Sandip Ghosh

Biography

 Dr. Sandip ghosh is an Associate professor at the Department of Condensed Matter Physics & Materials Science , TIFR. His work focuses on electronic band structure of semiconductor crystals and physical properties that derive from it, using a variety of optical spectroscopy techniques. An understanding of such properties is crucial for their application in electronic and opto-electronic devices. He has  worked mainly on group III-V & II-VI semiconductors, with an emphasis on heterostructures which are made using layers of more than one type of semiconductor material. When such heterostructures have nanometer dimensions, it can lead to quantum confinement of the charge carriers (electrons and holes). These heterostructures can be categorized as superlattices, quantum wells, quantum wires and quantum dots depending on the number of dimensions in which the carriers are confined. Their physical properties such as effective bandgap, electronic density of states, phonon spectrum, carrier transport properties, optical polarization sensitivity etc. can be tuned by controlling their physical shape and size.

Research Interest

Optical Spectroscopy of Semiconductors.