Event Details

Scalable integration of high-performance III–V semiconductors with mainstream and unconventional substrates is a long-standing bottleneck for next-generation electronics and photonics. Templated liquid-phase (TLP) growth sidesteps lattice-matching constraints by crystallizing compound semiconductors from microliter metallic melts patterned on the target surface In this talk, we will overview the science and technology of templated liquid phase (TLP) growth of compound semiconductors on metals, oxides, and silicon. First, we will first discuss how growth from a microscale liquid differs from vapor phase growth techniques and the technological consequences of this difference for control of crystallinity and formation of defects on amorphous substrates. We will then highlight the results of growth on oxides and metals, including a demonstration of growth on non-planar substrates. Second, we will discuss devices enabled by TLP growth, including solar cells, transistors, and synaptic devices. Third, we will discuss how this approach enables a new route for defect filtering of III-Vs on Si, showing an experimental demonstration of 100x-1000x filtering across an MOCVD InP to TLP InP homojunction. Finally, we show heteroepitaxial capabilities unique to TLP, focusing on an atomically sharp lateral junction between materials with dissimilar lattices—demonstrated by an InP-Sn₄P₃ interface grown in a single step.

July 11, 2025

Join Zoom Meeting
https://usc.zoom.us/j/97017422125?pwd=Dbrt8MNMrmBV3xalKQJcAiNsggFJjJ.1&from=addon
Meeting ID: 970 1742 2125
Passcode: 937624

Host: Steve Crago
POC: Amy Kasmir

Speaker Bio

Professor Rehan Kapadia joined the faculty of the University of Southern California in the Ming Hsieh Department of Electrical and Computer Engineering in July 2014. He currently holds the Colleen and Roberto Padovani Early Career Chair, and serves as Director of MOSIS 2.0 and Director of the John O’Brien Nanofabrication Laboratory. 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, he was a National Science Foundation Graduate Research Fellow and winner of the David J. Sakrison Memorial Prize for outstanding research. At USC, he is the recipient of AFOSR and ONR Young Investigator Awards and the Peter Mark Memorial Award from the AVS. His interests lie at the intersection of material science and electrical engineering focusing on non-equilibrium electron devices, and materials growth technologies for next-generation electronic and photonic devices.