1. Department of Materials Science and Engineering Inter-University Semiconductor Research Center Seoul National University Seoul 08826 Republic of Korea
2. Graduate School of Engineering Practice Seoul National University Seoul 08826 Republic of Korea
3. Thin Film Materials Research Center Korea Research Institute of Chemical Technology Daejeon 34114 Republic of Korea
4. Department of Advanced Materials Engineering for Information and Electronics Kyung Hee University Yongin 17104 Republic of Korea
5. Department of Materials Science and Engineering Seoul National University Seoul 08826 Republic of Korea