Label-free detection and mapping of graphene oxide in single HeLa cells based on MCR-Raman spectroscopyGO is a 2D nanomaterial that has attracted attention in many industries in recent years, such as the chemical industry, electronics or medicine. Due to its unique properties such as strength, ...
We investigated the bending of single-walled carbon nanotubes (SWNTs) in bottom-contact SWNT devices using Raman mapping measurements. The height difference between the metal electrodes and the substrate caused the SWNTs to bend, down-shifting theG+andGbands of the bent SWNTs. No shifting of...
F. Reactivity mapping of nanoscale defect chemistry under electrochemical reaction conditions. Nat. Commun. 10, 5702 (2019). Article ADS Google Scholar Zhong, J.-H. et al. Probing the electronic and catalytic properties of a bimetallic surface with 3 nm resolution. Nat. Nanotechnol. 12, 132...
AFM-Raman and its TERS mode are used to show nanoscale surface mapping of structural defects and chemical groups on graphene oxide (GO) flakes with 10 nm spatial resolution. TERS mapping is combined with Kelvin probe force microscopy measurements for simultaneous topographical, electronic and chemical...
These analyses, thus, have to be considered as a qualitative mapping of relative ferroelectric domain orientation. Both 2D and 3D domain orientation mapping were carried out this way, whereby 3D analyses were restricted to single crystals to take advantage of the material’s transparency115. These ...
Raman and XPS.Thanks to TERS mapping with HORIBA AFM-Raman system, they couldrelate nanoscale variationsin specific vibrational and binding energy fingerprints tolocal substantial strain and charge dopingin monolayer MoS2. These results pave the way for strain and charge doping nanoengineering of MoS2...
In the case of Raman micro-spectroscopy the light passes through a microscope before reaching the sample, allowing it to be focused on an area as small as 1 µm2. This allows accurate mapping of a sample, or confocal microscopy in order to investigate stacks of layers. Care has to be ...
dispersion at the K point.Double-resonant Raman scattering.6which depends onelectronic and vibrational properties, turns out to be aningenious tool to probe the lifting of that specific degeneracy.We report on Raman mapping of single- and few-layergraphene flakes resting on a silicon oxide ...
D. et al. Surface- and tip-enhanced Raman spectroscopy reveals spin-waves in iron oxide nanoparticles. Nanoscale 7, 9545–9551 (2015). Article CAS Google Scholar Zhang, R. et al. Chemical mapping of a single molecule by plasmon-enhanced Raman scattering. Nature 498, 82–86 (2013). ...
Raman and infrared (IR) spectroscopy are powerful analytical techniques, but have intrinsically low detection sensitivity. There have been three major steps (i) to advance the optical system of the light excitation, collection, and detection since 1920s,