Results 101 to 110 of about 9,887 (194)

Quasi-freestanding and single-atom thick layer of hexagonal boron nitride as a substrate for graphene synthesis

, 2010
We demonstrate that freeing a single-atom thick layer of hexagonal boron nitride (hbn) from tight chemical bonding to a Ni(111) thin film grown on a W(110) substrate can be achieved by intercalation of Au atoms into the interface.
Adamchuk, V. K., Grueneis, A., Haberer, D., Laubschat, C., Lund University., Preobrajenski, Alexei,, Sachdev, H., Usachov, D., Vyalikh, D. V.   +8 more
core   +1 more source

Spin-resolved NEXAFS from resonant X-ray scattering (RXS)

Journal of Synchrotron Radiation, 2001
Resonantly excited metal K core line spectra of NiO, MnO, CoO and other compounds have been investigated at the beamlines X21 (NSLS/BNL), BW1 and W1.1 (HASYLAB/DESY). From analysis of spectral data we have drawn the following conclusions: -spin conservation is valid in the scattering process, for excitations below the absorption threshold as well as ...
Dräger, G., Kirchner, Th., Bocharov, S., Kao, C.-C.   +3 more
openaire   +3 more sources

Beagle: a near-edge X-ray absorption fine-structure spectroscopy data processing solution for beamline experiments at Pohang Accelerator Laboratory

Journal of Synchrotron Radiation
Near-edge X-ray absorption fine-structure (NEXAFS) spectroscopy is a powerful tool for identifying chemical bonding states at synchrotron radiation facilities. Advances in new materials require researchers in both academia and industry to measure tens to
Jae Yeon Park, Minwoong Lee, Seong-Hoon Jeong, Han-Koo Lee   +3 more
doaj   +1 more source

Análise por componentes principais de espectros nexafs na especiação do molibdênio em catalisadores de hidrotratamento Principal component analysis of nexafs spectra for molybdenum speciation in hydrotreating catalysts

Química Nova, 2010
Bulk and supported molybdenum based catalysts, modified by nickel, phosphorous or tungsten were studied by NEXAFS spectroscopy at the Mo L III and L II edges.
Arnaldo da C. Faro Jr, Victor de O. Rodrigues, Jean-G. Eon, Angela S. Rocha   +3 more
doaj   +1 more source

Azobenzene versus 3,3',5,5'-tetra-tert-butyl-azobenzene (TBA) at Au(111): Characterizing the role of spacer groups

, 2010
We present large-scale density-functional theory (DFT) calculations and temperature programmed desorption measurements to characterize the structural, energetic and vibrational properties of the functionalized molecular switch 3,3',5,5'-tetra-tert-butyl ...
Bronner, Christopher, McNellis, Erik R., Meyer, Jorg, Reuter, Karsten, Tegeder, Petra, Weinelt, Martin   +5 more
core   +1 more source

Effect of co-adsorption dye on the electrode interface (Ru complex/TiO2) of dye-sensitized solar cells

AIP Advances, 2013
The co-adsorption interface structure of isothiocyanate (R-N=C=S) in N719 dye was investigated using a system of N719 alone and an N719 + D131 co-adsorption system.
M. Honda, M. Yanagida, L. Han
doaj   +1 more source

Observation of Magnetic Edge State and Dangling Bond State on Nanographene in Activated Carbon Fibers

, 2011
The electronic structure of nanographene in pristine and fluorinated activated carbon fibers (ACFs) have been investigated with near-edge x-ray absorption fine structure (NEXAFS) and compared with magnetic properties we reported on previously.
D. J. E. Ingram, J. Stohr, Kazuyuki Takai, Kenta Amemiya, Manabu Kiguchi, Ryohei Sumii, T. L. Makarova, Toshiaki Enoki, V. L. Joseph Joly   +8 more
core   +1 more source

Effect of the fluorination technique on the surface-fluorination patterning of double-walled carbon nanotubes

Beilstein Journal of Nanotechnology, 2017
Double-walled carbon nanotubes (DWCNTs) are fluorinated using (1) fluorine F2 at 200 °C, (2) gaseous BrF3 at room temperature, and (3) CF4 radio-frequency plasma functionalization.
Lyubov G. Bulusheva, Yuliya V. Fedoseeva, Emmanuel Flahaut, Jérémy Rio, Christopher P. Ewels, Victor O. Koroteev, Gregory Van Lier, Denis V. Vyalikh, Alexander V. Okotrub   +8 more
doaj   +1 more source

Correlation of conductivity and angle integrated valence band photoemission characteristics in single crystal iron perovskites for 300 K < T < 800 K: Comparison of surface and bulk sensitive methods

, 2010
A single crystal monolith of La0.9Sr0.1FeO3 and thin pulsed laser deposited film of La0.8Sr0.2Fe0.8Ni0.2O3 were subject to angle integrated valence band photoemission spectroscopy in ultra high vacuum and conductivity experiments in ambient air at ...
Braun, A., Conder, K., Erat, S., Gauckler, L. J., Graule, T., Liu, Z., Mao, S. S., Mun, B. S., Mäder, R., Pomjakushina, E., Sun, Y., Zhang, X.   +11 more
core   +1 more source

Probing molecular orientation of donors and acceptors in all-polymer blend films by near-edge x-ray absorption fine structure spectroscopy

JPhys Materials
The molecular orientation is crucial for the efficiency of organic solar cells. A face-on orientation, in which the $\pi - \pi $ stacking direction is oriented perpendicular to the substrate, is typically preferred because it enhances vertical charge ...
Leticia P Christopholi, Zewdneh Genene, Cleber F N Marchiori, Stela Andrea Muntean, Ergang Wang, Ellen Moons   +5 more
doaj   +1 more source