raman – TechConnect Briefs

A.C. Conductivity and Electric Modulus Studies of LiNi1/3Mn1/3Co1/3O2 Cathode Thin Films Grown by Pulsed Laser Deposition Technique

Arumugam R., Prasad K.H., Satyanarayana N., Srinadhu E.S., Pondicherry University, IN

Cathode, anode, and electrolyte materials are the major parts of the lithium batteries, of which, cathode material plays an important role in lithium battery technology. Recently, LiNi1/3Co1/3Mn1/3O2, which is composed of divalent Ni, tetravalent Mn, [...]

Characterization of Inkjet-printed Explosive Materials

Farrell M.E., Holthoff E.L., Marcus L.S., Pellegrino P.M., US Army Research Lab, US

The requirement to detect hazardous materials at both point and standoff distances has led to the development of laser-based hazard detection systems with immediate application for the security and safety of the US military, national [...]

The Effect of Sintering Conditions on the Formation of Hydroxyapatite-Boron Nitride Nanocomposites

Ay N., Bakan F., Gecgin M., Goncu Y., Sezen M., Sabanci University, TR

Being the main inorganic constitution of hard tissues (bone and teeth),calcium phosphates has been applied in medical and dental applications in hard tissue repair. Hydroxyapatite (HAp) ceramics have attracted attention because of their excellent osteoconductive [...]

Promoter-free continuous synthesis of high purity single wall carbon nanotube fibers

Koziol K.K.K., Paukner C., University of Cambridge, UK

We report a new strategy towards the control of carbon nanotube (CNT) structure and continuous fiber formation using a floating catalyst direct spinning CVD process. In the procedures used to date, a sulphur promoter precursor [...]

Raman Imaging for Characterization of Novel Multi-Layer Solid Dosage Forms

Rzhevskii A., Thermo Fisher Scientific, US

Multi-layer tablets, combination drug formulations and other innovative dosage forms are getting increasing attention in pharmaceutical industry. As structure and composition of the multi-layer dosages become more complicated, the development and application of techniques for [...]

Synthesis and characterization of carbon nanotubes by catalytic decomposition of acetylene with Fe/Co/MgO, Co/Zn/Al and (C5H7O2)3Mn/Al as catalysts

Dikio E.D., Vaal University of Technology, ZA

We report our studies on the effect of various catalysts in the synthesis of carbon nanomaterials. The as-prepared carbon nanomaterials were characterized by Raman spectroscopy, high resolution transmission electron microscopy and X-ray diffraction. The catalysts [...]

Introduction to Raman Spectroscopy as a Characterization Tool for Carbon Nanotubes, Graphene, and other Carbon Nanostructures

Hodkiewicz J., Wall M., Thermo Fisher Scientific, US

While there have been many publications produced in which Raman spectroscopy has been used to characterize various aspects of carbon nanostructures, there have been few works published which provide an overview of what the technique [...]

Characterization of Microcrystalline and Amorphous Thin Film Silicon Devices with Raman Spectroscopy

Hodkiewicz J., Wall M., Thermo Fisher Scientific, US

Raman spectroscopy is highly sensitive to even slight changes in morphology of highly symmetrical, covalently bonded materials making it an ideal technique to characterize Silicon films. Furthermore, Raman spectroscopy is relatively insensitive to glass making [...]

Characterization of Microcrystalline and Amorphous Thin Film Silicon Devices with Raman Spectroscopy

Hodkiewicz J., Wall M., Thermo Fisher Scientific, US

Raman spectroscopy is highly sensitive to even slight changes in morphology of highly symmetrical, covalently bonded materials making it an ideal technique to characterize Silicon films. Furthermore, Raman spectroscopy is relatively insensitive to glass making [...]

Surface Enhanced Raman Utilizing Magentic Core Silver Shell Nanoparticles

Glaspell G.P., UACE ERDC, US

SERS is an extremely sensitive technique exploited in laboratory investigations to provide single molecule detection. In sensor applications, this sensitivity has not been fully realized in part due to the low scattering efficiency. We hypothesize [...]