About Prof. Pankaj Srivastava:
Pankaj Srivastava is currently a Professor in the Department of Physics. He obtained his M.Sc. and Ph.D. degrees in Physics from University of Rajasthan, Jaipur, India. He has worked as a post-doctoral fellow at CRISMAT, Caen, France (1995) and Free University, Berlin, Germany (1996-98). He is the recipient of Alexander von Humboldt Fellowship (1996-1997) and has worked as a guest scientist at Free University, Berlin (1998) and University of Duisburg-Essen (2007) in Germany. He has extensively worked at various synchrotron facilities in Europe and has also worked as a Visiting Scientist at RRCAT, Indore (India). His interest lies in surface-interface characterization and electronic structure of technologically relevant systems viz. semiconductor-insulator surfaces and interfaces, multilayer coatings for high-density optical storage discs and magnetically switchable molecules. He has more than 100 research publications in refereed journals.
Fields of Research Interest:
(i) Surface-interface and electronic structure studies of dielectric-semiconductor systems, metal nanocomposites and functional oxides.
(ii) Electronic structure and magnetic properties of nano-composites
Recent Research Activities:
1- Study of semiconductor-insulator surfaces and interfaces
· This work focuses on the studies of silicon nitride based dielectrics on silicon and various passivants (CdTe, ZnS etc.) on Mercury Cadmium Telluride (MCT).
· For silicon nitride based dielectrics, various studies with a target to modify various properties of these dielectrics to suit the device requirement were carried out. On passivants-MCT systems, a detailed work focusing on the composition of various passivants and their interface with MCT is carried out. Very import issues like Hg out-diffusion, which in turn changes the band gap of these materials resulting in drastic changes in the device properties are addressed.
· We are also growing silicon nanostructures in silicon nitride matrix. By controlling the size and distribution of these nanostructures, the optical properties of the system can be tailored. Therefore, these studies are very much relevant for developing optoelectronic devices.
2- Understanding origin of ferromagnetism in oxides through electronic structure studies
· We are studying different oxides, especially ZnO (undoped and doped), using X-ray Absorption and Photoemission to understand their electronic structure. The outcome of these studies is being correlated with the magnetic properties of oxides.
3- Electronic structure of metal nanocomposites embedded in dielectric matrix
International Fellowships Awarded:
(i) PDF in the Indo-French Project sponsored by European Commission (June 1995-December 1995). Worked at CRISMAT , ISMRA-Universite de Caen, 14050 Caen Cedex, France.
(ii) Alexander von Humboldt (AvH) Fellowship (January 1996-Dec. 1997). Worked at Institut für Experimentalphysik, Freie Universität, Berlin, Germany.
(iii) Guest Scientist (Feb. 1998 - December 1998). Worked at Institut für Experimentalphysik, Freie Universität, Berlin, Germany
(iv) Guest Scientist (January 2007-June 2007). Worked at at Universitaet Duisburg-Essen, Germany
Number of Publications in refereed journals: More than 125
Selected recent publications:
Contact Details:
Prof. Srivastava Pankaj
Professor
Indian Institute of Technology Delhi
Hauz Khas, New Delhi-110016
Tel:+91-11-2659 6558(O)
Fax:+91-11-2658 1114
Email: pankajs@physics.iitd.ac.in