Results 1 to 10 of about 6,042 (221)

Multi-edge NEXAFS study of non-fullerene acceptors: electronic structure and molecular orientation supported by simulations of NEXAFS angular dependence [PDF]

open access: yesRSC Advances
Near-edge X-ray absorption fine structure (NEXAFS) spectroscopy is a powerful tool to probe the electronic structure of organic semiconductors. However, the interpretation of core-level excitations in chemically complex systems remains challenging. Here,
Beatriz Molinaro Guerra   +4 more
doaj   +3 more sources

NEXAFS spectral peculiarities in Sn:SiO2 composite layer

open access: yesResults in Physics
Synchrotron-based near-edge X-ray absorption fine structure (NEXAFS) spectroscopy has been used to investigate a novel Sn:SiO2 composite thin layer grown by organometallic chemical vapor deposition technique (CVD) on a single crystalline silicon wafer ...
Vladimir Sivakov   +5 more
doaj   +4 more sources

Overview of nanoscale NEXAFS performed with soft X-ray microscopes [PDF]

open access: yesBeilstein Journal of Nanotechnology, 2015
Today, in material science nanoscale structures are becoming more and more important. Not only for the further miniaturization of semiconductor devices like carbon nanotube based transistors, but also for newly developed efficient energy storage devices,
Peter Guttmann, Carla Bittencourt
exaly   +3 more sources

Pharmaceutical Compounds Studied Using NEXAFS

open access: yesAIP Conference Proceedings, 2007
Total Electron Yield (TEY) oxygen K-edge NEXAFS detects the presence of strongly adsorbed water molecules on poloxamer-coated pharmaceutical actives, which provides a useful spectroscopic indicator for bioavailability. The results are supported by complementary XPS measurements. Carbon K-edge spectra obtained in a high-pressure NEXAFS cell were used in
Booth, Alastair   +6 more
openaire   +2 more sources

The carbon and oxygen K-edge NEXAFS spectra of CO + [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2020
We present and analyze high resolution near edge X-ray absorption fine structure (NEXAFS) spectra of CO + at the carbon and oxygen K-edges.
Rafael C. Couto   +13 more
openaire   +8 more sources

Attachment of L. ferrooxidans to Pyrite Mineral Surfaces [PDF]

open access: yesMicroorganisms
L. ferrooxidans and their metabolic products have been explored as viable flotation reagents of pyrite and chalcopyrite for froth flotation. Scanning electron microscopy (SEM), near edge X-ray absorption fine structure (NEXAFS) spectroscopy, time-of ...
Sian M. La Vars   +3 more
doaj   +2 more sources

The Identification of Cu–O–C Bond in Cu/MWCNTs Hybrid Nanocomposite by XPS and NEXAFS Spectroscopy

open access: yesNanomaterials, 2021
The results of the research of a composite based on multi-walled carbon nanotubes (MWCNTs) decorated with CuO/Cu2O/Cu nanoparticles deposited by the cupric formate pyrolysis are discussed. The study used a complementary set of methods, including scanning
Sergey Nekipelov   +2 more
exaly   +3 more sources

Measuring calcium content in plants using NEXAFS spectroscopy

open access: yesFrontiers in Plant Science, 2023
Calcium is important for the growth and development of plants. It serves crucial functions in cell wall and cell membrane structure and serves as a secondary messenger in signaling pathways relevant to nutrient and immunity responses.
Sintu Rongpipi   +11 more
doaj   +6 more sources

Temperature Dependence in the NEXAFS Spectra of n-Alkanes [PDF]

open access: yesThe Journal of Physical Chemistry A, 2018
The near edge X-ray absorption fine structure (NEXAFS) spectra of orthorhombic single crystals of n-octacosane ( n-C28H58), recorded at room temperature (298 K) and at cryogenic temperatures (93 K), show distinct differences. The characteristic carbon 1s → σ*C-H band in the NEXAFS spectrum of n-C28H58 is broader and has a lower-energy onset in its room
Sahan D. Perera   +3 more
openaire   +4 more sources

NEXAFS spectroscopy of ionic liquids: experiments versus calculations [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2017
Experimental N 1s and S 1s NEXAFS spectra are compared to TD-DFT calculated spectra for 12 ionic liquids.
Richard M. Fogarty   +13 more
openaire   +8 more sources

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