summary: This study investigates the effects of oxygen and humidity on black phosphorous (BP) and black arsenic phosphorous (AsxP1-x) flakes using Raman spectroscopy and in situ electric transport measurements. The results show that the incorporation of arsenic into the lattice of BP renders it more stable, with the degradation times increasing with arsenic concentration. Exposure to oxygen and moisture leads to decreased Raman peak intensities. Both BP and AsxP1-x are confirmed to be p-type semiconductors, with the thermoelectric power stabilizing more slowly for AsxP1-x compared to BP. The four-probe resistance stabilizes faster when exposed to air after being degassed in a vacuum due to charge transfer between oxygen redox potential and the Fermi energy of the semiconductors.
Article
Energy & Fuels
I. . John Peter, V. . Gayathri, V. . Ragavendran, N. . Rajamanickam, J. . Mayandi, P. Nithiananthi
Summary: Mixed-phase NiS@SnS@Ni3Sn2S2 nanostructures are synthesized and used as an electrocatalyst for various energy-related devices, showing improved performances when combined with multi-walled carbon nanotubes (MWCNT).
JOURNAL OF ENERGY STORAGE
(2023)
Article
Materials Science, Multidisciplinary
Sonia Juliana Calero-Barney, Antonis N. Andriotis, Madhu Menon, Mahendra Sunkara
Summary: Single crystal quality films of dilute GaSbxN1-x and GaBiyN1-y alloys were synthesized through a plasma-assisted vapor liquid phase epitaxy technique. The alloys possess gallium nitride wurtzite structure with slightly higher lattice parameter compared to pure gallium nitride. The substitution of anions in the alloy at the reported levels does not lead to significant changes in the band gap.
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)
