1. School of Materials Science & Engineering and Research Institute for Green Energy Convergence Technology(REGET), Gyeongsang National University, Jin-ju 660-701, Republic of Korea
2. Organic Electronics Laboratory,
Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 790-784, Republic
of Korea
3. Department of Chemistry & Research Institute of Natural Science, Gyeongsang National University, Jinju 660-701, Republic of Korea