M.Sc. Scholars

 

Material Research Laboratory

NAME: UMAR MUHAMMAD JIBREEL

PROGRAM: M. Sc.

BRANCH/SPECIALIZATION: Chemistry/ MATERIAL SCIENCE

NAME: Ibrahim Tasiu Salisu

PROGRAM: M. Sc.

BRANCH/SPECIALIZATION: Physics/ MATERIAL SCIENCE

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I am working on Polymer Electrolyte whereby; salt is doped into a polymer (which many years ago was used as structural materials or as electric insulator). At a certain stochiometric ratio, their ionic conductivity can be put to use as an electrolyte. After characterizing the polymer electrolyte which was synthesized and happened to meet the desired requirement it’s potential applications are in solid state electrochemical cells, high energy density batteries, fuel cells, sensor ,electrochromic devices, dye-synthesized solar cell e.t.c. They also have good processibility, flexibility, light weight, elasticity & transparency, also they have less mechanical strength, workability, time stability, ionic conductivity, e.t.c.

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The topic of my research project is on Quantum Dots (QDs). QDs are semiconductors whose excitons are confined in all three dimension of space. My focus is on cadmium based core-shell QDs. In particular, chalcogenide QDs have been increasingly explored as analytical tools in many fields. The surface atoms of QDs usually have fewer adjacent coordinate atoms and more dangling bonds, which can be thought as defects as compared with the bulk atoms. These defects may induce additional electronic states in the band gap, mix with the intrinsic states to a substantial extent. Influence the spacing of the energy levels, and lead to debase the optical properties of QDs. The main aim of my project is the synthesis of durable QDs with high quantum yield (QY) by making the surface passivation with an inorganic shell with wider band gap.

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