Results 81 to 90 of about 1,487,728 (380)

Nano‐Patterned CuO Nanowire Nanogap Hydrogen Gas Sensor with Voids

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Sub‐5‐ppb hydrogen (H2) detection and sub‐10‐s response and recovery times are achieved based on nano‐patterned polycrystalline CuO nanowires nanogap gas sensors with voids using electron‐beam lithography and unique annealing processes. Pre‐H2 annealing, void‐generating oxidation, and downscaled nanogap electrodes are key to improving the sensing ...
Muqing Zhao   +4 more
wiley   +1 more source

General phenomenology of ionization from aligned molecular ensembles

open access: yesNew Journal of Physics, 2015
Single and multi-photon ionization of aligned molecular ensembles is examined, with a particular focus on the link between the molecular axis distribution and observable in various angle-integrated and angle-resolved measurements.
Paul Hockett
doaj   +1 more source

Bound electron nonlinearity beyond the ionization threshold

open access: yes, 2018
Although high field laser-induced ionization is a fundamental process underlying many applications, there have been no absolute measurements of the nonlinear polarizability of atoms and molecules in the presence of ionization. Such information is crucial,
Bahl, A.   +4 more
core   +1 more source

Interpreting the Ionization Sequence in AGN Emission-Line Spectra [PDF]

open access: yes, 2013
We investigate the physical cause of the great range in the ionization level seen in the spectra of narrow lined active galactic nuclei (AGN). Mean field independent component analysis identifies examples of individual SDSS galaxies whose spectra are not
Allen, James T.   +4 more
core   +3 more sources

Deciphering the Origin of Higher Shell Coordination on Single Iron Catalysts for Resilient Modulating Persulfate Oxidation Into Singlet Oxygen Pathway

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
This study reveals that higher shell S coordination can effectively modulate the spin state of FeN4 site via long‐range electronic interactions, giving rise to the oriented generation of singlet oxygen from peroxymonosulfate activation. Abstract Precise manipulation of coordination structure of single‐atom sites and establishment of schematic ...
Liang Zhang   +8 more
wiley   +1 more source

Monte-Carlo approach to calculate the ionization of warm dense matter within particle-in-cell simulations

open access: yes, 2016
A physical model based on a Monte-Carlo approach is proposed to calculate the ionization dynam- ics of warm dense matters (WDM) within particle-in-cell simulations, and where the impact (col- lision) ionization (CI), electron-ion recombination (RE) and ...
Fritzsche, S., He, X. T., Wu, D., Yu, W.
core   +2 more sources

3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri   +16 more
wiley   +1 more source

Molecular properties, including chameleonicity, as essential tools for designing the next generation of oral beyond rule of five drugs

open access: yesADMET and DMPK
Background and Purpose. The classical drug discovery toolbox continually expands beyond traditional rule of five (Ro5)-compliant small molecules to include new chemical modalities for difficult-to-drug targets.
Giulia Caron   +6 more
doaj   +1 more source

The Ionization Mechanism in Radioactive Ionization Detector

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1965
放射線イオン化検出器の分野では,イオン化ポテンシャル(以下1.P・と略す)が,アルゴンの励起状態の原子の11.6eVよりも低い一般の有機ガスの場合を除いて,イオン化機構に関する研究がほとんどされていない。著者らは先の報文で,RaD100μcのα線源を内蔵する放射線イオン化検出器を用いた無機ガスの分析に関する報告を行なった。この研究の一環として,この報文ではI.P.が11.6eV以上のサソプルガスとして,モレキュラーシーブ5Aカラムのガスクロマトグラフィーで,空気から分離した酸素と窒素を用い,キャリヤーガスに,アルゴン,有機蒸気を含れアルゴン,ヘリウムおよび水素を用いた場合の実験結果を考察して,“Penning効果”,加速電子およびα 線による直接のイオン化 ...
Shin TSUGE, Tsugio TAKEUCHI
openaire   +2 more sources

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

open access: yesAdvanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram   +2 more
wiley   +1 more source

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