(Jey) Dr. Jeyakumar Ramanujam is the director of GVN SolarPower Incorporated. Before becoming Director, Dr. Jeyakumar worked as a scientist for more than a decade on solar cells at the National Physical Laboratory (CSIR), New Delhi, and McMaster University, Hamilton.

Jey also worked at the University of Waterloo, Waterloo on solar cells and device integration. He has published several review articles on solar cells and supervised graduate students.

Dr. Ramanujam is an expert in solar cell technology. He has a track record of advancing R&D in solar cells as evidenced by publications.

His four book chapters on solar cells will be published in January 2025 by Elsevier in the book “Thin Film Photovoltaics: Single-Junction and Tandem” edited by Jeyakumar Ramanujam and Jatin Rath.

Dr. Jeyakumar has expertise in solar cell fabrication, materials characterization, and solar cell device modeling. He has conducted materials and device characterization extensively and developed four mask process technologies for back junction cells and back heterojunction cells.

Dr. Jeyakumar first designed and reported interdigitated point contact back heterojunction cells where there are no grids on the light-entering side. Both p-type and n-type grids lie at the rear side.

He has collaborations with various universities and institutions from Canada, the US, South Korea, and India.

Since 2019 Dr. Jeyakumar has been serving as an Associate Editor of Solar Energy Journal. He is a Guest Editor for the special issue – Photovoltaic Recycling and Carbon-Neutral Manufacturing, which will be published by Elsevier in January 2025. His current research is focused on perovskite solar cells and cost-effective solar cells.