MSE Colloquium Jiwoong Park

Jiwoong Park

University of Chicago

Professor

Faculty Host: Xi Ling

Student Host: Tianshu Li

Refreshments at 2:45 PM

Atomically Thin Integrated Circuits

Abstract:

Manufacturing of paper, which started two thousand years ago, simplified all aspects of information technology: generation, processing, communication, delivery and storage. Similarly powerful changes have been seen in the past century through the development of integrated circuits based on silicon. In this talk, I will discuss how we can realize these integrated circuits thin and free-standing, just like paper, using two-dimensional materials and how they can impact the modern information technology. In order to build these atomically thin circuits, we developed a series of approaches that are scalable and precise. They include wafer-scale synthesis of three atom thick semiconductors and heterojunctions (Nature, 2015; Science 2018), a wafer-scale patterning method for one-atom-thick lateral heterojunctions (Nature, 2012), and atomically thin films and devices that are vertically stacked to form more complicated circuitry (Nature, 2017). Once realized, these atomically thin circuits will be foldable and actuatable, which will further increase the device density and functionality. The fact that these circuits could be realized and function without any substrate will allow them to be used tether-free (or wirelessly) in environments not previously accessible to conventional circuits, such as water, air or in space.

Bio:

Jiwoong Park is a chemist and nanotechnologist at the University of Chicago, where he has been a Professor of Chemistry and of the Institute of Molecular Engineering since 2016. Before coming to UChicago, Park was a faculty member in chemistry and chemical biology at Cornell University. Park was born and raised in Seoul, South Korea, and finished his undergraduate degree in physics at Seoul National University in 1996 and received a PhD from the University of California, Berkeley in 2003. After three years of an independent postdoctoral fellowship at Harvard University’s Rowland Institute, he started his research group at Cornell University in 2006. He has received the NSF CAREER award, the Presidential Early Career Award for Scientists and Engineers, and the Alfred P. Sloan Research Fellowship. He has published over 70 papers to date with 13 papers in Nature and Science. Park serves as an associate editor for the journal Nano Letters and a number of his patents have been commercialized by multi-national semiconductor companies.