MIT.nano Seminar Series—Hot electrons, cold materials: Building blocks for next generation semiconductor devices

Monday, May 17, 2021 at 3:00pm to 4:00pm

Virtual Event

Join us for the May MIT.nano Seminar Series!

Rehan Kapadia
Assistant Professor, Electrical & Computer Engineering
Colleen and Roberto Padovani Early Career Chair
University of Southern California

Date: Monday, May 17, 2021
Time: 3pm - 4pm EDT
Location: Zoom webinar

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Abstract

In Kapadia's group, researchers work on challenges through the lens of two questions: 

  • Can materials and devices be grown at low-temperatures and non-epitaxial substrates to enable functional diversification of CMOS platforms?
  • Can hot-electrons be used efficiently in electronic and optoelectronic devices?

In the first part of his talk, Kapadia will discuss his work on growing III-V semiconductors on non-epitaxial substrates using a combination of templated liquid phase growth (TLP) and metal-organic chemical vapor deposition (MOCVD). After discussing the basic growth processes and resulting material quality, Kapadia will highlight some recent results with TLP growth at CMOS back-end compatible temperatures of <400 degrees C.

Next, Kapadia will show how hot-electron processes can dramatically reduce the optical power densities required for photoemission. Finally, Kapadia will briefly demonstrate a hot-electron electrochemical device, where hot electrons are used to modify the reaction rates of the hydrogen evolution reaction (HER) on an electrode immersed in solution.

Read the full abstract.

Biography

Professor Kapadia joined the faculty of the University of Southern California (USC) in the Ming Hsieh Department of Electrical and Computer Engineering in July 2014 and holds the Colleen and Roberto Padovani Early Career Chair. He received his bachelors in electrical engineering from the University of Texas at Austin in 2008, and his Ph.D. in electrical engineering from the University of California, Berkeley in 2013.

During his time at Berkeley, Kapadia was a National Science Foundation Graduate Research Fellow and winner of the David J. Sakrison Memorial Prize for outstanding research. At USC, he has been the recipient of an Air Force Young Investigator Award and the AVS Peter Mark Memorial Award. His interests lie at the intersection of material science and electrical engineering, with a focus on developing next-generation electronic and photonic devices for computing applications beyond CMOS, such as bio-inspired devices and non-von Neumann computing. Additionally, Kapadia is the co-director of a recently created Center for Integrated Electronics and Biological Organisms (CIEBOrg) at USC.

Event Type

Conferences/Seminars/Lectures

Events By Interest

Academic

Events By Audience

Public, MIT Community, Students, Alumni, Faculty, Staff

Events By School

School of Engineering (SoE), School of Science

Tags

research, engineering, lecture, technology, science, Seminar, electrical engineering, nanotechnology, Nanoscience, nanoscale, electrons, electroncs, semiconductors

Website

https://mitnano.mit.edu/events/may-se...

Department
MIT.nano
Contact Email

mitnano@mit.edu

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