La plateforme AFM permet d'utiliser la microscopie confocale Raman et l'AFM de façon entièrement intégrée pour les spectroscopies optiques exaltées par effet de pointe, telles que la spectroscopie Raman exaltée par effet de pointe (TERS) ou la photoluminescence exaltée par effet de pointe (TEPL), mais aussi pour les mesures AFM-Raman colocalisées.
Les nombreuses techniques AFM (microscopie à force atomique) qui permettent d'étudier les propriétés topographiques, électriques et mécaniques sont compatibles avec toutes les sources laser disponibles dans un spectromètre Raman, ou avec une autre illumination externe (par exemple, un simulateur solaire ou une autre source réglable ou continue). Les spectroscopies TERS et TEPL peuvent fournir des informations chimiques et structurelles à l'échelle nanométrique, faisant de la plateforme AFM-Raman un système bidirectionnel au sein duquel des techniques complémentaires s'échangent de nouvelles fonctions uniques d'imagerie.
The combination of Atomic Force Microscopy (AFM) and Raman spectroscopy provides deep insights into the complex properties of various materials. While Raman spectroscopy facilitates the chemical characterization of compounds, interfaces and complex matrices, offering crucial insights into molecular structures and compositions, including microscale contaminants and trace materials. AFM provides essential data on topography and mechanical properties, such as surface texture, adhesion, roughness, and stiffness at the nanoscale.
Read moreThe growing of semiconductor materials industrialization requires technologies to characterize their properties. Optical microspectroscopic platforms like Raman microscopes offer both physical and chemical information in one system. Thus, process qualification, wafer uniformity assessment, or defects inspection of wafers can be achieved with Raman microscopy. These can also be applied to new materials characterization.
In this webinar, we will highlight how Photoluminescence and Raman microscopies can address semiconductor challenges. We will also show how the combination of micro-spectroscopies with AFM (Atomic Force Microscopy) can provide nano resolution and deeper understanding of these structures.
Read moreTrue colocalized topographic, electrical, and chemical characterization of exfoliated graphene flakes
Graphene, a single layer of carbon atoms arranged in a two-dimensional honeycomb lattice, exhibits remarkable electrical, thermal, and mechanical properties, making it a subject of extensive research in various scientific fields.
Read moreTrue colocalized topographic, electrical, and chemical characterization of Van der Waals heterostructures
Van der Waals heterostructures, with their unique properties arising from the weak interlayer coupling and strong in-plane bonding, offer exciting opportunities for the design of novel materials with tailored electronic, optical, and mechanical properties.
Read moreThe 10th International Conference on Advanced Applied Raman Spectroscopy (RamanFest 2023) will feature presentations from world-leading Raman experts and researchers using the technique across varied applications within life science, materials science, and energy and environmental analysis. It will bring together the world's Raman community to share, learn and discuss how Raman spectroscopy is being applied to today's problems and pioneering tomorrow's capabilities.
Official websiteTERS characterization of pyrolyzed lipid nanotubes for the fabrication of nano-electrodes
For thirty years there has been a research focused onto carbonization of 3D structures especially to be employed in electronic applications. These structures are prepared with the help of lithography and pyrolyzed afterwards. For making features below 100 nm, a bottom-up approach using lipids nanotubes is attempted.
Read moreNanoscale chemical imaging of Single- to Few-Layer Ti₃C₂Tₓ MXene
MXenes is the largest and fastest growing 2D materials. They have unique properties such as good conductivity and a hydrophilic surface. The control of nanoscale composition would ultimately allow for engineering properties locally, gaining more control over the 2D material-based systems.
Read moreTERS Nano-localization of SERS hot spots
Surface-enhanced Raman scattering (SERS) is a powerful plasmonics-based analytical technique for biosensing. SERS effect relies on nanostructures that need to be designed to maximize enhancement factors and molecular specificity. In addition to numerical modeling, an analytical tool capable of imaging localized enhancement would be an added value.
Read moreNon-destructive and label-free hyperspectral chemical imaging of phospholipid bilayers with spatial resolution of 7 nm
Phospholipid bilayers, major constituents of membranes act as a barrier of selective permeability for the nanoparticles now largely into our environment. Studying the interactions between nanoparticles and cellular membranes requires a molecular chemical probe with nanometer resolution capability.
Read moreEmergence of organic memristors has been hindered by poor reproducibility, endurance stability scalability and low switching speed. Knowing the primary driving mechanism at the molecular scale will be the key to improve the robustness and reliability of such organic based devices.
Read moreAFM-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 imaging of GO surface. The multi-parameter measurement methodology proposed in this note extends the capability of TERS allowing a direct correlation of local chemical composition and physical properties at the nanoscale not only for 2D materials but for almost any sample surface.
Read moreThis application note reveals the key instrumental details to succeed in TERS measurements in liquids using side illumination/collection geometry. Such capability aims at bringing breakthroughs in many applications such as heterogeneous catalysis, electrochemistry, cellular biology and biomaterials. In this note, nanoscale chemical imaging of graphene oxide flakes and carbon nanotubes immersed in water is demonstrated with a TERS resolution down to 20 nm along with true non-contact AFM images.
Read moreA new concern for human health is now raised by sub-23 nm particles emitted by on-road motor vehicles. Beyond measuring particle number and mass, it is also critical to determine the surface chemical composition of the nanoparticles to understand the potential reactivity with the environment.
Read moreThis application note reports on nano-characterization of 2D transition metal dichalcogenides (TMDCs) materials which are considered of very high potential semiconductors for future nanosized electronic and optoelectronic devices. Scanning probe microscopy giving access to the critical topographic and electronic properties at the nanoscale is coupled to photoluminescence (PL) and Raman spectroscopies by means of plasmon enhancement to yield correlated electrical and chemical information down to the nanoscale.
Read moreAFM-Raman pour l'imagerie physique et chimique
AFM-Raman pour l'imagerie physique et chimique
Nanoscopie corrélative directe en temps réel
Plateforme optique AFM
AFM autonome avancée
Couplage optique AFM polyvalent
AFM et microscopie à lumière inversée
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