TY - CONF AU - Seong-Eun Park AU - Joseph Kopanski AU - Youn-Seon Kang AU - Larry Robins AU - Hyun-Keel Shin C2 - MRS Electronic Proceedings, Boston, MA, USA DA - 2005-03-24 00:03:00 LA - en PB - MRS Electronic Proceedings, Boston, MA, USA PY - 2005 TI - Determination of surface barrier height and surface state density in GaN films grown on sapphire substrates ER -