Micro-Raman spectroscopyIn situ analysisSingle particleThe response of micrometric pseudo-single crystals of β-H 2 NiO 2 , deposited on an Au substrate and submitted to high rate charge/discharge cycling under controlled current conditions, is studied by in situ μ-Raman spectroscopy. The ...
The aim of this study was to investigate the spectroscopy response of Amide I depending on the OTM process duration. A model based on Gaussian–Lorentzian curves was used to analyze the infrared spectra, while only Lorentzian functions were used for Raman and SERS spectra. Changes induced by ...
Near-infrared Raman spectroscopy, an optical technique that is able to interrogate biological tissues, has been used to study bladder and prostate tissues, with the objective being to provide a first approximation of gross biochemical changes associated with the process of carcinogenesis. Prostate sample...
Surface-enhanced Raman spectroscopy (SERS) is a powerful tool for sensing, which can detect a broad range of chemical and biological analytes at the single-molecule level. In this work, a hybrid structure of Au nanodot array and high-quality graphene monolayer is used as SERS substrate, which...
Operando mu-Raman study of the membrane water content in the polymer electrolyte membrane fuel cell: Effects of gas flow-field geometry and temperatureOperando mu-Raman spectroscopyPolymer electrolyte membrane fuel cellNafion (R) hydrationGas flow-field design...
Each sample was first examined with FTIR spectroscopy as a preliminary screening step to obtain indications on the main binder, which could then be confirmed and detailed using Py/GC-MS. Some pigments and extenders could be efficiently identified by examination of the FTIR spectra and pyrolysis ...
Raman microscopyGreeceSaharan dustIn the present study, Raman spectroscopy combinedGarasCSICStylianosCSICAsvestaCSICArgyroCSICTriantafyllouCSICAthanasiosCSICG.CSICGarcia-GuineaCSICJavierCSICIordanidisCSICParticulate Science and Technology: An International Journal...
This noise-driven amplification leads to the creation of an unusual parametric Raman polariton, intertwining the Raman mode with cavity squeezing fluctuations, with smoking gun signatures in Raman spectroscopy. In the resonant regime, we show the emergence of not only quantum light amplification but ...
Raman spectroscopymixed-valent compoundsab initio calculationsruthenium(II)tetrazinesThe resonance Raman and infrared spectra of the bridging ligand 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine (bptz) have been studied. Ab initio calculations on bptz and the radical anion bptz~(.-) are...
In this paper, operando mu-Raman spectroscopy is used to probe the water content of the Nafion (R) membrane in the fuel cell (OCV around 1 V) working at constant stoichiometry and low relative humidity (20%). Water concentration profiles crossing the membrane thickness are obtained with pm ...