Article
Chemistry, Analytical
Prasad Kulkarni, Amey Kulkarni, Ramireddy Boppella, Habib M. Pathan, Aniruddha Chatterjee, Suvarna R. Bathe, Nilesh L. Tarwal, Shravanti Joshi
Summary: Heterostructured WO3-SnO2 nanoarchitects were demonstrated as a promising candidate for reliable chlorine gas monitoring, with a low limit of detection (9 ppb). The study investigated the sensing characteristics by comparing with control samples (pure SnO2 and WO3), confirming the sensitivity's dependence on crystal structure and n-n nanointerfaces.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Physical
Shijun Zhao, Da Chen, Guma Yeli, J. J. Kai
Summary: This study investigates the effects of ordering degree and order/disorder interface on the irradiation resistance of chemically-disordered alloys through atomistic simulations. It reveals that the degree of order has profound influences on defect evolution, particularly on defect clustering properties. The results shed light on the atomistic mechanism underlying the irradiation response of ordered and disordered alloys and advance the understanding of defect processes in superalloys and high-entropy alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Editorial Material
Chemistry, Multidisciplinary
Sergei D. Baranovskii, Pauline Hoehbusch, Alexey V. Nenashev, Anatolii V. Dvurechenskii, Marina Gerhard, Dirk Hertel, Klaus Meerholz, Martin Koch, Florian Gebhard
Summary: In the study of optoelectronic properties in FAPb(1-x)Sn(x)I(3) and FA(0.83)Cs(0.17)Pb(1-x)Sn(x)I(3) perovskites as a function of the lead:tin content, researchers observed that the broadest luminescence linewidth and the largest Stokes shift occurred in mixed compositions with Sn 85%, contrary to the intuitive expectation. This comment suggests that the largest effects of alloy disorder are expected for x < 0.25 and x > 0.85 due to statistical local spatial fluctuations of the alloy composition, which could explain why Pb-rich and Sn-rich Sn-Pb perovskites exhibit certain optical properties compared to lead-only counterparts.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Energy & Fuels
B. B. Dumre, R. J. Ellingson, S. Khare
Summary: In this study, first principles methods based on density functional theory and Monte Carlo simulations were used to investigate the properties and phase diagram of ZnxCd1-xTe alloys. The alloying effects on the opto-electronic properties were studied, and the presence of short-range order was observed. It was found that the bandgap and effective carrier masses exhibit bowing effects, which can be attributed to local geometrical distortions. The study also revealed the importance of short-range order and composition in the design and synthesis of solar cells.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Materials Science, Multidisciplinary
Congwei Lu, Zhao-Fan Cai, Mei Zhang, Haibo Wang, Qing Ai, Tao Liu
Summary: We investigate the effects of random onsite disorder on higher-order Thouless pumping in noninteracting fermionic Benalcazar-Bernevig-Hughes (BBH) model. We explore the interplay between disorder-induced topological phase transition and delocalization-localization transition. The higher-order Thouless pumping is characterized by quantized corner-to-corner charge transport and nonzero Chern number, and the delocalization-localization transition is analyzed using inverse participation ratio and finite-size scaling. The results show that strong disorder breaks the quantized charge transport due to the closed instantaneous bulk energy gap. However, even though the instantaneous eigenstates are localized for weak disorder, the charge transport remains quantized due to delocalized Floquet states caused by periodic driving. Furthermore, the transition from quantized charge transport to topologically trivial pumping accompanies the disorder-induced delocalization-localization transition of Floquet states.
Article
Mathematics, Applied
Subrata Ghosh, Pitambar Khanra, Prosenjit Kundu, Peng Ji, Dibakar Ghosh, Chittaranjan Hens
Summary: We investigate epidemic spreading in heterogeneous networks with higher-order interactions and provide a recipe for constructing a reduced model. The microscopic state of nodes inversely scales with their degree and becomes diminished due to higher-order interactions, resulting in an abrupt transition in the macroscopic state. We also quantify the network's resilience and propose an alternative dimension reduction framework based on spectral analysis.
Review
Medicine, General & Internal
Ozan E. Eren, Helmut Wilhelm, Christoph J. Schankin, Andreas Straube
Summary: This review article discusses common visual phenomena that need to be distinguished from migraine aura, emphasizing the importance of differential diagnosis based on specific questions. It also mentions other possible diagnoses such as cerebral/retinal ischemia, visual snow, and hallucinogen persisting perception disorder.
DEUTSCHES ARZTEBLATT INTERNATIONAL
(2021)
Article
Operations Research & Management Science
Anh Tu Le, Thai-Ha Le, Wai-Man Liu, Kingsley Y. Fong
Summary: This study examines the impact of two system upgrades by the Australian Securities Exchange on market quality, showing that lower latency allows traders to take advantage of liquidity when it is cheap. Algorithmic trading/high-frequency trading in large-cap stocks can provide liquidity and stabilize prices during times of high short-term volatility. regulators need to be prepared for near-time reactions and rapid investigations in case of market stress.
ANNALS OF OPERATIONS RESEARCH
(2021)
Article
Physics, Applied
M. Amir Bazrafshan, Farhad Khoeini, Bartlomiej Szafran
Summary: This work examines the electronic and transport properties of phosphorene nanorings in two perpendicular directions (zigzag and armchair directions) with zigzag metallic source and drain leads. The study shows that system parameters such as the radius of the rings, the width of the leads, and the external potential affect the electronic transport. Results indicate the existence of a transport energy gap that can be adjusted by the width of the leads and the radius of the nanoring. The wider leads are more sensitive to changes in the inner radius, and the transport along the armchair direction is more tunable than along the zigzag direction. The effects of external potentials on conductance are more significant than geometric parameters.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Mariam Kurashvili, Iryna Polishchuk, Arad Lang, Simone Strohmair, Alexander F. Richter, Sebastian Rieger, Tushar Debnath, Boaz Pokroy, Jochen Feldmann
Summary: This study investigates the optical properties of a bioinspired system, Cu2O-AAs, using optical spectroscopy and theoretical modeling. The presence of amino acids strongly influences the absorption and photoluminescence excitation spectra of Cu2O-AAs, resulting in a blue-shift and wider band gap due to quantum confinement effects. Surprisingly, no such shift is observed in the emission spectra, which can be explained by the inhomogeneous distribution of amino acids within Cu2O-AAs predicted by the theoretical model.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Mikhail Talanov, Vladimir B. Shirokov, Valeriy M. Talanov
Summary: This article explores the use of the Landau order parameter (OP) based on symmetry to describe the formation of spontaneous magnetic structures and related multi-ordered states. It also highlights the potential of this approach in the search for new advanced magnetic and electronic materials.
Article
Engineering, Environmental
Cheng Li, Jing-Jing Xu, Fang-Yue Zhou, Kai-Zhou Qin, Ying-Zhou Ge, He-Feng Huang, Yan-Ting Wu
Summary: The study found that there is an association between particulate matter (PM) and gestational hypertensive disorders (GHDs), but there is no evidence on the associations between PM and GHD progression, especially among those with assisted reproductive technology (ART) conceptions. The study included 185,140 pregnant women in Shanghai from 2014 to 2020 and found that increased PM concentrations during the preconception period were associated with an increased risk of gestational hypertension (GH) and preeclampsia among women with natural conception. Additionally, for women with ART conceptions who already had GHD, increased PM concentrations in the third trimester elevated the risk of progression.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Rohan Bahadur, Gurwinder Singh, Yoshio Bando, Ajayan Vinu
Summary: This review focuses on the synthesis methods, structure-property relationships, and application perspectives of BCN and BN, providing up-to-date information not previously covered. The porosity of BCN, a fascinating yet less explored aspect, is highlighted, with its high surface area and pore size enhancing material efficiency. The review also examines various factors affecting the structure and property relationship of BCN and discusses current challenges and future directions in application fields.
Article
Thermodynamics
Liu Cui, Gaosheng Wei, Zhao Li, Jingjian Ma, Xiaoze Du
Summary: This study investigates the heat transport in silicene nanomesh (SNM) and reveals that the introduction of secondary artificial periodicity leads to a reduction in phonon group velocities, resulting in a lower thermal conductivity compared to pure silicene. The presence of multiple phonon bandgaps in the optical phonon spectrum of SNM and the scattering of phonons at both hole boundaries and interface regions distinguish SNM from graphene nanomesh, providing new insights into coherent and incoherent phonon transport and its implications for Si-based nanoelectronic devices.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
Seidali S. Seidov, Vladislav D. Kochev, Pavel D. Grigoriev
Summary: The interplay between superconductivity and spin/charge density wave in organic metals is similar to high-Tc superconductors. This study shows that the phase transition between the two phases in organic superconductors is a first-order phase transition at low enough temperature, explaining the observed spatial segregation phenomenon.
Article
Energy & Fuels
Shunsuke Akari, Jakapan Chantana, Shigeru Nakatsuka, Yoshitaro Nose, Takashi Minemoto
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2018)
Article
Materials Science, Multidisciplinary
Kei Terayama, Ryo Tamura, Yoshitaro Nose, Hidenori Hiramatsu, Hideo Hosono, Yasushi Okuno, Koji Tsuda
PHYSICAL REVIEW MATERIALS
(2019)
Article
Physics, Applied
Shigeru Nakatsuka, Kenji Kazumi, Yoshitaro Nose
JAPANESE JOURNAL OF APPLIED PHYSICS
(2019)
Article
Chemistry, Inorganic & Nuclear
Ryoji Katsube, Yoshitaro Nose
JOURNAL OF SOLID STATE CHEMISTRY
(2019)
Article
Physics, Applied
Akira Nagaoka, Kensuke Nishioka, Kenji Yoshino, Ryoji Katsube, Yoshitaro Nose, Taizo Masuda, Michael A. Scarpulla
APPLIED PHYSICS LETTERS
(2020)
Correction
Electrochemistry
Yusuke Okumura, Yoshitaro Nose, Junichi Katayama, Tetsuya Uda
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Energy & Fuels
Taro Kuwano, Ryoji Katsube, Kenji Kazumi, Yoshitaro Nose
Summary: The study revealed that the formation of Cu3P at the interface between Cu and ZnSnP2 helps to enhance the current density in ZnSnP2 solar cells, prevents roll-over of J-V curves, and achieves the highest efficiency of 3.87%. It is concluded that Cu3P is a promising back buffer material for ZnSnP2 solar cells due to its alignment with ZnSnP2 in terms of band and lattice structures.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Physics, Applied
Taro Kuwano, Ryoji Katsube, Steve Johnston, Adele C. Tamboli, Yoshitaro Nose
Summary: ZnSnP2, an emerging inorganic material for solar cells, was characterized using DLTS and PL, revealing shallow acceptor- and donor-like traps, as well as a deep level trap. These traps may result from defects in the material, leading to a shorter minority carrier lifetime.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Issei Suzuki, Zexin Lin, Sakiko Kawanishi, Kiyohisa Tanaka, Yoshitaro Nose, Takahisa Omata, Shin-Ichiro Tanaka
Summary: Valence band dispersions of single-crystalline SnS1-xSex solid solutions were observed using ARPES, and the hole effective masses were directly evaluated. It was found that the hole effective masses decrease slightly with increasing Se content in the low Se composition range, but sharply in the high Se composition range.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Shunsuke Uchiyama, Ryosuke Sato, Ryoji Katsube, Muhammad Monirul Islam, Hideaki Adachi, Takeaki Sakurai, Yoshitaro Nose, Yasuaki Ishikawa
Summary: Iron pyrite, as an earth-abundant and low-cost photovoltaic material, shows limited conversion efficiency in solar cells. Optical and electrical characteristics of iron pyrite single crystals were evaluated, revealing the influence of an oxide layer on the surface and the presence of indirect and direct transitions. The high defect density and disordered phase in iron pyrite bulk lead to a hopping conduction mechanism.
Article
Physics, Applied
Isshin Sumiyoshi, Yoshitaro Nose
Summary: We investigated the minority carrier lifetime and behavior of lattice defects in ZnSnP2 bulk crystals and found that an electron trap with a short time constant contributes to the short carrier lifetime. The recombination through this trap is nonradiative, resulting in lower current density in ZnSnP2 solar cells. By preparing crystals under conditions with higher chemical potential of Zn, we achieved an enhancement of carrier lifetime and demonstrated an improvement in current density in ZnSnP2 solar cells.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Shigeru Ikeda, Wakaba Fujita, Riku Okamoto, Yoshitaro Nose, Ryoji Katsube, Kenji Yoshino, Takashi Harada
Article
Materials Science, Multidisciplinary
Ryoji Katsube, Kei Terayama, Ryo Tamura, Yoshitaro Nose
ACS MATERIALS LETTERS
(2020)
Proceedings Paper
Energy & Fuels
Taro Kuwano, Ryoji Katsube, Yoshitaro Nose
2019 IEEE 46TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)
(2019)
Article
Engineering, Electrical & Electronic
Ryoji Katsube, Yuming Yang, Shigeru Nakatsuka, Yoshitaro Nose
ACS APPLIED ELECTRONIC MATERIALS
(2019)
