Phytochemistry and Isolation of Biologically Active Components from  Hartmannia rosea

Synthesis and characterization of silane crosslinked linear low density polyethylene/chitosan/closite composite

Synthesis, characterization  and studies of  thermal behaviour of polymer composites

On the Development of Polymer Based Chelating Resin for Solid Phase Extraction of Various Metal Ions

Synthesis  spectroscopic characterization , crystallography and microbial activity of the   NANO-organomettalic complexes

Development of thermoplastic nano-composites for sustainable environment

Synthesis and characterization of silane compatibilized polyethylene-carboxymethyl cellulose-clay nano-composite

This project is based upon synthesis and characterization of new oxohalides of iron, nickel and cadmium, which include chalcogen ions that have a stereochemically active lone pair. The new systems (M-Q-O-X where M = Ni, Fe, Cd  Q = Te, Se  X = Cl, Br)would be studied and characterized using single crystal x-ray diffraction, powder x-ray diffraction, Thermal gravimetric analysis, Scanning electron microscopy / energy dispersive x-ray, Mass spectrometry, vibrating sample magnetometer and bond valence sum calculations. The halides and chalcogen lone-pairs will typically act as chemical scissors to decrease the dimensionality of structures. All such compounds have sheets of transition metal cations arranged into layers, where the layers most often are connected through weak forces. 

Investigating the structure-property relationship of new solid compounds is a discipline that has an immense capacity of advancement, which can be used to meet the challenges of the new scientific age. Metal chalco-oxochlorides is a prestigious branch of chemistry where one could find an abundance of new compounds with a variety of different structures and properties. Also there is great diversity of various ion formations in these compounds which leads to sometimes very unique combination. 

Several metal chalco-oxochlorides have previously been prepared and studied as Cu₅Se₄Cl₂O₁₂ , Cu₉Se₄Cl₆O₁₄, Cu₃Se₂Cl₂O₆, Cu₅Se₂Cl₂O₈ , Co₅Se₄Cl₂O₁₂ , Zn₂SeCl₂O₃  etc. However, there is still a lot of space to prepare many new such materials. Such ternary compounds have attracted great attention due to their structural varieties, interesting chemical bonding and physical properties. The basic requirements for the above materials are purity, high yield and thus selective synthetic routes, easy handling, storage and non-toxicity are desired properties for material applications. 

Surface functionalization of polyethylene by chemical grafting to enhance adhesion characteristics

Modification and characterization of Carbon fillers for conductive application

Gold Nanoparticles for enhanced anticancer activity; in-vitro studies

Connectivity of nanoparticles in linear and angular pattern; model for molecular electronic studies

Development of durable & cost effective polymer electrolyte membranes for fuel cells: A step forward to fuel cell commercialization

Surface modification/characterization of carbon black with thiols

Development of Durable Anion Exchange Membranes for Solid Alkaline Fuel Cells and fabrication of its Prototype Assembly to evalluate the performance of developed electrolyte membranes

Laboratory equipment such as atomic spectrometric methods for heavy metal detection requires complex preparation, high cost and specialized laboratory and personnel. Electrochemical technique has relied on mercury-based electrodes. Mercury toxicity severely limits its application. Substitutions with disposable, robust, sensitive, and cost effective electrode by means of CME, glassy-carbon electrode (GCE) or SPE (screen printed carbon electrode) are other that present many advantages for in-situ trace determinations of heavy metal ions.  There are concerns related to long-term stability, befouling, the requisite for recalibration and renewal of the sensors in combination with the typical need of low detection limits. Selection of suitable sensing material and process optimization have to be carried out and validated to allow for reproducible and reliable analyses.

Quantum dot solar cells, which use semiconductor nanoparticles as the absorbing photovoltaic material in thin film solar cells are considered to be one of the third generation solar cells. Quantum dots get benefit of having a band gap that can be regulated easily by varying the size of the nanoparticles, or by selection of different materials, which allows them to absorb various segments of the solar spectrum from ultraviolet through visible to the infrared, resulting in power production during day and night. Quantum dots do not absorb light significantly and considerable amount of light is reflected back, which is one of the drawback of QD solar cells. This is due to the small thickness of absorbing photovoltaic material.

Metallic nanoparticles are also used in thin film solar cells independently for a different purpose that is light trapping, and are generally described as plasmonic solar cells. This property originates from surface plasmon resonance of a metallic nanoparticle, which scatters light and help absorb increased amount of incoming light, which is very important factor for thin film solar cells.

In this project, we aim to improve QD solar cells by combining chemically a quantum dot with a metallic nanoparticle, using organic linker moiety, and take advantage of both type of materials in thin film solar cells. We expect that higher efficiency of quantum dot solar cells can be achieved by chemically binding a quantum dot to a nanoparticle, compared to physical mixing of these two classes of nanoparticles.