Jinsub Park is a professor in the Department of Electronic Engineering and head of the Hx-corps project at Hanyang University, Seoul, South Korea. He earned his Ph.D. in 2009 from Tohoku University, Sendai, Japan; he received his MS in 2002 from GIST, South Korea. His research focus is the design of functional compound semiconductor materials and optoelectronic devices such as light-emitting diodes, sensors, transparent electrodes, photovoltaics and energy harvesting.