Results 11 to 20 of about 4,600 (221)
NEXAFS spectral peculiarities in Sn:SiO2 composite layer
Results in PhysicsSynchrotron-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
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Pharmaceutical Compounds Studied Using NEXAFS
AIP 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
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Overview of nanoscale NEXAFS performed with soft X-ray microscopes
Beilstein 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
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The carbon and oxygen K-edge NEXAFS spectra of CO+
Physical 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
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Temperature Dependence in the NEXAFS Spectra of n-Alkanes [PDF]
The 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
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Measuring calcium content in plants using NEXAFS spectroscopy
Frontiers 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
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NEXAFS spectroscopy of ionic liquids: experiments versus calculations [PDF]
Physical 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
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Calculations of NEXAFS Spectra of Substituted Benzenes
Le Journal de Physique IV, 1997 We examine the role of substituent strengths and positions for NEXAFS spectra of substituted benzenes by means of static exchange calculations on aniline, phenol, fluorobenzene, and terephthalaldehyde. Chemical shifts and intensities of the ls → π* excitations are found to be closely related to the electronegative character of the substituent group ...
L. Yang +3 more
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The Depositional RecordFluctuations in the abundance of low‐temperature (T) dolomite have occurred throughout geologic time and have been linked to changes in hydrothermal activity, sea level and burial of organic matter suggesting ties to the global biogeochemical cycle of ...
Zach A. Diloreto +6 more
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High-Resolution Table-Top NEXAFS Spectroscopy [PDF]
Analytical Chemistry, 2022 A table-top near-edge X-ray absorption fine structure (NEXAFS) spectroscopy system consisting of a soft X-ray source and an integrated spectrometer with a significantly improved resolution is presented. The soft X-ray source is based on a long-term stable and nearly debris-free picosecond laser-induced plasma generated in a pulsed krypton gas jet ...
Jonathan Holburg +5 more
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