Alexander DeAngelis joined HNEI in 2008 as a master’s student under the supervision of Dr. Eric Miller. His graduate research included work on, but not limited to: optimizing high-mobility transparent conductive oxides as window layers for Cu(In,Ga)Se2 photovoltaic (PV) cells, exploring the viability of copper oxide (CuO) as an absorber layer for PV cells, and assessing the photoelectrochemical (PEC) water splitting capabilities of copper tungstate (CuWO4). After receiving his master’s degree in 2010, Mr. DeAngelis accepted a research position in Pohang, South Korea at the Pohang University of Science and Technology (POSTECH) at two separate laboratories, one under the supervision of Prof. Jae Sung Lee (environmental engineering) and the other under Prof. Kwang Su Kim (chemistry). His research efforts at POSTECH were predominantly focused on PEC water splitting of novel and promising oxide, sulfide, and carbon nanotube and/or graphene oxide composite photoelectrodes. After approximately 3 years in Korea, Mr. DeAngelis returned home to Hawaii where he eventually became faculty in 2015 at HNEI. His current research efforts still include investigations into novel PEC water splitting materials, but have also branched out into exploring novel approaches to fabricating tandem PV and PEC devices and PV cells that may be easily recyclable.