Results 31 to 40 of about 6,042 (221)

Calibrated NEXAFS spectra of common conjugated polymers [PDF]

open access: yesThe Journal of Chemical Physics, 2011
Near edge x-ray absorption fine structure (NEXAFS) spectroscopy has evolved into a powerful characterization tool for polymeric materials and is increasingly being used to elucidate composition and orientation in thin films of relevance to organic electronic devices.
Watts, B.   +4 more
openaire   +3 more sources

Investigation of Nuclear Motion Effects in NEXAFS Spectroscopy [PDF]

open access: yes, 2023
Near Edge X-ray Absorption Spectroscopy (NEXAFS) is a widely used tool for the chemical analysis of organic materials. Sensitivity of this spectroscopic technique is based on spectral relationships such as functional group identity, oxidation states and ...
Bhangu, Karnvir Singh
core   +1 more source

NEXAFS Spectra Simulations of Nitrogen-Bearing Heterocycles

open access: yesACS Omega
Five-membered heterocyclic compounds containing nitrogen atoms are important biomolecule building blocks. In addition to their fundamental biological importance, these molecular structures are used in several technological applications. Consequently, it is essential to develop techniques that allow the characterization of these fundamental systems.
Ricardo R. Oliveira   +2 more
doaj   +3 more sources

NEXAFS study of carbonate substituted bioapatite

open access: yesJournal of Physics: Conference Series, 2021
Abstract The investigation of unique carbonate substituted bioapatite of Champsocephalus gunnari icefish jaw and skull bones was carried out using NEXAFS spectroscopy. It has been established that these bones contain the B-type carbonate substituted hydroxyapatit with a content [CO3]2- anion of about 0.79-3.07 wt.%.
O V Petrova, K A Bakina, H Ehrlich
openaire   +1 more source

X-ray and Synchrotron FTIR Studies of Partially Decomposed Magnesium Borohydride

open access: yesEnergies, 2022
Magnesium borohydride (Mg(BH4)2) is an attractive compound for solid-state hydrogen storage due to its lucratively high hydrogen densities and theoretically low operational temperature. Hydrogen release from Mg(BH4)2 occurs through several steps.
Rashmi Dahal   +5 more
doaj   +1 more source

Magnetic susceptibility and NEXAFS, EPR spectra of co-doped Bi3NbO7

open access: yesJournal of Materials Research and Technology, 2020
The methods of NEXAFS, EPR spectroscopy and static magnetic susceptibility were used to analyze the condition and nature of exchange interaction of paramagnetic cobalt atoms within the bismuth niobate Bi3NbO7 matrix.
L.V. Rychkova   +7 more
doaj   +1 more source

Aging induced changes on NEXAFS fingerprints in individual combustion particles [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
Soot particles can significantly influence the Earth's climate by absorbing and scattering solar radiation as well as by acting as cloud condensation nuclei.
V. Zelenay   +13 more
doaj   +1 more source

Linear dichroism in 3d transition metal NEXAFS of correlated materials [PDF]

open access: yes, 2001
Investigations of 3d transition metal (TM) compounds by means of linear dichroism in TM K-NEXAFS will be reported. At this, the decomposition of the angular-dependent NEXAFS into orbital projected components are important problems.
Sergey Bocharov   +7 more
core   +1 more source

NEXAFS study of electronic and atomic structure of active layer in Al/indium tin oxide/TiO2 stack during resistive switching

open access: yesScience and Technology of Advanced Materials, 2016
We have studied the stability of the resistive switching process in the Al/(In2O3)0.9(SnO2)0.1/TiO2 assembly grown by atomic layer deposition. Besides electrical characterization the effect of electric field on the atomic electronic structure of the TiO2
Elena Filatova   +6 more
doaj   +1 more source

Phase transition of BiNb1−xMnxO4−δ: Thermal analyse, NEXAFS, XPS and ESR-study

open access: yesReviews on Advanced Materials Science, 2019
The manganese-doped polymorphs of bismuth orthoniobate were studied using thermal analysis, ESR, XPS and NEXAFS spectroscopy. It was shown that the phase transition from the orthorhombic (α) to the triclinic (β) modification can be reversible and it can ...
Zhuk Nadezhda A.   +8 more
doaj   +1 more source

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