Dr. Hai-Feng Ji is current a professor of Department of Chemistry, Drexel university.He is currently a co-author of 150 peer-viewed journal articles and book chapters. He has co-authored 4 US patents, two of which have been licenced to companies. He has an H-index of 29. He is an editorial board member of several chemistry journals.

His research interests focus on MEMS devices, nanomaterials for energy and environmental applications, drug discovery, nanopillars and phosphene for energy applications, and surface chemistry.