Jeffrey DuBose (Kamat Group)

TiO2-Assisted Halide Ion Segregation in Mixed Halide Perovskite Films

November 18, 2020

Eilers Jeff Dubose Head Shot

Jeffrey DuBose is a fourth year graduate student advised by Prof. Prashant Kamat in the Department of Chemistry and Biochemistry. He presented "TiO2-Assisted Halide Ion Segregation in Mixed Halide Perovskite Films" at the ND Energy PD&GS Seminar in November 2020.

DuBose is a recipient of the 2020 Patrick and Jana Eilers Graduate Student Fellowship for Energy Related Research and the 2021 Forgash Fellowship for Graduate Student Research in Solar Energy. His research centers on improving the stability and performance of perovskites, a promising next-generation material for harvesting solar energy.

“The low-cost synthesis and high light conversion efficiency of perovskites make them attractive as transformative solar materials,” DuBose said. “An improved fundamental knowledge of how to make perovskites more stable is helping bring this material closer to market.”

While the solar energy field is already experiencing a great deal of growth due to falling prices of solar panels, perovskites have the potential to drive these prices even lower with their low cost and superior efficiency.

“With global energy demand quickly increasing, the world will need more renewable and clean energy solutions within the global energy portfolio to offset the environmental impact of greater energy demand,” DuBose said.

In addition to his work in the Kamat lab, DuBose collaborates with Prof. Masaru (Ken) Kuno's group as well. The expertise within the Radiation Laboratory and its affiliated faculty in solar energy materials, photochemistry, and nanomaterials was a major factor in DuBose’s decision to come to Notre Dame.

DuBose has found the university’s core facilities to be crucial for performing research. He has utilized instrumentation in the Notre Dame Integrated Imaging Facility, Center for Environmental Science and Technology, and ND Energy’s Materials Characterization Facility. He credits Ian Lightcap, research and facilities program director, for assisting with performing and understanding X-ray Photoelectron Spectroscopy (XPS) measurements.

DuBose earned his bachelor’s degree in Material Science and Engineering at the University of Arizona in 2017. As an undergraduate student, he hoped to boost his resume by getting involved in a research lab. Through this experience, he found excitement in addressing complex scientific problems and decided to pursue a Ph.D.

“One of the most important things I’ve learned by doing research is the balance between perseverance in tackling research projects and the need to quickly and critically assess results,” DuBose said, noting that it is possible to receive interesting results from experiments that may appear to “fail.”

“I’ve had an entire project birthed from what looked to me like a negative result. To the expert eye of my advisor Dr. Prashant Kamat, he was able to see the interesting phenomenon buried in the data,” he said.

Outside of the lab, DuBose is one of ND Energy’s most active associated researchers at outreach activities. He has volunteered at Art-2-Science summer camp, Science Alive, and has represented ND Energy at EdTech in the Bend. He has also had the opportunity to mentor two undergraduate Slatt fellowship scholars, Jake Drysdale (’20) and Brian Kang (’22).

DuBose’s experiences at Notre Dame have prepared him for a future in science, either in a university setting or at a national laboratory.

“I would consider it a success if I can pursue research and help others discover an interest in science,” he said.