Article
Chemistry, Organic
Qi Qu, Meigui Fu, Caixia Lin, Yanhou Geng, Yuanming Li, Yaofeng Yuan
Summary: Two o-carborane-based pi-conjugated macrocycles were synthesized with unique porous supramolecular structures, exhibiting micropore characteristics. These macrocycles show aggregation-induced emission and have potential as sensors for nitroaromatics based on fluorescence quenching phenomenon. This work provides a new design strategy for o-carborane macrocyclic molecules with excellent photophysical properties.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Applied
Ningning Zhou, Juanfang Zhou, Yanpeng Lu, Defang Xu, Xingliang Liu
Summary: This study designed and synthesized two novel D-A type tetraphenylethene-based fluorophores, which exhibited good solid-state luminescence and remarkable aggregation-induced emission behavior. They also displayed high-contrast mechanofluorochromic properties.
Article
Chemistry, Multidisciplinary
Yongdong Ma, Xueyan Wu, Yan Lv, Xiaoping Jin, Huici Shan, Jixi Guo
Summary: The strategy of linking multiple weak AIE-active anthracenyl-o-carborane dyads was proposed to enhance solid-state luminescence efficiency. Various substituent groups can regulate optical properties, and molecules CA1, CA2, and CA3 are all AIE-active. The emission efficiency of the multiple dyads was significantly higher than that of the single dyad, indicating potential for enhancing luminous efficiency.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Qiang Liu, Bei-Bei Zhang, He Sheng, Sen Qiao, Zhi-Xiang Wang, Xiang-Yu Chen
Summary: The visible-light-induced photoreduction of carborane phosphonium salts under blue light irradiation provides a simple and effective method for accessing carbon-centered carboranyl radicals without the use of transition metals and photocatalysts. The utility of this method is demonstrated by the successful preparation of carborane-oxindole-pharmaceutical hybrids through radical cascade reactions. Computational and experimental studies suggest that the carbon-centered carboranyl radicals are generated through single-electron transfer of photoactive charge-transfer complexes between the salts and the additive potassium acetate.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Chun-Li Song, Zheng Li, Jia-Rui Wu, Tong Lu, Ying-Wei Yang
Summary: This study reports on the photoluminescence properties of a macrocycle modified with donor-acceptor motifs. The macrocycle exhibits unexpected intramolecular through-space charge transfer and aggregation-induced emission properties, with the ratio of different emissions being easily affected by the environment. Additionally, the macrocycle also displays a pronounced color-changing behavior in the presence of common nitrile vapors with varying hydrocarbon chain lengths.
CHEMISTRY OF MATERIALS
(2022)
Article
Multidisciplinary Sciences
Jianyu Zhang, Parvej Alam, Siwei Zhang, Hanchen Shen, Lianrui Hu, Herman H. Y. Sung, Ian D. Williams, Jianwei Sun, Jacky W. Y. Lam, Haoke Zhang, Ben Zhong Tang
Summary: Researchers have designed clusteroluminogens that exhibit multiple emissions and white-light emission in the crystalline state by manipulating through-space interactions. The intensity ratio of these emissions can be easily controlled by changing the halide atom and excitation wavelength.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Ningchao Liu, Xiaojuan Lv, Bentian Xiao, Daiki Kuzuhara, Peifeng Mei, Naoki Aratani, Hiroko Yamada, Fengxian Qiu, Jianming Pan, Songlin Xue
Summary: Mono-/diboron complexes with saddle-shaped molecular conformations were synthesized from porphyrins(2.1.2.1). The boron complexes exhibit unique structure-dependent photophysical properties, with diboron complex 3b showing aggregation-induced emission (AIE) in the deep-red region, which is the first case of boron porphyrinoid complex showing AIE emission in decades.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Applied
Hyung-Ha Park, Puttavva Meti, Young-Dae Gong
Summary: A series of pyrazine-based bipodal molecules with multi-stimuli response were synthesized via Suzuki and Sonogashira cross-coupling reactions, showing different optical, thermal, and electrochemical properties depending on modifications to their endcapped donor-acceptor units and ?-conjugation extension. The molecules emit fluorescence from blue to orange depending on the electron-donating substituents, and exhibit solvent-dependent emission with a linear correlation on Dimroth-Reichardt plots. The study also found enhanced emission in aggregates, suggesting potential for developing promising multi-stimuli responsive fluorescent materials.
Article
Chemistry, Inorganic & Nuclear
Zhaojin Wang, Juewen Zhao, Mohd Muddassir, Rongfeng Guan, Silu Tao
Summary: The study found that Janus carboranes have low luminescence efficiency in solutions, but the efficiency increases in aggregates and solid, showing AIE enhancement. By doping with 1,3-bis(carbazol-9-yl)benzene (mCP), the TADF properties of Cb-1/2/3 were successfully restored, achieving high external quantum efficiency and maximum brightness in organic light-emitting diodes.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Xiaokai Xu, Luoqi Mo, Yadong Li, Xiaoqin Pan, Guangqi Hu, Bingfu Lei, Xuejie Zhang, Mingtao Zheng, Jianle Zhuang, Yingliang Liu, Chaofan Hu
Summary: This study reports the synthesis of carbon dots (CDs) with multicolor aggregation-induced emission, achieving a shift in fluorescence from green to red by increasing the C(sic)N content. The enhancement of ICT efficiency and fluorescence quantum yield by adjusting the C(sic)N content has led to applications in pattern encryption, white-LED devices, fingerprint detection, and protection against UV hazards for plants.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Applied
Qian Yan, Runhua Yao, Guozheng Li, Junjie Guo, Bo Zhao, Jie Li, Ruiqiang Hang, Hua Wang
Summary: In this study, two red emitters TPA-QxPy and Cz-Ph-QxPy with aggregation-induced emission characteristics were designed and synthesized. TPA-QxPy showed a strong charge transfer state, while Cz-Ph-QxPy had intramolecular hydrogen bonds to form hybridized local and charge-transfer state. Cz-Ph-QxPy-based organic light-emitting diode achieved highly efficient red emission with external quantum efficiency of 7.56% at 580 nm.
Article
Chemistry, Multidisciplinary
Qin Zhou, Miao Zhu, Wei Chen, Na Qin, Yujie Liu, Weihua Zhang, Xiang Li, Ye Sha, Hong Yan
Summary: Z/E isomerism is an important phenomenon in chemistry, but only a few TPE derivative isomers can be separated, limiting the understanding of structure-performance relationships. The introduction of phenyl carborane substituents enhances the solid-state fluorescence quantum yields of the isomers.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Applied
Xiucun Feng, Ningning Zhou, Juanfang Zhou, Weidong Zhang, Chao Zhang, Xingliang Liu, Defang Xu
Summary: Two novel donor-acceptor type molecules, XA-CE-CAR and XA-CE-BCAR, were synthesized and showed effective solid-state emissions with distinct aggregation-induced emissions. The emission colors and wavelengths of the compounds could be changed through grinding and vapor fuming, attributed to the transformation between crystalline and amorphous states. The redshifts in photoluminescence spectra were caused by reduced band gaps and increased pi-pi interactions and orbital overlap between neighboring molecules.
Article
Chemistry, Applied
Md Hasanul Haque, Honglae Sohn
Summary: In this study, we synthesized and characterized novel pi-sigma* conjugated 1,4-bis(1-methyl-2,3,4,5-tetraphenyl-1-silacyclopentadienyl)benzene nanoaggregates with aggregation-induced emission enhancement (AIEE) property for the detection of nitroaromatic compounds. The pi-sigma* conjugated nanoaggregates showed excellent sensitivity for sensing explosives.
Article
Chemistry, Multidisciplinary
Junki Ochi, Kazuo Tanaka, Yoshiki Chujo
Summary: The unique solid-state excimer emission of three types of acridine-tethered o-carboranes with variable degrees of methylation was reported. The emitted light colors were drastically changed by the steric effect of the methyl groups, with a strong correlation found between the pi-overlapping and excimer character. Variable-temperature PL measurements revealed that these PL species should be in thermal equilibrium at room temperature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Joori Jung, Byeong Soo Shin, Jeong Won Kang, Won-Sik Han
Summary: In efforts to develop hydrogen-rich organic materials for renewable energy, four new materials based on N-alkyl-bis(carbazole) were designed and prepared, showing varying hydrogen adsorption/hydrogen desorption reactivity based on the length of the alkyl chain. These materials demonstrated complete hydrogenation reactions under ruthenium catalyst and thermal stability without decomposition at certain temperatures.
Article
Materials Science, Multidisciplinary
Sunhee Lee, Soyoung Kwak, Kang-Kyun Wang, Won-Sik Han
Summary: This study systematically investigated the photophysical and electrochemical properties of three difluoroboron dibenzoylmethane compounds with varying substituents, demonstrating the relationship between structure and properties. The choice of substituent could control energy band gaps and emission colors, while the excited state behaviors influenced fluorescence properties.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Applied
Sohee Lee, Seung-Hwan Kim, Sunhee Lee, Yeeun Lee, Yong Sup Lee, Kwang-Hwan Yang, Kang-Kyun Wang, Won-Sik Han
Summary: Stimuli-responsive materials based on donor-acceptor systems show potential for sensing applications, with two push-pull-type molecules, CzPyr-H and CzPyr-OMe, demonstrating absorption and emission property switching for volatile acid sensing.
Article
Materials Science, Multidisciplinary
Sooyeon Kim, Chihyung Lee, Sunhee Lee, Seung Hun Baek, Doo-Hyun Ko, Won-Sik Han
Summary: This study investigated the effects of introducing ortho-terphenyl groups at the 1- and 7-bay positions of PDI on its photophysical and electrochemical properties. Through density functional theory calculations, it was found that PDI-TP exhibited a highly twisted structure and increased solubility, which contributed to its enhanced performance as a third component in ternary OSCs, resulting in significantly improved power conversion efficiency.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Metallurgy & Metallurgical Engineering
Kaneharu Okuda, Kwangsik Han, Ryosuke Kainuma
Summary: The recrystallization behavior in the interfacial region between two cold-rolled IF steel sheets and an aluminum sheet after heat treatment at 650 degrees C was investigated. The growth of the tongue-like eta phase significantly affected the recrystallization behavior of the IF steel.
ISIJ INTERNATIONAL
(2022)
Article
Energy & Fuels
Jin Hyuck Heo, Sunhee Lee, Hyong Joon Lee, Jin Kyoung Park, Yeeun Lee, Seok Yeong Hong, Won-Sik Han, Sang Hyuk Im
Summary: This study investigates the synergistic effect of perylene diimide (PDI) and diphenyl-o-carboranyl (Cb) in inverted perovskite solar cells (PSCs). The introduction of PDI-Cb interlayer significantly enhances the efficiency of PSCs by promoting charge extraction and reducing carrier recombination. Moreover, the unencapsulated PSC with PDI-Cb interlayer exhibits good photo- and thermal stability.
Article
Oncology
Il Kwon Bae, Jun-Yong Shin, Jae-Hak Son, Kang-Kyun Wang, Won-Sik Han
Summary: We investigated the bactericidal effects of two types of photoinduced reactive oxygen species (ROS) on bacteria with distinct surface charges. The results showed that one type of ROS was significantly dependent on the surface charge of the bacteria, which could be significant in enhancing treatment efficiency in the clinical field.
PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY
(2022)
Article
Chemistry, Multidisciplinary
Jungkweon Choi, Siin Kim, Mina Ahn, Jungmin Kim, Dae Won Cho, Doyeong Kim, Seunghwan Eom, Donghwan Im, Yujeong Kim, Sun Hee Kim, Kyung-Ryang Wee, Hyotcherl Ihee
Summary: This study investigates the effect of the molecular configuration of two covalently linked dimers on singlet fission dynamics using steady-state and time-resolved spectroscopies. The results demonstrate the significant role of molecular configuration in the singlet fission process.
COMMUNICATIONS CHEMISTRY
(2023)
Article
Chemistry, Applied
Yeeun Lee, Kyo Min Hwang, Sunhee Lee, Bu Bae Park, Taekyung Kim, Won-Sik Han
Summary: By studying three anthracene-benzophenone derivatives, it was found that they exhibit hybridized local and charge-transfer characteristics in their emissive transitions, and they show promising performance in organic light-emitting diode (OLED) devices.
Article
Chemistry, Inorganic & Nuclear
So-Yoen Kim, Jeong-Wan Yu, Sunghan Choi, Dae Won Cho, Chul Hoon Kim, Ho-Jin Son, Sang Ook Kang
Summary: The excited-state properties of metal-organic bichromophores were investigated by incorporating naphthalene and carbazole units into phenylimidazole ligand, and it was found that efficient phosphorescent emission of geometrically confined organic tethers was achieved through intramolecular energy transfer in the excited state.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiangyun Xiao, Sunhee Lee, Hyeonjong Ma, Jiwoong Yang, Won-Sik Han, Taekyung Yu
Summary: In this study, magnetic Fe3O4-Pd-n hybrid heterogeneous catalysts were synthesized and showed high magnetic responsiveness, reactivity, and reusability for the Suzuki-Miyaura coupling reaction. The catalyst could be recycled at least ten times with no significant loss of catalytic activity by external magnet separation.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Daehoon Kim, Mina Ahn, Kyung-Ryang Wee, Dae Won Cho
Summary: A series of iridium complexes with different ancillary ligands were synthesized to study their photophysical properties. Experimental results showed that the ancillary ligands play a significant role in influencing the emission changes, including energy transfer and emission intensity variations. Through theoretical calculations and experimental observations, it was found that the interligand energy transfer occurs exothermically and leads to changes in emission properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Siin Kim, Jungkweon Choi, Dae Won Cho, Mina Ahn, Seunghwan Eom, Jungmin Kim, Kyung-Ryang Wee, Hyotcherl Ihee
Summary: This study synthesized a series of cyclometalated Ir complexes and investigated their photoinduced proton-coupled electron transfer (PCET) processes in different solvent environments using experimental and computational methods. The results showed that the solvent modulates the PCET reaction, and it was found that in aprotic solvents, charge transfer occurs after proton transfer, while in protic solvents, the temporal order of charge transfer and proton transfer is reversed.
Article
Materials Science, Multidisciplinary
Dong Jun Kim, Sunhee Lee, Yong Hui Lee, Hyungkeun Jang, Kwang-Hyun Ahn, Won-Sik Han
Summary: Effective host materials play a crucial role in enhancing the performance of phosphorescent organic light-emitting diodes. In this study, a series of triazine-dibenzofuran-based n-type host materials were synthesized, with the position of dibenzofuran substitution found to significantly impact the chemical structure and properties. Among the developed materials, the green PhOLEDs utilizing DBT4/BPCz as a mixed host exhibited the best EL performance, showcasing high current efficiency, external quantum efficiency, power efficiency, and a device lifetime of 180 hours at 10,000 nits.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Jungkweon Choi, Mina Ahn, Jae Hyuk Lee, Doo-Sik Ahn, Hosung Ki, Inhwan Oh, Chi Woo Ahn, Eun Hyuk Choi, Yunbeom Lee, Seonggon Lee, Jungmin Kim, Dae Won Cho, Kyung-Ryang Wee, Hyotcherl Ihee
Summary: The study found that heteroleptic metal complexes exhibit more complex excited state relaxation dynamics, which are attributed to their heteroleptic nature. The fast dynamics may originate from energy transfer between two different types of ligands, while the rapid internal conversion process is likely due to a large nonadiabatic coupling and a small energy gap between the two states.
INORGANIC CHEMISTRY FRONTIERS
(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)
