Graphene, polymers & advanced nano-materials
Kalasalingam University, India
: J Nanomater Mol Nanotechnol
This work deals with the metal nanoparticles (like copper, silver, lead nanopowders), metal oxide nanopowders, polymers, metal polymer nano-composites and advanced material like low cost graphene material. It also explains their vast range of novel nanotechnological applications like nanofluids, heat transfer, solar panels, sensors, biotechnology, biomedical etc. Optical property like Surface Plasmon Resonance (SPR) and magnetic property like Superparamagnetism have major roles in nano-materials. SPR of nano-metallic surfaces is the incoming light results in a collective oscillation of the electrons at the metalâs surface. This plasmonics phenomenon absorbs and intensifies light at specific wavelengths. It has many promising applications which can be exploited to transmit optical signals, to interact with bio-molecules and in solar cells. Exploitation of SPR increases the photon absorption and to improve efficiency/to achieve highly efficient solar cells. Particularly, plasmonic nanoparticles having quantum yield value more than one, is the best choice of material for solar cells. Superparamagnetism improves the accuracy of spintronic sensors because a small sensed field is sufficient to order the spins in a superparamagnetic material. Such improved and accurate sensors are useful in various industrial and biomedical applications. Innovations such as âWorldâs first plant materials based superparamagnetic particlesâ can be utilized in cancer hyperthermia & imaging (MRI Contrast agent) applications. Advanced materials like Graphene and other nanomaterials are utilized in solar cells for harvesting and storage of energy. Large surface area, high surface-area-to-volume ratio and compatibility with flexible substrates of these materials make them as unique candidate for solar cells. Their incorporation in energy storage device such as super-capacitor (physical charge storage device having faster/ higher power density, lower energy density and lower internal resistance) provides balance between the energy storage and source.