* Corresponding authors

^a School of Materials Science and Engineering, Pusan National University, San 30 Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea
E-mail: kwhokim@pusan.ac.kr
Fax: +82-5-1514-4457
Tel: +82-51-510-3391

^b Department of Mechanical Convergence Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea
E-mail: kshui@hanyang.ac.kr
Fax: +82-2-2220-2299
Tel: +82-2-2220-0441

^c Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, China
E-mail: bizhui@umac.mo
Fax: +853-8822-2426
Tel: +853-8822-4426

^d Global Frontier R&D Center for Hybrid Interface Materials, Pusan National University, 30 Jangjeon-dong, Geumjung-gu, Busan 609-735, South Korea