Results 101 to 110 of about 7,737 (297)
, 2014 We report a new class of large-gap quantum spin Hall insulators in two-dimensional transition metal dichalcogenides, namely, MX$_2$ with M=(Mo, W) and X=(S, Se, and Te), whose topological electronic properties are highly tunable by external electric ...
Alicea +27 more
core +2 more sources
Layered double hydroxide/sepiolite heterostructured materials
Applied Clay Science, 2016 Oral presentation given at the Euroclay 2015, held in Edinburgh (Scotland), on July 5-10th, 2015.
Gómez Avilés, Almudena +2 more
openaire +3 more sources
Electrochemical Formation of BiVO4/BiPO4 Photoanodes for Enhanced Selectivity toward H2O2 Generation
Advanced Functional Materials, EarlyView.In acidic KPi, V dissolves from the BiVO4 lattice, while adsorbed phosphate reacts with the electrode under an external bias, forming a BiPO4 surface layer. This BiPO4 layer exhibits stronger bicarbonate adsorption, redirecting the water oxidation pathway toward two‐electron H2O2 production.
Kaijian Zhu +12 more
wiley +1 more source
Solvothermal synthesis and properties of Layered/Spinel heterostructured Li-rich and Mn-based cathode materials of Li-ion batteries [PDF]
, 2016 随着化石能源的快速消耗和环境污染问题的日益突出，人类社会的可持续发展对于电动汽车的需求日渐迫切。具有较高能量密度的锂离子电池已成为了新能源极为重要的组成部分。相较于负极材料，正极材料是进一步提高锂离子电池能量密度的决定性因素，也决定着锂电池的安全性能及使用寿命。其中，富锂锰基固溶体材料（Li2MnO3•LiMO2）具有较高的放电比容量（≥250mAh/g）、低成本、较好的热稳定性等优点受到了广泛关注，并被认为是极具前景的下一代锂离子电池正极材料。但富锂材料存在的一些的问题严重制约了其发展应用，
邓亚平
core
Thickness‐Dependent Skyrmion Evolution in Fe3GeTe2 During Magnetization Reversal
Advanced Functional Materials, EarlyView.Thickness‐ and field‐dependent magnetic domain behavior in 2D van der Waals Fe3GeTe2 is studied using Lorentz TEM and micromagnetic simulations. A patch‐like domain phase evolves from skyrmions during magnetization reversal, and step edges between thickness regions act as pinning sites.
Jennifer Garland +9 more
wiley +1 more source
Spin-polarized light emitting diode using metal/insulator/semiconductor structures
, 2002 We have succeeded in growing ferromagnetic metals (Co, Fe, and NiFe)/ Al2O3/ AlGaAs heterostructures with homogeneous and flat interfaces. The electro-luminescence (EL) from the light emitting diode (LED) consisting of the metal/insulator/semiconductor ...
Akinaga, H., Manago, T.
core +1 more source
Advanced Functional Materials, EarlyView.A roll‐to‐roll exfoliation method is demonstrated that preserves the crystallographic alignment of anisotropic 2D materials over large areas, enabling scalable fabrication of directional electronic and optoelectronic devices. Abstract Anisotropic 2D materials such as black phosphorus (BP), GeS or CrSBr, exhibit direction‐dependent optical and ...
Esteban Zamora‐Amo +14 more
wiley +1 more source
Growth and reductive transformation of a gold shell around pyramidal cadmium selenide nanocrystals
, 2010 We report the growth of an unstable shell-like gold structure around dihexagonal pyramidal CdSe nanocrystals in organic solution and the structural transformation to spherical domains by two means: i) electron beam irradiation (in situ) and (ii) addition
Andreas Kornowski +35 more
core +1 more source
Advanced Functional Materials, EarlyView.It is reported that the ferroelectric switching behavior of rhombohedral (3R) phase transition metal dichalcogenide (TMD) bilayers strongly depends on their domain structures. Single‐domain TMDs (SD‐TMDs) with domain‐wall‐free structures exhibit robust and stable polarization switching, whereas poly‐domain TMDs (PD‐TMDs) with randomly distributed ...
Ji‐Hwan Baek +8 more
wiley +1 more source
Beilstein Journal of Nanotechnology, 2017 CdSe nanorods (NRs) with an average length of ≈120 nm were prepared by a solvothermal process and associated to TiO2 nanoparticles (Aeroxide® P25) by annealing at 300 °C for 1 h. The content of CdSe NRs in CdSe/TiO2 composites was varied from 0.5 to 5 wt
Fakher Laatar +7 more
doaj +1 more source