Results 21 to 30 of about 93,509 (299)

Mg₆MnO₈ as a Magnesium-Ion Battery Material: Defects, Dopants and Mg-Ion Transport

Energies, 2019
Rechargeable magnesium ion batteries have recently received considerable attention as an alternative to Li- or Na-ion batteries. Understanding defects and ion transport is a key step in designing high performance electrode materials for Mg-ion batteries.
Navaratnarajah Kuganathan, Evangelos I. Gkanas, Alexander Chroneos   +2 more
doaj   +1 more source

Multivariate Analysis on a Complex, Rare-Earth Doped Alumina Database with Fractal Dimension as a Microstructural Quantifier

Fractal and Fractional, 2023
Alumina ceramics were obtained from three different alumina sources, A1–A3, with various rare-earth dopants (La2O3–La, Nd2O3–Nd, and Y2O3–Y), concentration levels (500 and 1000 ppm) and synthesizing routes (1500 °C, 1815 °C and cold plasma-P). Absorption
Zeno Dorian Ghizdavet, Adrian Volceanov, Enikő Volceanov   +2 more
doaj   +1 more source

A Computational Study of Defects, Li-Ion Migration and Dopants in Li₂ZnSiO₄ Polymorphs

Crystals, 2019
Lithium zinc silicate, Li2ZnSiO4, is a promising ceramic solid electrolyte material for Li-ion batteries. In this study, atomistic simulation techniques were employed to examine intrinsic defect processes; long range Li-ion migration paths, together with
Dilki Perera, Sashikesh Ganeshalingam, Navaratnarajah Kuganathan, Alexander Chroneos   +3 more
doaj   +1 more source

Design and Characterization of a Sharp GaAs/Zn(Mn)Se Heterovalent Interface: A Sub-Nanometer Scale View

Nanomaterials, 2020
The distribution of magnetic impurities (Mn) across a GaAs/Zn(Mn)Se heterovalent interface is investigated combining three experimental techniques: Cross-Section Scanning Tunnel Microscopy (X-STM), Atom Probe Tomography (APT), and Secondary Ions Mass ...
Davide F. Grossi, Sebastian Koelling, Pavel A. Yunin, Paul M. Koenraad, Grigory V. Klimko, Sergey V. Sorokin, Mikhail N. Drozdov, Sergey V. Ivanov, Alexey A. Toropov, Andrei Y. Silov   +9 more
doaj   +1 more source

Facile Hydrothermal and Solvothermal Synthesis and Characterization of Nitrogen-Doped Carbon Dots from Palm Kernel Shell Precursor

Applied Sciences, 2021
Carbon dots (CDs), a nanomaterial synthesized from organic precursors rich in carbon content with excellent fluorescent property, are in high demand for many purposes, including sensing and biosensing applications.
Yakubu Newman Monday, Jaafar Abdullah, Nor Azah Yusof, Suraya Abdul Rashid, Rafidah Hanim Shueb   +4 more
doaj   +1 more source

Preferential Positioning of Dopants and Co-Dopants in Embedded and Freestanding Si Nanocrystals [PDF]

Journal of the American Chemical Society, 2014
In this work we aim at understanding the effect of n-type and p-type substitutional doping in the case of matrix-embedded and freestanding Si nanocrystals. By means of ab-initio calculations we identify the preferential positioning of the dopants and its effect on the structural properties with respect to the undoped case. Subsequently, we consider the
GUERRA, Roberto, OSSICINI, Stefano
openaire   +4 more sources

Defect Process, Dopant Behaviour and Li Ion Mobility in the Li₂MnO₃ Cathode Material

Energies, 2019
Lithium manganite, Li2MnO3, is an attractive cathode material for rechargeable lithium ion batteries due to its large capacity, low cost and low toxicity.
Navaratnarajah Kuganathan, Efstratia N. Sgourou, Yerassimos Panayiotatos, Alexander Chroneos   +3 more
doaj   +1 more source

Ab Initio Study of Phase Stability in Doped TiO2

, 2012
Ab-initio density functional theory (DFT) calculations of the relative stability of anatase and rutile polymorphs of TiO2 were carried using all-electron atomic orbitals methods with local density approximation (LDA).
Assadi, Mohammed H. N., Hanaor, Dorian A. H., Li, Sean, Sorrell, Charles C., Yu, Aibing   +4 more
core   +1 more source

Electronic tuning and uniform superconductivity in CeCoIn5

, 2012
We report a globally reversible effect of electronic tuning on the magnetic phase diagram in CeCoIn_{5} driven by electron (Pt and Sn) and hole (Cd, Hg) doping. Consequently, we are able to extract the superconducting pair breaking component for hole and
Bauer, E. D., Fisk, Z., Gofryk, K., Lu, X., Mar, A., Ou, M. N., Park, T., Ronning, F., Stoyko, S. S., Thompson, J. D., Tobash, P. H., Zhu, J. -X.   +11 more
core   +1 more source

Spin transport in dangling-bond wires on doped H-passivated Si(100) [PDF]

, 2014
New advances in single-atom manipulation are leading to the creation of atomic structures on H passivated Si surfaces with functionalities important for the development of atomic and molecular based technologies.
Kepenekian, Mikaël, Lorente, Nicolás, Robles, Roberto, Rurali, Riccardo   +3 more
core   +5 more sources