Ajeet Rohatgi

Dr. Ajeet Rohatgi is a Regents Professor and John H. Weitnauer Jr. Chair in the College of Engineering at Georgia Institute of Technology, specializing in photovoltaics and semiconductor materials. As a Georgia Research Alliance Eminent Scholar, he leads research in silicon solar cells, surface passivation, and advanced metallization techniques.

• B.S. (E.E.), Indian Institute of Technology (1971)
• M.S. (Materials Engineering), Virginia Polytechnic Institute (1973)
• Ph.D., Lehigh University (1977).

His research focuses on photovoltaic device innovation, including tunnel oxide passivated contacts (TOPCon), PERC cells, and carrier-selective contact engineering. He pioneered the University Center of Excellence in Photovoltaics Research and Education, a DOE-funded initiative, and founded Suniva as CTO.

Analysis of his recent publications reveals expertise in silicon passivation methods, laser processing, charge injection technology, and reliability testing for industrial solar cell applications. Collaborative work includes tandem solar cells and thermophotovoltaic systems.

• Westinghouse Fellow
• IEEE Fellow
• William Cherry Award (IEEE)
• Thomas D. Callinan Award (Electrochemical Society)

Dr. Rohatgi has secured grants from DOE/NREL and led teams advancing low-cost, high-efficiency silicon solar cells. His lab at Georgia Tech focuses on scalable fabrication techniques and stability testing for next-generation photovoltaic devices.