Studies on Excitons in Low Dimensional Nanostructures with Varied Profiles

Abstract

The advanced research on low dimensional semiconducting systems has allowed us to understand, design and fabricate the semiconducting material to construct devices at nanoscale. It is necessary to engrave the bulk semiconducting material into low dimensional systems such as quantum well, quantum wire and quantum dot with desired size and shape to develop the electrical and optical properties of the semiconductor. The low dimensional semiconductor systems of the group III V and II VI have been studied extensively for the purpose of their applications in the field of nanoscaled optoelectronic devices and solar cells. The properties of low dimensional semiconducting systems can be modified by varying the shape, well width or thickness and barrier height, since, these systems offer an extensive research for wide applications. The application of external perturbations like temperature, pressure, electric field and magnetic field to the low dimensional semiconducting system also leads to significant changes in their electrical, optical and magnetic properties. newline