Results 111 to 120 of about 1,612,967 (382)

Surface-enhanced Raman spectroscopy in 3D electrospun nanofiber mats coated with gold nanorods

, 2015
Nanofibers functionalized by metal nanostructures and particles are exploited as effective flexible substrates for SERS analysis. Their complex three-dimensional structure may provide Raman signals enhanced by orders of magnitude compared to untextured ...
Camposeo, A., Gucciardi, P. G., Magrì, D., Maragò, O. M., Moffa, M., Persano, L., Pisignano, D., Spadaro, D.   +7 more
core   +1 more source

Stabilizing Cationic Palladium Single‐Atom Sites on Heteroatom‐Doped Carbon for Selective Hydrogen Peroxide Electrosynthesis

Advanced Functional Materials, EarlyView.
In this research, it is demonstrated that dual nitrogen and sulfur doping in hollow carbon spheres creates a tunable coordination environment that stabilizes cationic Pd single atoms as robust organometallic complexes, enabling high selectivity and stability for electrochemical hydrogen peroxide production under harsh acidic and peroxide‐rich ...
Guilherme V. Fortunato, Alexander Gunnarson, Hannaneh Hosseini, Xiangyu You, Pallabi Bhuyan, Ji Sik Choi, Hyo Sang Jeon, Xingshen Zhao, Julio C. Lourenço, Sumin Lim, Huize Wang, Ana Guilherme Buzanich, Martin Radtke, Paul Paciok, Marcos R.V. Lanza, Ferdi Schüth, Marc Ledendecker   +16 more
wiley   +1 more source

From polarized to polarimetric Raman spectroscopy

EPJ Web of Conferences, 2010
Raman spectroscopy is widely used in many areas of research and technology such as chemical analysis and material properties characterization. “Classic” Raman spectroscopy traditionally neglecting the polarization-of-light aspect, polarized Raman ...
Ossikovski R., Richert M., Frigout A.
doaj   +1 more source

High order vibration modes of glass embedded AgAu nanoparticles

, 2009
High resolution low frequency Raman scattering measurements from embedded AgAu nanoparticles unveil efficient scattering by harmonics of both the quadrupolar and the spherical modes.
Adichtchev, S., Bachelier, G., Duval, E., Etienne, S., Mermet, A., Saviot, L., Sirotkin, S., Stephanidis, B.   +7 more
core   +3 more sources

Tracking the Dynamic and Interactive Metal Oxidation Changes in CoFe, CoNi, and NiFe Bimetallic Hydroxides for Electrocatalytic Oxygen Evolution

Advanced Functional Materials, EarlyView.
Operando hard X‐ray absorption spectroscopy is applied to track the dynamic and interactive metal oxidation changes in iron group bimetallic hydroxides under different chemical and electrochemical conditions. It shows that Co and Fe oxidation are relatively equal and synchronized in CoFeOxHy.
Jinzhen Huang, Adam H. Clark, Juliana Bruneli Falqueto, Erica D. Clinton, Kenneth Crossley, Thomas J. Schmidt, Emiliana Fabbri   +6 more
wiley   +1 more source

Resonant Raman Scattering by quadrupolar vibrations of Ni-Ag Core-shell Nanoparticles

, 2002
Low-frequency Raman scattering experiments have been performed on thin films consisting of nickel-silver composite nanoparticles embedded in alumina matrix.
B. Palpant, B. Palpant, E. Duval, E. Duval, E. Duval, Emmanuel Cottancin, Eugène Duval, G. Mariotto, H. Lamb, H. Portales, H. Portales, Hervé Portales, J. Wittmer, J.-L. Rousset, Jean Lermé, Lucien Saviot, M. Gaudry, M. Pellarin, Michel Broyer, Michel Pellarin, Mélanie Gaudry   +20 more
core   +3 more sources

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

Advanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra, Paul Konrad, Andreas Sperlich, Timur Biktagirov, Wolf Gero Schmidt, Lesley Spencer, Igor Aharonovich, Sven Höfling, Vladimir Dyakonov   +8 more
wiley   +1 more source

Probing methane in Uranus’ upper stratosphere using HST observations of the 1280 Å Raman feature

Astronomy & Astrophysics
We analysed far-ultraviolet (FUV) spectra of Uranus obtained by the HST STIS and COS instruments in 2012 and 2014, respectively, to determine the brightness of Raman-scattered Lyman-alpha (Lyα) emissions centred at 1280 Å (hereafter, the Raman feature ...
Joshi Sushen, Roth Lorenz, Chaufray Jean-Yves, Gladstone Randy, Ivchenko Nickolay, Strobel Darrell, Lamy Laurent   +6 more
doaj   +1 more source

Angle-/temperature-dependence of Raman scattering in layered NbSe3 crystal

AIP Advances, 2017
Distinguishing the lattice vibrational modes of different Raman peaks and further studying the temperature-dependent behaviour of the different Raman modes are fundamental subjects for Raman spectroscopy of single crystal.
Haiping Chen, Zehao Ma, Yanjie Shao, Zia ur Rehman, Ke Zhang, Qun He, Li Song   +6 more
doaj   +1 more source

Interplay of structural and electronic phase separation in single crystalline La(2)CuO(4.05) studied by neutron and Raman scattering

, 2004
We report a neutron and Raman scattering study of a single-crystal of La(2)CuO(4.05) prepared by high temperature electrochemical oxidation. Elastic neutron scattering measurements show the presence of two phases, corresponding to the two edges of the ...
A. V. Yeremenko, A.A. Zakharov, A.M. Balagurov, B. Keimer, B. Stadlober, B.O. Wells, B.O. Wells, C. Kendziora, D. Vaknin, D.J. Scalapino, E.J. Ansaldo, E.Ya. Sherman, F.C. Chou, F.C. Chou, G. Güntherodt, G. Kotliar, J. Burgy, J. Chen, J. M. Tranquada, J.D. Jorgensen, J.E. Schirber, K. Semba, K.B. Lyons, L. A. Kurnevich, L.V. Gasparov, M. Kall, M. Matsuda, M. Opel, M.A. Kastner, O.V. Misochko, P. Lemmens, P. M. Gehring, P. Monthoux, P.C. Hammel, P.G. Radaelli, P.G. Radaelli, P.M. Grant, R. Hackl, R. Hackl, R.S. Decca, S. Chakravarty, S. N. Barilo, S. Sugai, S. Sugai, S. V. Shiryaev, S.L. Cooper, S.L. Cooper, S.M. Anlage, T. Staufer, T.E. Mason, T.P. Devereaux, T.P. Devereaux, V. P. Gnezdilov, V.J. Emery, V.J. Emery, V.Yu. Pomjakushin, W. Wagener, X. Xiong, X.K. Chen, X.K. Chen, X.K. Chen, X.K. Chen, X.K. Chen, X.K. Chen, Y. Ando, Y. Endoh, Y. Fukuzumi, Yu. G. Pashkevich   +67 more
core   +1 more source