Results 61 to 70 of about 4,210,866 (206)

The energetics of water on oxide surfaces by quantum Monte Carlo

open access: yes, 2006
Density functional theory (DFT) is widely used in surface science, but gives poor accuracy for oxide surface processes, while high-level quantum chemistry methods are hard to apply without losing basis-set quality.
Alfe`, D., Gillan, M. J.
core   +1 more source

Design of Double-Shelled CuS Nanocages to Optimize Electrocatalytic Dynamic for Sensitive Detection of Ascorbic Acid

open access: yesNanoscale Research Letters, 2020
Although transition metal sulfides have presented prospect in electrochemical sensing, their electrocatalytic performance still cannot meet the demands for practical applications due to the difficulties in mass transport and electron transfer.
Tong Yang   +4 more
doaj   +1 more source

Continuum Surface Energy from a Lattice Model

open access: yes, 2014
We investigate connections between the continuum and atomistic descriptions of deformable crystals, using certain interesting results from number theory. The energy of a deformed crystal is calculated in the context of a lattice model with general binary
A. Barvinok   +19 more
core   +1 more source

Publisher Correction: Nucleation-controlled growth of superior lead-free perovskite Cs3Bi2I9 single-crystals for high-performance X-ray detection

open access: yesNature Communications, 2020
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
Yunxia Zhang   +9 more
doaj   +1 more source

Enhancing the Performance of Perovskite Solar Cells by 4‐Chloro‐1,8‐Naphthalic Anhydride for Surface Passivation

open access: yesAdvanced Materials Interfaces, 2023
On the surface and grain boundary of perovskite films there are large quantities defects, which leads to photogenerated carrier nonradiative recombination and degrades the performance of the perovskite solar cells (PSCs). Surface passivation can suppress
Bonan Shi   +9 more
doaj   +1 more source

Activated Amorphous Carbon With High-Porosity Derived From Camellia Pollen Grains as Anode Materials for Lithium/Sodium Ion Batteries

open access: yesFrontiers in Chemistry, 2018
Carbonaceous anode materials are commonly utilized in the energy storage systems, while their unsatisfied electrochemical performances hardly meet the increasing requirements for advanced anode materials.
Kaiqi Xu   +7 more
doaj   +1 more source

Nucleation-controlled growth of superior lead-free perovskite Cs3Bi2I9 single-crystals for high-performance X-ray detection

open access: yesNature Communications, 2020
Organic-inorganic hybrid halide perovskites have been emerged as promising candidates for X-ray detectors while toxicity and instability are known issues. Here, Zhang et al.
Yunxia Zhang   +9 more
doaj   +1 more source

Measuring the Relative Phase of the Energy Gap in a High-Temperature Superconductor with EELS

open access: yes, 1994
A method of measuring the relative phase of the energy gap in a high-temperature superconductor is suggested for electron energy loss spectroscopy. Energy-resolved measurements of off-specular scattering should show a feature similar to the specular ...
Axe   +21 more
core   +1 more source

On the spreading of impacting drops [PDF]

open access: yes, 2016
The energy budget and dissipation mechanisms during droplet impact on solid surfaces are studied numerically and theoretically. We find that for high impact velocities and negligible surface friction at the solid surface (i.e.
Lohse, Detlef   +3 more
core   +2 more sources

Clinically relevant investigation of flattening filter-free skin dose [PDF]

open access: yes, 2016
As flattening filter-free (FFF) photon beams become readily available for treatment delivery in techniques such as SBRT, thorough investigation of skin dose from FFF photon beams is necessary under clinically relevant conditions.
Belosi   +16 more
core   +2 more sources

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