Results 21 to 30 of about 20,036 (269)

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

open access: yesEnergies, 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   +3 more
doaj   +1 more source

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

open access: yesApplied 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   +4 more
doaj   +1 more source

Advances and Prospects in the Study of Spherical Polyelectrolyte Brushes as a Dopant for Conducting Polymers

open access: yesMolecules
Owing to their special structure and excellent physical and chemical properties, conducting polymers have attracted increasing attention in materials science.
Na Su
doaj   +1 more source

Rationally designed hole transporting layer system for efficient and stable perovskite solar cells

open access: yesEcoMat, 2023
In this review, p‐type doping technologies for organic/polymeric semiconductors in hole transporting layer (HTL) for perovskite solar cells (PSCs) are examined.
Jaehee Lee   +5 more
doaj   +1 more source

Structural and dielectric properties of (1-x)Pb(Zr0.53Ti0.47)O3-xGdMnO3 ceramics

open access: yesCerâmica, 2021
Ceramics compositions (1-x)Pb(Zr0.53Ti0.47)O3-xGdMnO3 (x= 0, 0.01, 0.02, 0.03, 0.04, and 0.05) were synthesized by solid-state route and sintered at 1180 °C for 2 h.
Y. Bakhaled   +5 more
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Determinação das energias de superfície do SnO2 puro e dopado Surface energy of pure and doped tin oxide

open access: yesCerâmica, 2009
A calorimetria tem se mostrado uma importante ferramenta para o controle e entendimento de comportamentos de sistemas nanoestruturados. Isto se deve basicamente às recentes medidas de energia de superfície reportadas na literatura; isto é, como em ...
R. H. R. Castro   +3 more
doaj   +1 more source

Single-Electron Transport through Single Dopants in a Dopant-Rich Environment [PDF]

open access: yesPhysical Review Letters, 2010
We show that single-electron transport through a single dopant can be achieved even in a random background of many dopants without any precise placement of individual dopants. First, we observe potential maps of a phosphorus-doped channel by low-temperature Kelvin probe force microscopy, and demonstrate potential changes due to single-electron trapping
Michiharu, Tabe   +6 more
openaire   +2 more sources

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch   +3 more
wiley   +1 more source

Phase composition of Bi2O3 specimens doped with Ti, Zr and Hf [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
Powder mixtures of α-Bi2O3 containing 2, 5 and 10 mole % of TiO2, ZrO2 or HfO2 were homogenized, heated at 820ºC for 24 h and quenched in air. X-ray powder diffraction technique was used to characterize the prepared samples.
Poleti Dejan   +3 more
doaj   +1 more source

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