Journal of Nonlinear Optical Physics & Materials最新文献_第9页

Superconductivity of high-entropy-alloy-type transition-metal zirconide (Fe,Co,Ni,Cu,Ga)Zr2 高熵合金型过渡金属锆(Fe,Co,Ni,Cu,Ga)Zr2的超导性

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-07-14 DOI: 10.1088/2515-7639/ac8e34

M. R. Kasem, H. Arima, Y. Ikeda, A. Yamashita, Y. Mizuguchi

引用次数: 2

Reflections on one million compounds in the open quantum materials database (OQMD) 对开放量子材料数据库(OQMD)中100万种化合物的思考

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-06-23 DOI: 10.1088/2515-7639/ac7ba9

Jiahong Shen, Sean D Griesemer, Abhijith M. Gopakumar, B. Baldassarri, J. Saal, Muratahan Aykol, Vinayakaprasanna N. Hegde, C. Wolverton

引用次数: 9

Raman spectroscopy in layered hybrid organic-inorganic metal halide perovskites 层状杂化有机-无机金属卤化物钙钛矿的拉曼光谱

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-06-16 DOI: 10.1088/2515-7639/ac7977

Davide Spirito, Yaiza Asensio, L. Hueso, B. Martín‐García

{"title":"Raman spectroscopy in layered hybrid organic-inorganic metal halide perovskites","authors":"Davide Spirito, Yaiza Asensio, L. Hueso, B. Martín‐García","doi":"10.1088/2515-7639/ac7977","DOIUrl":"https://doi.org/10.1088/2515-7639/ac7977","url":null,"abstract":"The continuous progress in the synthesis and characterization of materials in the vast family of hybrid organic-inorganic metal halide perovskites (HOIPs) has been pushed by their exceptional properties mainly in optoelectronic applications. These works highlight the peculiar role of lattice vibrations, which strongly interact with electrons, resulting in coupled states affecting the optical properties. Among these materials, layered (2D) HOIPs have emerged as a promising material platform to address some issues of their three-dimensional counterparts, such as ambient stability and ion migration. Layered HOIPs consist of inorganic layers made of metal halide octahedra separated by layers composed of organic cations. They have attracted much interest not only for applications, but also for their rich phenomenology due to their crystal structure tunability. Here, we give an overview of the main experimental findings achieved via Raman spectroscopy in several configurations and set-ups, and how they contribute to shedding light on the complex structural nature of these fascinating materials. We focus on how the phonon spectrum comes from the interplay of several factors. First, the inorganic and organic parts, whose motions are coupled, contribute with their typical modes which are very different in energy. Nonetheless, the interaction between them is relevant, as it results in low-symmetry crystal structures. Then, the role of external stimuli, such as temperature and pressure, which induce phase transitions affecting the spectrum through change in symmetry of the lattice, octahedral tilting and arrangement of the molecules. Finally, the relevant role of the coupling between the charge carriers and optical phonons is highlighted.","PeriodicalId":16520,"journal":{"name":"Journal of Nonlinear Optical Physics & Materials","volume":"2012 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83372452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Dispersive interactions between standard and Dirac materials and the role of dimensionality 标准材料和狄拉克材料之间的色散相互作用和尺寸的作用

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-05-06 DOI: 10.1088/2515-7639/ac6d80

D. Le, P. Rodriguez-Lopez, L. M. Woods

引用次数: 2

Magnetic couplings in edge-sharing high-spin d 7 compounds 共边高自旋d7化合物中的磁耦合

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-04-21 DOI: 10.1088/2515-7639/ac94f8

S. Winter

引用次数: 22

Mechanochemical synthesis of stable, quantum-confined CsPbBr3 perovskite nanocrystals with blue-green emission and high PLQY 具有蓝绿色发射和高PLQY的稳定、量子限制的CsPbBr3钙钛矿纳米晶体的机械化学合成

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-03-28 DOI: 10.1088/2515-7639/ac618f

A. Goyal, E. Andrioti, Y. Tang, Qianchuan Zhao, K. Zheng, K. Newell, P. Schall

{"title":"Mechanochemical synthesis of stable, quantum-confined CsPbBr3 perovskite nanocrystals with blue-green emission and high PLQY","authors":"A. Goyal, E. Andrioti, Y. Tang, Qianchuan Zhao, K. Zheng, K. Newell, P. Schall","doi":"10.1088/2515-7639/ac618f","DOIUrl":"https://doi.org/10.1088/2515-7639/ac618f","url":null,"abstract":"Cesium lead halides are a family of bright, visible-light emitting materials with near-unity photoluminescence quantum yield (PLQY) in nanocrystals (NCs). The usual way to achieve visible light-emission tunability is by mixing halides, which often leads to phase separation and poor stability. While the NCs should also show size-dependent PL emission, reports on strong quantum confinement in these materials are scarce. Here, we report the synthesis of quantum-confined cesium lead bromide (CsPbBr3) NCs via a facile, environment-friendly, and scalable high-energy mechanochemical synthesis route. The PLQY measured is ∼85%, even after 90 days of synthesis, and the emission wavelength is shifted from green, 520 nm, to blue, 460 nm by quantum confinement in NCs of size 3–5 nm. Micro-PL optical spectroscopy and atomic force microscopy confirm the size tunability of PL on a single-dot scale. Our work demonstrates the potential of mechanochemical synthesis in the medium-scale production of bright luminescent quantum-confined NCs that could be extended to other materials as well.","PeriodicalId":16520,"journal":{"name":"Journal of Nonlinear Optical Physics & Materials","volume":"44 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85174186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-03-24 DOI: 10.1088/2515-7639/ac7e6d

Motoharu Kitatani, R. Arita, T. Schäfer, K. Held

引用次数: 9

Eliashberg theory with ab-initio Coulomb interactions: a minimal numerical scheme applied to layered superconductors 具有从头算库仑相互作用的Eliashberg理论:应用于层状超导体的最小数值格式

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-03-23 DOI: 10.1088/2515-7639/ac6041

C. Pellegrini, R. Heid, A. Sanna

引用次数: 6

Electronic properties of twisted multilayer graphene 扭曲多层石墨烯的电子特性

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-03-17 DOI: 10.1088/2515-7639/ac6c4a

V. Nguyen, X. Trinh, J. Charlier

{"title":"Electronic properties of twisted multilayer graphene","authors":"V. Nguyen, X. Trinh, J. Charlier","doi":"10.1088/2515-7639/ac6c4a","DOIUrl":"https://doi.org/10.1088/2515-7639/ac6c4a","url":null,"abstract":"Twisted bilayer graphene displays many fascinating properties that can be tuned by varying the relative angle (also called twist angle) between its layers. As a notable feature, both the electronic flat bands and the corresponding strong electron localization have been obtained at a specific ‘magic’ angle ( ∼1.1∘ ), leading to the observation of several strongly correlated electronic phenomena. Such a discovery has hence inspired the creation of a novel research field called twistronics, i.e. aiming to explore novel physical properties in vertically stacked 2D structures when tuning the twist angle between the related layers. In this paper, a comprehensive and systematic study related to the electronic properties of twisted multilayer graphene (TMG) is presented based on atomistic calculations. The dependence of both the global and the local electronic quantities on the twist angle and on the stacking configuration are analyzed, fully taking into account atomic reconstruction effects. Consequently, the correlation between structural and electronic properties are clarified, thereby highlighting the shared characteristics and differences between various TMG systems as well as providing a comprehensive and essential overview. On the basis of these investigations, possibilities to tune the electronic properties are discussed, allowing for further developments in the field of twistronics.","PeriodicalId":16520,"journal":{"name":"Journal of Nonlinear Optical Physics & Materials","volume":"342 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77675631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Interphases in the electrodes of potassium ion batteries 钾离子电池的电极界面

IF 2.7 4区物理与天体物理

Journal of Nonlinear Optical Physics & Materials Pub Date : 2022-03-15 DOI: 10.1088/2515-7639/ac5dce

Yupei Han, Ajay Piriya Vijaya Kumar Saroja, H. Tinker, Yang Xu

{"title":"Interphases in the electrodes of potassium ion batteries","authors":"Yupei Han, Ajay Piriya Vijaya Kumar Saroja, H. Tinker, Yang Xu","doi":"10.1088/2515-7639/ac5dce","DOIUrl":"https://doi.org/10.1088/2515-7639/ac5dce","url":null,"abstract":"\u0000 Rechargeable potassium-ion batteries (PIBs) are of great interest as a sustainable, environmentally friendly, and cost-effective energy storage technology. The electrochemical performance of a PIB is closely related to the reaction kinetics of active materials, ionic/electronic transport, and the structural/electrochemical stability of cell components. Alongside the great effort devoted in discovering and optimising electrode materials, recent research unambiguously demonstrates the decisive role of the interphases that interconnect adjacent components in a PIB. Knowledge of interphases is currently less comprehensive and satisfactory compared to that of electrode materials, and therefore, understanding the interphases is crucial to facilitate electrode materials design and advance battery performance. The present review aims to summarise the critical interphases that dominate the overall battery performance of PIBs, which includes solid-electrolyte interphase (SEI), cathode-electrolyte interphase (CEI), and solid-solid interphases in composite electrodes, via exploring their formation principles, chemical compositions, and determination of reaction kinetics. State-of-the-art design strategies of robust interphases are discussed and analysed. Finally, perspectives are given to stimulate new ideas and open questions to further the understanding of interphases and the development of PIBs.","PeriodicalId":16520,"journal":{"name":"Journal of Nonlinear Optical Physics & Materials","volume":"238 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2022-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72433020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6