Dr. Zishan Husain Khan is an Associate Professor (Applied Physics) at the Department of Applied Sciences & Humanities, Faculty of Engineering & Technology, Jamia Millia Islamia University, New Delhi, India. He specializes in nanotechnology with special emphasis on carbon nanotubes, semiconducting nanostructures and nanochalcogenides.  His work on the fabrication of a field-effect transistor (FET) based on an individual carbon nanotube using e-beam lithography and its I-V characteristics was significant. He has also studied the electrical transport properties and field emission properties of bulk carbon nanotubes and has contributed to the field of oxide semiconductors and synthesized zinc oxide (ZnO) nanostructures for various applications.