Kealan studied undergraduate and postgraduate Chemistry between 2009–17 at University College London (UCL) where he obtained a first class honours (summa cum laude) M.Sci. degree (2013). His doctoral work was undertaken with Dr. Hugo Bronstein, where he used an interdisciplinary approach to design novel organic conjugated materials for applications in plastic electronics. After gaining his Ph.D. (2017), he moved with the Bronstein Group to the University of Cambridge as a postdoctoral research associate.
Since mid-2018, Kealan is a Fulbright–Lloyd’s of London Research Scholar. His research fellowship, supported by the US-UK Fulbright Commission and Lloyd’s Tercentenary Research Foundation, focuses on multiexcitonic phenomena in organic semiconductors and their application in solar cells. He works with Prof. Luis Campos at Columbia University and is a Visiting Scholar in the group of Dr. Dan Congreve at the Rowland Institute at Harvard University.