Results 1 to 10 of about 64,588 (104)

Chemistry Academic Program Review [PDF]

open access: yes, 2023
This report summarizes an evaluation of the UNT Libraries' Chemistry-related resources and materials to determine if the collection is adequately serving patron needs.
Harker, Karen
core  

On the Definition of Phase Diagram

open access: yesCrystals, 2022
A phase diagram, which is understood as a graphical representation of the physical states of materials under varied temperature and pressure conditions, is one of the basic concepts employed in high-pressure research. Its general definition refers to the
Kamil Filip Dziubek
doaj   +1 more source

Magnussonite, Mn2+18 (As3+O3)6Mn1+x(H2O, Clx, ☐): Re-Examination of the Structure and the [Mn1+(As3+O3)6] Cluster

open access: yesCrystals, 2022
The crystal structure of magnussonite, ideally Mn2+18[As3+6(Mn1+x)O18]2[(H2O, Clx, ☐) (H2O, ☐)]2, from Långban, Sweden, was refined to an R1-index of 1.19% and the structure proposed by Moore and Araki (1979) is confirmed.
Frank C. Hawthorne   +2 more
doaj   +1 more source

Artificial Intelligence for Crystal Growth and Characterization

open access: yesCrystals, 2022
The Special Issue on “Artificial Intelligence for Crystal Growth and Characterization” comprises six original articles in this emerging field of research [...]
Saskia Schimmel   +2 more
doaj   +1 more source

InGaN Based C-Plane Blue Laser Diodes on Strain Relaxed Template with Reduced Absorption Loss

open access: yesCrystals, 2022
InGaN based c-plane blue LDs on strain relaxed template (SRT) with a reduced absorption loss was demonstrated. The loss is reduced from 27 cm−1 to 20 cm−1.
Hsun-Ming Chang   +8 more
doaj   +1 more source

Influence of Superlattice Structure on V-Defect Distribution, External Quantum Efficiency and Electroluminescence for Red InGaN Based µLEDs on Silicon

open access: yesCrystals, 2022
Achieving high quantum efficiency in long-wavelength LEDs has posed a significant challenge to the solid-state lighting and display industries. In this article, we use V-defect engineering as a technique to achieve higher efficiencies in red InGaN LEDs ...
Jacob Ewing   +8 more
doaj   +1 more source

Recent Developments of Carbon-Based Anode Materials for Flexible Lithium-Ion Batteries

open access: yesCrystals, 2022
Flexible lithium-ion batteries (FLIBs) have rapidly developed as promising energy storage devices for flexible and wearable electronics, owning to the advantages of high energy density, fast charge–discharge, no memory effect and stable cycle performance.
Ling Deng   +5 more
doaj   +1 more source

Chinese Colorless HPHT Synthetic Diamond Inclusion Features and Identification

open access: yesCrystals, 2022
Chinese HPHT diamonds have improved dramatically in recent years. However, this brings a challenge in identifying type IIa colorless diamonds. In this study, eleven HPHT and three natural, colorless, gem-quality IIa diamonds were analyzed using magnified
Ying Ma   +8 more
doaj   +1 more source

Impact of Mo-Doping on the Structural, Optical, and Electrocatalytic Degradation of ZnO Nanoparticles: Novel Approach

open access: yesCrystals, 2022
Pure and Molybdenum (Mo)-doped zinc oxide (ZnO) nanoparticles were prepared by a cost-effective combustion synthesis route. XRD results revealed the decrement in crystallite size of ZnO with an increase in Mo-doping concentration.
Vanga Ganesh   +8 more
doaj   +1 more source

X-ray Line Profile Analysis of Austenitic Phase Transition and Morphology of Nickel-Free Fe-18Cr-18Mn Steel Powder Synthesized by Mechanical Alloying

open access: yesCrystals, 2022
In this study, microstructural evolution and phase transition of nickel-free Fe-18Cr-18Mn (wt. %) austenitic steel powders, induced by mechanical alloying, were investigated.
Eliza Romanczuk-Ruszuk   +2 more
doaj   +1 more source

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