Results 71 to 80 of about 2,195,413 (379)

Integrated waveguide and nanostructured sensor platform for surface-enhanced Raman spectroscopy

open access: yes, 2014
Limitations of current sensors include large dimensions, sometimes limited sensitivity and inherent single-parameter measurement capability. Surface-enhanced Raman spectroscopy can be utilized for environment and pharmaceutical applications with the ...
Charlton, M.D.B   +5 more
core   +1 more source

Transient coherent Raman scattering in the time and frequency domain [PDF]

open access: yes, 1980
A new type of Raman spectroscopy is presented: After transient excitation of molecular modes coherently scattered Raman spectra are investigated in a depayed probing experiment.
Akhmanov   +13 more
core   +1 more source

Surface Modification of Fluorine‐Free Superhydrophobic Materials with (Ultra‐)Thin TiO2 Layers

open access: yesAdvanced Engineering Materials, EarlyView.
Significant changes in wettability, with a reduction of 60o in the water conduct angle, are reported via the surface modification of fluorine‐free superhydrophobic thin films, prepared by aerosol‐assisted chemical vapor deposition, after coating a 4 nm layer of titanium dioxide on the surface using atomic layer deposition.
Julie Jalila Kalmoni   +2 more
wiley   +1 more source

A vibrational spectroscopic study of plancheite Cu 8Si 8O 22(OH) 4-H2O [PDF]

open access: yes, 2012
Planchéite Cu8Si8O22(OH)4•H2O is a hydrated copper hydroxy silicate. The objective of this work is to use Raman and infrared spectroscopy to determine the molecular structure of planchéite.
Frost, Ray, Xi, Yunfei
core   +2 more sources

3D‐Printable Near‐Infrared‐Responsive Microscale Cantilever made of the Composite Consisting of Ceramic Particles and Graphene Flakes

open access: yesAdvanced Engineering Materials, EarlyView.
A near infrared‐responsive microscale cantilever is developed using a 3D‐printable composite based on photocurable resin consisting of sepiolite and graphene flakes. The material absorbs 1064 nm light, causing shape transformation with an average displacement of 1.3 mm in 1.7 s. Displacement is measured via video recording.
Karolina Laszczyk   +3 more
wiley   +1 more source

Raman Diffusion-Ordered Spectroscopy

open access: yesThe Journal of Physical Chemistry A, 2023
The Stokes-Einstein relation, which relates the diffusion coefficient of a molecule to its hydrodynamic radius, is commonly used to determine molecular sizes in chemical analysis methods. Here, we combine the size-sensitivity of such diffusion-based methods with the structure-sensitivity of Raman spectroscopy by performing Raman diffusion-ordered ...
Robert W. Schmidt   +6 more
openaire   +5 more sources

LiVO3/LiZnVO4 Nanocomposite: High Performance Electrocatalyst for Ambient Nitrogen Reduction to Ammonia

open access: yesAdvanced Engineering Materials, EarlyView.
Lithium‐mediated electrocatalysis enables sustainable N2 fixation but hindered by parasitic Li deposition. An oxide‐oxide nanocomposite (LiVO3/LiZnVO4) structurally integrates lithium into active sites, suppressing plating and enhancing N2 activation and HER supression.
Naina Goyal   +4 more
wiley   +1 more source

Carbide-Derived Carbons: WAXS and Raman Spectra for Detailed Structural Analysis

open access: yesC, 2021
Quick characterization methods to determine the structure of carbon materials are sought after for a wide array of technical applications. In this study we present the combined analysis of the structure of carbide-derived carbons (CDCs) with Raman ...
Riinu Härmas   +10 more
doaj   +1 more source

Quantitative Analysis of Hydrogenated DLC Films by Visible Raman Spectroscopy

open access: yes, 2006
The correlations between properties of hydrogenated diamond like carbon films and their Raman spectra have been investigated. The films are prepared by plasma deposition technique, keeping different hydrogen to methane ratio during the growth process ...
Achintya Singha   +5 more
core   +1 more source

Raman spectroscopy of walpurgite [PDF]

open access: yesJournal of Raman Spectroscopy, 2005
AbstractRaman spectra of walpurgite, (UO2)Bi4O4 (AsO4)2·2H2O, recorded at 298 K and 77 K are presented and compared with infrared spectra of walpurgite and phosphowalpurgite. Bands connected with (UO2)2+, (AsO4)3−, and H2O stretch and bend, and BiO stretch are tentatively assigned.
Frost, Raymond   +3 more
openaire   +3 more sources

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