Physical Chemistry Seminar: Professor Song Jin, University of Wisconsin-Madison

 Physical Chemistry Seminar: Professor Song Jin, University of Wisconsin-Madison
Date
Tue March 29th 2022, 4:00 - 5:00pm
Location
Sapp Center Lecture Hall

Physical Chemistry Seminar: Professor Song Jin, University of Wisconsin-Madison (Host: Fang Liu)

**This seminar is available for in-person attendance.**

"Metal Halide Perovskite Nanostructures and Heterostructures: Synthesis, Fundamental Studies and Potential Applications"

About the Seminar

Metal halide perovskites are inexpensive semiconductor materials promising for high performance solar cells and light emitting diodes (LEDs) because they are easy to make and tolerant of defects. A fundamental understanding of the factors controlling the carrier transfer mechanisms in heterostructures of halide perovskites is crucial for guiding the synthetic strategies to improve properties and device applications. We developed new methods for synthesizing nanostructures of both three-dimensional (3D) perovskites and two-dimensional (2D) Ruddlesden–Popper (RP) layered perovskites, and using them to create novel and arbitrary heterostructures, such as 2D/3D perovskite, vertical and lateral 2D heterostructures, with high quality interface and tunable band alignments. Various structural characterization and time-resolved spectroscopic methods are employed to collaboratively study the carrier transfer mechanisms between these well-defined heterostructures of 2D and 3D perovskites. Finally, we design noncentrosymmetric hybrid perovskite materials for emerging ferroelectric, spintronic and quantum properties. These diverse families of perovskite materials and their nanostructures and heterostructures can enable high performance solar cells, lasers, LEDs, and spintronic applications.

About the Speaker

Prof. Song Jin received his B.S. in Chemistry from Peking University in 1997, Ph.D. in 2002 from Cornell University under the direction of Prof. Francis J. DiSalvo and carried out his postdoctoral research under the direction of Prof. Charles M. Lieber at Harvard University. Dr. Jin is interested in the chemistry, physics and technological applications of nanoscale and solid-state materials. Dr. Jin developed innovative synthesis of a variety of nanomaterials including metal chalcogenides, silicides, and halide perovskites, and discovered and developed the screw dislocation-driven growth of nanomaterials. Building on the fundamental understanding of novel physical properties, Jin advances the exploitation of (nano)materials for electrocatalysis, solar energy conversion, energy storage, optoelectronics, nanospintronics, and biotechnology. Dr. Jin has authored or co-authored over 240 publications and 8 patents. He has been recognized with a NSF CAREER Award, a Research Corporation Cottrell Scholar Award and as one of world’s top 35 innovators under the age of 35 (TR35 Award) by the MIT Technology Review Magazine, the ACS ExxonMobil Solid State Chemistry Fellowship, and the Alfred P. Sloan Research Fellowship, U. of Wisconsin-Madison Vilas Associate Award and H. I. Romnes Faculty Fellowship, and the ACS Inorganic Nanoscience Award. He also serves as a Senior Editor for ACS Energy Letters.

Research group webpage: http://jin.chem.wisc.edu/