Abstract: The last fifteen years have seen the most spectacular rise of a class of materials initially known as the hybrid halide perovskites, with the field quickly evolving to include all-inorganic halide perovskites and low-dimensional hybrid halide materials derived from the perovskite structure. Their photovoltaic, light-emissive, and detection properties have reached superlative performance levels within this exceptionally short period and have taken the world by surprise.
Along with the intense effort to further improve efficiency, stability, and other technological aspects, there is a considerable effort in understanding the origin of such exceptional attributes.
I shall discuss some historical aspects of this field of study and some of the recent results identifying the underlying scientific issues and then follow it up with some discussions based on our efforts to understand the physical properties of these materials, with a few examples, some of which will go beyond the usually discussed optoelectronic and electrooptical properties.

About the Speaker: Prof. Dipankar Das Sarma or popularly known as D.D. Sarma is a Professor of Solid State and Structural Chemistry at the Indian Institute of Science, Bangalore. He is known for his researches in the fields of Solid State Chemistry, Spectroscopy, Condensed Matter Physics, Materials Science, and Nanoscience. He is a former MLS Chair Professor of Physics and Chairman of the Centre for Advanced Materials and the GAST Professor of Uppsala University, Sweden. Prof. Sarma is the recipient of TWAS Physics Prize and the UNESCO Biennial Javed Husain Prize. He was honored by the Council for Scientific and Industrial Research (CSIR), Government of India, in 1994, with the Shanti Swarup Bhatnagar Prize for Science and Technology. He is an elected Fellow of the American Physical Society, The Academy of Sciences for the Developing World, the National Academy of Sciences, India, and the Indian Academy of Sciences. He also holds a fellowship of the Asia-Pacific Academy of Materials (APAM)and is a J. C. Bose National Fellow and Homi Bhabha Fellow.

Looking forward to your active participation.

With Regards,

Department of Physics & Department of Chemistry