Menu

 Special Seminar

 Name: Prof. Gopinathan Sankar

AffiliationProfessor of Solid-state Chemistry, Department of Chemistry, University College London, 20 Gordon Street, London  

Topic:  Structure of Functional Materials – A Combined X-ray Technique Methods.

Date & Time: Monday, 8th January 2024 at 4.00 p.m.

Venue- Rajarshi Bhattacharya Memorial hall (AG02/03), Chemical Sciences Building

Abstract:
A range of functional solid-state materials have contributed enormously to societal benefits in a variety of ways, and they will continue to be indispensable to enhancing the quality of our lives.  Whilst a range of solid-state materials were discovered over the past four decades, their functionality and performance always depended on the structure or atomic arrangements.  Invariably the determined atomic architecture not only allows one to explain the functionality but also to improve the performance through understanding the structure-function relationships.  X-ray techniques in particular, X-ray Diffraction (XRD), Small Angle X-ray Scattering (SAXS), Total Scattering (PDF) and X-ray absorption Spectroscopy (XAS) are available as laboratory-based methods, however, with a higher time, special and energy resolution all these measurements are performed at a Synchrotron Radiation Source. They offer many more enhanced possibilities, and more importantly, combined techniques are becoming popular as they enhance the reliability of the structure determination at operating conditions.  A detailed discussion of these techniques with several examples of functional materials including thin films, zeolites, phase formation and transformation will be given.