1. Thin Film Materials Research Center; Korea Research Institute of Chemical Technology; 141, Gajeongro, Yuseong Daejeon 34114 Republic of Korea, Fax: (+82)42-861-4151
2. Semiconductor Materials Research Center; DNF Ltd.; 142, Daehwa-ro, 132beon-gil, Daedeok-gu Daejeon 34366 Republic of Korea