Nanomaterials

Browse Applications

MoS2/Pb nanocomposite coatings for solid lubricants application
Depth profile analysis by GDOES. Pulsed RF Glow Discharge Optical Emission Spectrometry offers ultra-fast elemental depth profiling capability for the investigation of thin and thick films. Thanks to the use of a pulsed RF source, coupled with a high resolution optical spectrometer, the GD Profiler 2 provides an excellent depth resolution, allowing the fast evaluation of the coating quality. In this application note, we focus on a MoS2/Pb composite multilayered sample, used as a solid lubricant. The analysis of such a sample shows the excellent performance of this instrument for the study of nm-thick complex coatings.
Metal Nanoparticle Applications
Metal nanoparticles (also known as colloidal metal) have been around for a very long time. Both pure metal and metal oxide colloids are used in a wide variety of applications including catalysts, ferrofluids, biological markers, and many others. Particle size and zeta potential of these suspensions are critical physical parameters that affect functionality and stability.
Nanoparticle Applications
Nanotechnology is extremely diverse, ranging from novel extensions of conventional device physics, to completely new approaches based upon molecular self-assembly and to developing new materials with dimensions on the nanoscale. Materials reduced to the nanoscale can show different properties compared to what they exhibit on a macroscale, enabling unique applications.
Quantum Dot Absorbance, Photoluminescence Spectra and Lifetimes
A-TEEM™ for Qtracker® 655 quantum dots
Quantum dots (QDs) are semiconducting spheres in the size typically in the range of 1 to 10nm. The size of these small spheres give quantum dots the semiconducting properties and resulting photoluminescence that would not necessarily occur for the same material on larger scales.
Carbon Nanotubes
Single wall carbon nanotubes (SWCNT’s) consist of rolled up single sheets of carbon atoms and, due to the high aspect ratio and nature of the C-C bonds, have unique properties. Dynamic light scattering (DLS) has become the technique of choice for characterizing nanomaterials in suspension due to its speed and ability to readily characterize a statistically significant number of particles.
Particle Analysis of CMP Slurries
The abrasive particles found in CMP slurries have a size distribution which directly affects critical metrics. Particle size analysis is therefore a key indicator of CMP slurry performance. The popularity and utility of several particle sizing techniques will be discussed within.
Measuring PL Upconversion Spectra and Lifetimes of Lanthanide-Doped Nanoparticles
Upconverting lanthanide-based nanomaterials exhibit a unique fluorescence anti-Stokes shift, which enables them to convert NIR wavelength excitation into visible shorter wavelength emissions (NIR to UV-Vis).
Ellipsometric Characterization and Modeling of Different Types of Nanoparticles
AFM picture of composite layer of Gold nanoparticles into PVA matrix.
UVISEL ellipsometers have been used for the characterization of several systems of nanoparticles. This ellipsometric characterization involves the development of specific modeling tools available within DeltaPsi2 software. Through this report we illustrate the application of ellipsometry to the characterization of nanoparticle based samples. Our goal is to demonstrate that the technique can apply within a large panel of materials science. The HORIBA ellipsometric product line offers the most versatile hardware of the UVISEL series combined with the DeltaPsi2 software including unique modeling features to get the most of your applied work on this fascinating domain of modern physics.
Near-IR System for Nanophotonics
Nanophotonics is one of the most exciting new fields to come out of nanotechnology. The quantum-confinement effects observed in these very small (~10 nm) particles can lead to unique optical properties.
Raman Imaging of a Single Gallium Nitride Nanowire: Pushing the Limits of Confocal Microscopy
Mapping of the nanowire performed by recording step-spectra at every 200 nm with an integration time of 1s.
We have performed a complete Raman polarized study of a single GaN nanowire using a confocal microscope together with a high resolution stage. The high spatial resolution of our Raman confocal instrument together with a piezoelectric stage demonstrates unambiguously the possibility to image the optical properties of nano-objects with a resolution better than 200 nm keeping the fill advantage of the polarization control under a confocal microscope.
Better Data on Carbon Nanotubes with the NanoLog
Improvements to the HORIBA Scientific NanoLog®, already the best spectrofluorometer for exploration of single-walled carbon nanotubes (SWCNTs), render it even more suitable for this application.
Ellipsometric modeling of NanoParticles
Pulsed RF GDOES for the analysis of films containing metal and metal oxide nanoparticles
Experimental Assessment of Metal Nanostructures as Effective SERS Substrates
Research in nanoscience has garnered much interest because of the different properties of small structures compared to the respective bulk material.
Photoluminescence of InGaAs/GaAs Quantum Dots
InGaAs/GaAs and InAs/GaAs quantum dots (QDs) have been identified as suitable candidates for various applications in the terahertz range by using their intraband carrier transitions.
The NanoLog Series: A New Generation of Performance
The NanoLog has a reputation as the premier instrument for the exploration of single-walled carbon nanotubes (SWCNTs).
Measuring Silica Nanoparticles via Fluorescence Anisotropy
Silica is currently one of the most important industrial materials, whose nanoparticles are formed via a sol-gel process.
Plasmon enhancement of protein fluorescence by silver nanostructures
The use of metal surfaces in conjunction with fluorescence molecules employing a plasmon effect, sometimes referred to as metal enhanced fluorescence, can be advantageous because of the possible enhancement of photophysical properties.
Nanophotonics with Fluorescence Instruments
HORIBA Jobin Yvon’s spectrofluorometers have many applications in nanophotonics research: single-walled carbon nanotubes (SWNTs), quantum dots (QDs), and organic light-emitting diodes (OLEDs). Quantum confinement affects nanomaterials’ photoluminescence: when the semiconducting nanoparticle is smaller than the bulk material’s Bohrexciton radius, the bandgap energy is inversely proportional to the nanoparticle size.
Photoluminescence Spectroscopy of Quantum Dots
Photoluminescence Spectroscopy of Quantum Dots
Quantum dots (QDs) have potential applications in optoelectronics, biosensing, biolabeling, memory devices, and sources of laser light.
Near-IR Photoluminescence of Quantum Dots
HORIBA Jobin Yvon’s NanoLog® spectrofluorometer, specially optimized for recording near-IR fluorescence from nanoparticles, includes a double-grating excitation monochromator, imaging emission spectrograph with a selectable-grating turret, and a variety of detectors.
Better Signal-to-Noise Ratios for Carbon Nanotube Spectra
Better Signal-to-Noise Ratios for Carbon Nanotube Spectra
Corrected emission spectra1 of carbon nanoparticles can provide excitation–emission matrices (EEMs) for a range of excitation wavelengths.
Fluorescence Spectra from Carbon Nanotubes with the NanoLog
Fluorescence Spectra from Carbon Nanotubes
Single-wall carbon nanotubes (SWNTs), consisting of rolled-up single sheets of carbon atoms, have received much attention recently.