Stimulated X-ray Resonant Raman Spectroscopy of Conical Intersections in Thiophenol

2020 ◽  
Vol 11 (11) ◽  
pp. 4292-4297
Author(s):  
Daeheum Cho ◽  
Jérémy R. Rouxel ◽  
Shaul Mukamel
Keyword(s):  
Raman Spectroscopy ◽  
Conical Intersections ◽  
X Ray ◽  
Resonant Raman

scholarly journals Monitoring conical intersections in the ring opening of furan by attosecond stimulated X-ray Raman spectroscopy

2015 ◽  
Vol 3 (2) ◽  
pp. 023601 ◽  
Author(s):  
Weijie Hua ◽  
Sven Oesterling ◽  
Jason D. Biggs ◽  
Yu Zhang ◽  
Hideo Ando ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Ring Opening ◽  
Conical Intersections ◽  
X Ray

scholarly journals Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing

2021 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Varun Shenoy Gangoli ◽  
Chris J. Barnett ◽  
James D. McGettrick ◽  
Alvin Orbaek White ◽  
Andrew R. Barron
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Raman Spectroscopy ◽  
Photoelectron Spectroscopy ◽  
Separate Analysis ◽  
Sweet Spot ◽  
Electrical Conductor ◽  
X Ray ◽  
Resonant Raman ◽  
Carbon Nanotube Fibers

We report the effect of annealing, both electrical and by applied voltage, on the electrical conductivity of fibers spun from carbon nanotubes (CNTs). Commercial CNT fibers were used as part of a larger goal to better understand the factors that go into making a better electrical conductor from CNT fibers. A study of thermal annealing in a vacuum up to 800 °C was performed on smaller fiber sections along with a separate analysis of voltage annealing up to 7 VDC; both exhibited a sweet spot in the process as determined by a combination of a two-point probe measurement with a nanoprobe, resonant Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Scaled-up tests were then performed in order to translate these results into bulk samples inside a tube furnace, with similar results that indicate the potential for an optimized method of achieving a better conductor sample made from CNT fibers. The results also help to determine the surface effects that need to be overcome in order to achieve this.

3D-reconstruction of chemical state distributions in stratified samples by spatially resolved micro-X-ray resonant Raman spectroscopy

2017 ◽  
Vol 32 (2) ◽  
pp. 402-407 ◽  
Author(s):  
J. J. Leani ◽  
R. D. Pérez ◽  
J. I. Robledo ◽  
H. J. Sánchez
Keyword(s):  
Raman Spectroscopy ◽  
Raman Scattering ◽  
3D Reconstruction ◽  
Chemical State ◽  
X Ray ◽  
Multilayer Sample ◽  
Spatially Resolved ◽  
Resonant Raman ◽  
Resonant Raman Scattering ◽  
First Time

X-ray resonant Raman scattering was used, for the first time, in a confocal setup with the aim of determining different compounds of the same element in a copper-multilayer sample.

scholarly journals X-ray resonant Raman spectroscopy

1995 ◽  
Author(s):  
P L Cowan ◽  
T LeBrun ◽  
R D Deslattes
Keyword(s):  
Raman Spectroscopy ◽  
X Ray ◽  
Resonant Raman

Raman spectroscopy and X-ray diffraction of lithium niobate at temperatures up to 1300○-4.80pt○C

2005 ◽  
Vol 126 ◽  
pp. 101-105 ◽  
Author(s):  
B. Moulin ◽  
L. Hennet ◽  
D. Thiaudière ◽  
P. Melin ◽  
P. Simon
Keyword(s):  
Raman Spectroscopy ◽  
Lithium Niobate ◽  
X Ray Diffraction ◽  
X Ray

scholarly journals Use of WetSEM® capsules for convenient multimodal scanning electron microscopy, energy dispersive X-ray analysis, and micro Raman spectroscopy characterisation of technetium oxides

2021 ◽  
Author(s):  
D. J. Bailey ◽  
M. C. Stennett ◽  
J. Heo ◽  
N. C. Hyatt
Keyword(s):  
Raman Spectroscopy ◽  
Low Cost ◽  
Powder Materials ◽  
Spectroscopy Analysis ◽  
X Ray ◽  
Micro Raman Spectroscopy ◽  
Hazard And Risk ◽  
Sem Imaging ◽  
General User ◽  
532 Nm

AbstractSEM–EDX and Raman spectroscopy analysis of radioactive compounds is often restricted to dedicated instrumentation, within radiological working areas, to manage the hazard and risk of contamination. Here, we demonstrate application of WetSEM® capsules for containment of technetium powder materials, enabling routine multimodal characterisation with general user instrumentation, outside of a controlled radiological working area. The electron transparent membrane of WetSEM® capsules enables SEM imaging of submicron non-conducting technetium powders and acquisition of Tc Lα X-ray emission, using a low cost desktop SEM–EDX system, as well as acquisition of good quality μ-Raman spectra using a 532 nm laser.

scholarly journals Chemical constitution of polyfurfuryl alcohol investigated by FTIR and Resonant Raman spectroscopy

2021 ◽  
pp. 120090
Author(s):  
Francesco D'Amico ◽  
Maurizio E. Musso ◽  
Raphael J.F. Berger ◽  
Nicola Cefarin ◽  
Giovanni Birarda ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Polyfurfuryl Alcohol ◽  
Chemical Constitution ◽  
Resonant Raman
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