After he received his Ph. D. degree from POSTECH in 2002, he joined the Future Chips Constellation at Rensselaer Polytechnic Institute as a research assistant professor. Dr. Kim has made pioneering contributions to the field of compound semiconductor materials and devices in particular to the fields of AlGaInN-based light-emitting diodes (LEDs) and future smart lighting applications. His recent research topics include 3-Dimensional nano-structured materials for nano-photonics applications such as near-perfect antireflection coatings for photovoltaic cells, nanostructured electrodes for organic photovoltaics, water splitting electrochemical cells, electronics noses, and dye-sensitized solar cells.