Dr. Bin Chen from Northwestern University Visits Aydin Group and Delivers Talk on Interfaces on High Efficiency Perovskite Solar Cells in the SES Series

March 12, 2025

We were delighted to welcome Dr. Bin Chen, Research Associate Professor at Northwestern University, to the Aydin Group. Dr. Chen, a highly respected researcher in the field of materials science, delivered a captivating talk as part of the SES Series. His research focuses on defect control in emerging materials, particularly in the context of perovskite solar cells.

Dr. Chen holds a Ph.D. in Materials Science and Engineering from Arizona State University, where he concentrated on 2D material defects. He furthered his research as a postdoctoral fellow at the University of Toronto, working on perovskites, quantum dots, and optoelectronic devices. With a long history of collaboration with the Aydin Group and Professor Ted Sargent from Northwestern University, Dr. Chen’s visit marks another important chapter in the strong partnership between our groups.

Talk Overview: "Stabilizing the Interfaces of Efficient Perovskite Solar Cells"

Dr. Chen’s talk focused on the progress and challenges of perovskite photovoltaics, which have reached impressive lab-scale efficiencies of nearly 27%. While advancements in interface control have contributed significantly to this achievement, Dr. Chen highlighted that efficient interfaces do not always guarantee long-term stability.

He discussed key issues such as halide migration through the interface into the carrier transport layer and electrode, as well as the degradation of passivation agents. Dr. Chen also explored the combined stress of light and heat on these interfaces and presented strategies for their stabilization to enhance the durability of perovskite solar cells.

We thank Dr. Chen for his insightful presentation and look forward to continued collaboration in the field of perovskite photovoltaics.

Picture together with Bin Chen in front of our building with some group members.

A scene during the presentation.